./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:56:49,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:56:49,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:56:49,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:56:49,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:56:49,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:56:49,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:56:49,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:56:49,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:56:49,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:56:49,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:56:49,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:56:49,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:56:49,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:56:49,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:56:49,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:56:49,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:56:49,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:56:49,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:56:49,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:56:49,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:56:49,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:56:49,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:56:49,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:56:49,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:56:49,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:56:49,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:56:49,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:56:49,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:56:49,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:56:49,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:56:49,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:56:49,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:56:49,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:56:49,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:56:49,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:56:49,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:56:49,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:56:49,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:56:49,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:56:49,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:56:49,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:56:49,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:56:49,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:56:49,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:56:49,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:56:49,610 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:56:49,611 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:56:49,611 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:56:49,611 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:56:49,611 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:56:49,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:56:49,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:56:49,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:56:49,612 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:56:49,613 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:56:49,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:56:49,613 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:56:49,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:56:49,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:56:49,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:56:49,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:56:49,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:56:49,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:56:49,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:56:49,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:56:49,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:56:49,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:56:49,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:56:49,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:56:49,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:49,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:56:49,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:56:49,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:56:49,618 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:56:49,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:56:49,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:56:49,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:56:49,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:56:49,619 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_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 [2021-11-12 22:56:49,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:56:49,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:56:49,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:56:49,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:56:49,906 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:56:49,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-12 22:56:49,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/8f2c9d9a8/efc66ae469854b90820fd94237e41c87/FLAG9303ad60b [2021-11-12 22:56:51,034 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:56:51,034 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-12 22:56:51,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/8f2c9d9a8/efc66ae469854b90820fd94237e41c87/FLAG9303ad60b [2021-11-12 22:56:51,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/8f2c9d9a8/efc66ae469854b90820fd94237e41c87 [2021-11-12 22:56:51,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:56:51,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:56:51,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:51,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:56:51,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:56:51,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:51" (1/1) ... [2021-11-12 22:56:51,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d300b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:51, skipping insertion in model container [2021-11-12 22:56:51,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:51" (1/1) ... [2021-11-12 22:56:51,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:56:51,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:53,897 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:53,904 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:53,954 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:53,964 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,025 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,027 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,028 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,030 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,057 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,104 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,115 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,117 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,119 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,132 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,147 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,163 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,188 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,190 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,192 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,248 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,254 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,255 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,261 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,270 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,334 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,335 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,343 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,351 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,354 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,354 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,356 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,357 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,375 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,376 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,378 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:54,379 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:56:55,825 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2021-11-12 22:56:55,827 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2021-11-12 22:56:55,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:55,919 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:56:55,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1799e090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:55, skipping insertion in model container [2021-11-12 22:56:55,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:55,921 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:56:55,923 INFO L158 Benchmark]: Toolchain (without parser) took 4584.78ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 65.5MB in the beginning and 47.3MB in the end (delta: 18.2MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-11-12 22:56:55,924 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:56:55,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4581.97ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 65.5MB in the beginning and 47.3MB in the end (delta: 18.2MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-11-12 22:56:55,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4581.97ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 65.5MB in the beginning and 47.3MB in the end (delta: 18.2MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6136]: 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_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:56:58,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:56:58,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:56:58,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:56:58,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:56:58,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:56:58,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:56:58,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:56:58,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:56:58,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:56:58,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:56:58,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:56:58,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:56:58,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:56:58,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:56:58,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:56:58,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:56:58,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:56:58,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:56:58,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:56:58,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:56:58,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:56:58,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:56:58,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:56:58,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:56:58,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:56:58,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:56:58,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:56:58,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:56:58,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:56:58,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:56:58,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:56:58,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:56:58,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:56:58,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:56:58,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:56:58,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:56:58,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:56:58,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:56:58,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:56:58,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:56:58,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:56:58,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:56:58,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:56:58,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:56:58,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:56:58,498 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:56:58,498 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:56:58,498 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:56:58,499 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:56:58,499 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:56:58,499 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:56:58,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:56:58,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:56:58,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:56:58,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:56:58,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:56:58,503 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:56:58,503 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:56:58,503 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:56:58,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:56:58,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:56:58,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:56:58,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:56:58,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:56:58,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:56:58,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:58,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:56:58,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:56:58,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:56:58,506 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:56:58,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:56:58,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:56:58,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:56:58,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:56:58,507 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_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 [2021-11-12 22:56:58,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:56:58,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:56:58,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:56:58,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:56:58,947 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:56:58,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-12 22:56:59,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/0fd3327a8/eed7d611e09e4630823c952765d134ed/FLAG16256b15b [2021-11-12 22:57:00,118 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:57:00,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-12 22:57:00,215 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/0fd3327a8/eed7d611e09e4630823c952765d134ed/FLAG16256b15b [2021-11-12 22:57:00,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/data/0fd3327a8/eed7d611e09e4630823c952765d134ed [2021-11-12 22:57:00,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:57:00,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:57:00,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:57:00,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:57:00,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:57:00,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:57:00" (1/1) ... [2021-11-12 22:57:00,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31579d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:00, skipping insertion in model container [2021-11-12 22:57:00,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:57:00" (1/1) ... [2021-11-12 22:57:00,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:57:00,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:57:04,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2021-11-12 22:57:04,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2021-11-12 22:57:04,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:57:05,078 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:57:05,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:57:05,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2021-11-12 22:57:05,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2021-11-12 22:57:05,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:57:05,656 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:57:06,328 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2021-11-12 22:57:06,329 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2021-11-12 22:57:06,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:57:06,768 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:57:06,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06 WrapperNode [2021-11-12 22:57:06,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:57:06,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:57:06,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:57:06,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:57:06,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:06,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:57:07,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:57:07,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:57:07,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:57:07,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:57:07,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:57:07,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:57:07,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:57:07,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (1/1) ... [2021-11-12 22:57:07,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:57:07,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:57:07,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:57:07,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:57:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_122 [2021-11-12 22:57:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_122 [2021-11-12 22:57:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:57:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:57:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:57:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:57:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 22:57:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 22:57:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-12 22:57:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-12 22:57:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-11-12 22:57:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-11-12 22:57:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:57:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2021-11-12 22:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2021-11-12 22:57:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_107 [2021-11-12 22:57:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_107 [2021-11-12 22:57:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:57:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:57:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:57:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:57:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-11-12 22:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-11-12 22:57:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-11-12 22:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-11-12 22:57:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-12 22:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-12 22:57:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-11-12 22:57:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-11-12 22:57:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:57:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:57:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-12 22:57:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-12 22:57:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-12 22:57:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-12 22:57:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-11-12 22:57:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-11-12 22:57:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-12 22:57:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-12 22:57:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 22:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 22:57:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-11-12 22:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-11-12 22:57:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:57:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-12 22:57:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-12 22:57:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-12 22:57:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-12 22:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-12 22:57:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-11-12 22:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-11-12 22:57:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:57:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:57:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:57:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-12 22:57:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-12 22:57:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-12 22:57:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-12 22:57:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-12 22:57:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-12 22:57:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:57:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:57:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-12 22:57:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-12 22:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 22:57:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 22:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-11-12 22:57:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-11-12 22:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 22:57:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 22:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:57:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:57:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-12 22:57:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-12 22:57:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 22:57:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 22:57:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:57:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2021-11-12 22:57:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2021-11-12 22:57:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:57:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:57:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2021-11-12 22:57:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2021-11-12 22:57:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-11-12 22:57:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-11-12 22:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-12 22:57:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-12 22:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-11-12 22:57:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-11-12 22:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:57:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-12 22:57:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-12 22:57:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 22:57:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 22:57:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2021-11-12 22:57:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2021-11-12 22:57:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:57:07,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:57:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-11-12 22:57:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-11-12 22:57:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-12 22:57:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-12 22:57:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:57:07,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:57:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:57:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:57:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:57:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:57:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:57:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:57:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:57:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:57:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:57:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:57:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-11-12 22:57:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-11-12 22:57:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2021-11-12 22:57:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2021-11-12 22:57:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-12 22:57:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-12 22:57:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:57:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:57:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-11-12 22:57:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-11-12 22:57:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:57:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:57:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-11-12 22:57:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-11-12 22:57:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:57:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-12 22:57:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-12 22:57:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 22:57:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 22:57:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:57:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:57:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:57:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:57:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:57:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:57:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:57:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-12 22:57:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-12 22:57:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:57:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:57:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:57:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-12 22:57:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-12 22:57:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 22:57:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 22:57:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-12 22:57:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-12 22:57:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 22:57:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 22:57:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-11-12 22:57:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-11-12 22:57:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 22:57:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 22:57:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-11-12 22:57:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-11-12 22:57:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-12 22:57:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-12 22:57:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-11-12 22:57:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-11-12 22:57:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:57:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:57:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-11-12 22:57:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-11-12 22:57:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:57:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:57:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-12 22:57:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-12 22:57:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-11-12 22:57:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-11-12 22:57:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:57:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:57:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-12 22:57:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-12 22:57:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-11-12 22:57:08,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-11-12 22:57:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-12 22:57:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-12 22:57:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-11-12 22:57:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-11-12 22:57:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:57:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-12 22:57:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-12 22:57:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-11-12 22:57:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-11-12 22:57:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-11-12 22:57:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-11-12 22:57:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-12 22:57:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-12 22:57:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:57:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:57:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:57:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:57:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-11-12 22:57:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-11-12 22:57:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:57:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:57:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:57:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:57:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:57:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:57:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:57:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:57:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-12 22:57:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-12 22:57:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:57:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:57:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:57:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:57:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-12 22:57:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-12 22:57:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:57:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:57:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 22:57:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 22:57:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:57:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2021-11-12 22:57:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2021-11-12 22:57:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-12 22:57:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-12 22:57:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:57:08,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:57:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:57:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-11-12 22:57:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-11-12 22:57:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-11-12 22:57:08,034 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-11-12 22:57:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:57:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:57:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:57:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:57:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:57:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2021-11-12 22:57:08,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2021-11-12 22:57:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-12 22:57:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-12 22:57:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:57:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-12 22:57:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:57:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:57:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:57:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:57:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:57:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:57:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-12 22:57:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-12 22:57:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-12 22:57:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-12 22:57:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-11-12 22:57:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-11-12 22:57:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-12 22:57:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-12 22:57:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 22:57:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 22:57:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-11-12 22:57:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-11-12 22:57:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2021-11-12 22:57:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2021-11-12 22:57:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 22:57:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 22:57:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:57:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:57:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 22:57:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 22:57:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2021-11-12 22:57:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2021-11-12 22:57:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:57:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:57:08,040 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:57:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:57:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-11-12 22:57:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-11-12 22:57:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2021-11-12 22:57:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2021-11-12 22:57:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:57:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:57:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:57:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-11-12 22:57:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-11-12 22:57:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:57:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-12 22:57:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-12 22:57:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-12 22:57:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-12 22:57:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:57:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:57:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-11-12 22:57:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-11-12 22:57:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-11-12 22:57:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-11-12 22:57:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-11-12 22:57:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-11-12 22:57:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-11-12 22:57:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-11-12 22:57:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-12 22:57:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-12 22:57:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-11-12 22:57:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-11-12 22:57:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-11-12 22:57:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-11-12 22:57:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:57:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:57:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-12 22:57:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-12 22:57:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 22:57:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 22:57:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:57:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:57:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-12 22:57:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-12 22:57:08,046 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:57:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:57:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2021-11-12 22:57:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2021-11-12 22:57:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-12 22:57:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-12 22:57:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2021-11-12 22:57:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2021-11-12 22:57:08,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:57:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:57:08,048 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-12 22:57:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-12 22:57:23,511 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:59:19,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:59:19,948 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:59:19,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:19 BoogieIcfgContainer [2021-11-12 22:59:19,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:59:19,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:59:19,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:59:19,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:59:19,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:57:00" (1/3) ... [2021-11-12 22:59:19,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9bcf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:59:19, skipping insertion in model container [2021-11-12 22:59:19,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:57:06" (2/3) ... [2021-11-12 22:59:19,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9bcf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:59:19, skipping insertion in model container [2021-11-12 22:59:19,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:59:19" (3/3) ... [2021-11-12 22:59:19,963 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-12 22:59:19,968 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:59:19,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:59:20,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:59:20,040 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:59:20,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:59:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 2836 states, 1921 states have (on average 1.3321186881832379) internal successors, (2559), 2007 states have internal predecessors, (2559), 760 states have call successors, (760), 154 states have call predecessors, (760), 153 states have return successors, (753), 735 states have call predecessors, (753), 753 states have call successors, (753) [2021-11-12 22:59:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 22:59:20,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:20,141 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:20,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:20,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1292134057, now seen corresponding path program 1 times [2021-11-12 22:59:20,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:20,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833778029] [2021-11-12 22:59:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:20,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:20,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:20,201 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:00:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:02,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 5563 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:00:02,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-12 23:00:03,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-12 23:00:04,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:04,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833778029] [2021-11-12 23:00:04,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833778029] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:04,309 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:04,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-12 23:00:04,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554103497] [2021-11-12 23:00:04,312 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:04,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:00:04,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:00:04,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:00:04,354 INFO L87 Difference]: Start difference. First operand has 2836 states, 1921 states have (on average 1.3321186881832379) internal successors, (2559), 2007 states have internal predecessors, (2559), 760 states have call successors, (760), 154 states have call predecessors, (760), 153 states have return successors, (753), 735 states have call predecessors, (753), 753 states have call successors, (753) Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-12 23:00:07,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:00:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:33,224 INFO L93 Difference]: Finished difference Result 8873 states and 12959 transitions. [2021-11-12 23:00:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:00:33,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 156 [2021-11-12 23:00:33,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:33,302 INFO L225 Difference]: With dead ends: 8873 [2021-11-12 23:00:33,303 INFO L226 Difference]: Without dead ends: 5884 [2021-11-12 23:00:33,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:00:33,338 INFO L933 BasicCegarLoop]: 5847 mSDtfsCounter, 5313 mSDsluCounter, 28922 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 454 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25741.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5369 SdHoareTripleChecker+Valid, 34769 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 126.17ms SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27788.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:33,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5369 Valid, 34769 Invalid, 3750 Unknown, 0 Unchecked, 126.17ms Time], IncrementalHoareTripleChecker [454 Valid, 3295 Invalid, 1 Unknown, 0 Unchecked, 27788.80ms Time] [2021-11-12 23:00:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2021-11-12 23:00:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5530. [2021-11-12 23:00:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 3776 states have (on average 1.326271186440678) internal successors, (5008), 3935 states have internal predecessors, (5008), 1450 states have call successors, (1450), 303 states have call predecessors, (1450), 303 states have return successors, (1450), 1414 states have call predecessors, (1450), 1450 states have call successors, (1450) [2021-11-12 23:00:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 7908 transitions. [2021-11-12 23:00:33,795 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 7908 transitions. Word has length 156 [2021-11-12 23:00:33,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:33,796 INFO L470 AbstractCegarLoop]: Abstraction has 5530 states and 7908 transitions. [2021-11-12 23:00:33,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-12 23:00:33,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 7908 transitions. [2021-11-12 23:00:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 23:00:33,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:33,816 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:00:33,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:34,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:34,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:00:34,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:34,022 INFO L85 PathProgramCache]: Analyzing trace with hash -325306393, now seen corresponding path program 1 times [2021-11-12 23:00:34,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:34,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447093501] [2021-11-12 23:00:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:34,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:34,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:34,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:34,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:01:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:14,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 5562 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:14,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-12 23:01:16,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-12 23:01:16,930 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:16,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447093501] [2021-11-12 23:01:16,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447093501] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:16,931 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:16,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 23:01:16,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459254977] [2021-11-12 23:01:16,931 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:16,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:16,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:16,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:16,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:16,934 INFO L87 Difference]: Start difference. First operand 5530 states and 7908 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-12 23:01:25,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:25,217 INFO L93 Difference]: Finished difference Result 17901 states and 25307 transitions. [2021-11-12 23:01:25,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:25,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 156 [2021-11-12 23:01:25,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:25,349 INFO L225 Difference]: With dead ends: 17901 [2021-11-12 23:01:25,349 INFO L226 Difference]: Without dead ends: 13779 [2021-11-12 23:01:25,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:25,381 INFO L933 BasicCegarLoop]: 6937 mSDtfsCounter, 6850 mSDsluCounter, 7565 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7052.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6850 SdHoareTripleChecker+Valid, 14502 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.38ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7728.01ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:25,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6850 Valid, 14502 Invalid, 1145 Unknown, 0 Unchecked, 39.38ms Time], IncrementalHoareTripleChecker [3 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 7728.01ms Time] [2021-11-12 23:01:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2021-11-12 23:01:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 7593. [2021-11-12 23:01:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 5132 states have (on average 1.3201480904130942) internal successors, (6775), 5350 states have internal predecessors, (6775), 2017 states have call successors, (2017), 443 states have call predecessors, (2017), 443 states have return successors, (2017), 1968 states have call predecessors, (2017), 2017 states have call successors, (2017) [2021-11-12 23:01:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 10809 transitions. [2021-11-12 23:01:25,952 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 10809 transitions. Word has length 156 [2021-11-12 23:01:25,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:25,954 INFO L470 AbstractCegarLoop]: Abstraction has 7593 states and 10809 transitions. [2021-11-12 23:01:25,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-12 23:01:25,955 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 10809 transitions. [2021-11-12 23:01:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 23:01:25,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:25,962 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:01:26,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:26,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:26,177 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:26,178 INFO L85 PathProgramCache]: Analyzing trace with hash 38160105, now seen corresponding path program 1 times [2021-11-12 23:01:26,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:26,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50246855] [2021-11-12 23:01:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:26,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:26,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:26,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:26,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:02:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:05,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 5562 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 23:02:05,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-12 23:02:07,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-12 23:02:09,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:09,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50246855] [2021-11-12 23:02:09,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50246855] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:02:09,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:02:09,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 23 [2021-11-12 23:02:09,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989570476] [2021-11-12 23:02:09,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:09,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:02:09,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:09,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:02:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:02:09,287 INFO L87 Difference]: Start difference. First operand 7593 states and 10809 transitions. Second operand has 13 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-12 23:02:12,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:12,676 INFO L93 Difference]: Finished difference Result 13425 states and 19000 transitions. [2021-11-12 23:02:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:02:12,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 156 [2021-11-12 23:02:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:12,751 INFO L225 Difference]: With dead ends: 13425 [2021-11-12 23:02:12,751 INFO L226 Difference]: Without dead ends: 7239 [2021-11-12 23:02:12,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2021-11-12 23:02:12,790 INFO L933 BasicCegarLoop]: 3939 mSDtfsCounter, 15 mSDsluCounter, 43229 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2290.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 47168 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.23ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2417.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:12,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 47168 Invalid, 567 Unknown, 0 Unchecked, 53.23ms Time], IncrementalHoareTripleChecker [17 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2417.19ms Time] [2021-11-12 23:02:12,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7239 states. [2021-11-12 23:02:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7239 to 7230. [2021-11-12 23:02:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7230 states, 4863 states have (on average 1.32449105490438) internal successors, (6441), 5078 states have internal predecessors, (6441), 1923 states have call successors, (1923), 443 states have call predecessors, (1923), 443 states have return successors, (1923), 1873 states have call predecessors, (1923), 1923 states have call successors, (1923) [2021-11-12 23:02:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 10287 transitions. [2021-11-12 23:02:13,186 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 10287 transitions. Word has length 156 [2021-11-12 23:02:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:13,187 INFO L470 AbstractCegarLoop]: Abstraction has 7230 states and 10287 transitions. [2021-11-12 23:02:13,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-12 23:02:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 10287 transitions. [2021-11-12 23:02:13,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 23:02:13,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:13,193 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:02:13,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:13,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:13,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:02:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:13,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1724259995, now seen corresponding path program 1 times [2021-11-12 23:02:13,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:13,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643556004] [2021-11-12 23:02:13,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:13,407 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:13,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:13,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:13,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:02:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:52,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 5563 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:02:52,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-12 23:02:53,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-12 23:02:54,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:54,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643556004] [2021-11-12 23:02:54,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643556004] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:02:54,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:02:54,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-12 23:02:54,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206472337] [2021-11-12 23:02:54,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:54,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:02:54,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:54,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:02:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:02:54,477 INFO L87 Difference]: Start difference. First operand 7230 states and 10287 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:02:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:56,496 INFO L93 Difference]: Finished difference Result 9661 states and 13714 transitions. [2021-11-12 23:02:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:02:56,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2021-11-12 23:02:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:56,533 INFO L225 Difference]: With dead ends: 9661 [2021-11-12 23:02:56,533 INFO L226 Difference]: Without dead ends: 7593 [2021-11-12 23:02:56,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:02:56,549 INFO L933 BasicCegarLoop]: 4026 mSDtfsCounter, 833 mSDsluCounter, 24340 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1457.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 28366 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.51ms SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1546.36ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:56,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 28366 Invalid, 525 Unknown, 0 Unchecked, 26.51ms Time], IncrementalHoareTripleChecker [197 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1546.36ms Time] [2021-11-12 23:02:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2021-11-12 23:02:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7240. [2021-11-12 23:02:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3239581194826524) internal successors, (6449), 5086 states have internal predecessors, (6449), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:02:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10299 transitions. [2021-11-12 23:02:56,896 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10299 transitions. Word has length 156 [2021-11-12 23:02:56,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:56,897 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10299 transitions. [2021-11-12 23:02:56,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:02:56,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10299 transitions. [2021-11-12 23:02:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-12 23:02:56,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:56,906 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:02:57,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:57,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:57,129 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:02:57,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash -915987370, now seen corresponding path program 1 times [2021-11-12 23:02:57,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:57,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814664914] [2021-11-12 23:02:57,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:57,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:57,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:57,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:03:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:03:36,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 5704 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:03:36,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:03:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 23:03:38,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:03:39,935 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 23:03:39,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:03:39,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814664914] [2021-11-12 23:03:39,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814664914] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:03:39,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [506092418] [2021-11-12 23:03:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:03:39,936 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:03:39,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:03:39,938 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:03:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 23:03:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:03:46,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 5704 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:03:46,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:03:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:03:48,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:03:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:03:49,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [506092418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:03:49,830 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:03:49,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:03:49,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333946775] [2021-11-12 23:03:49,830 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:03:49,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:03:49,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:03:49,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:03:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:03:49,832 INFO L87 Difference]: Start difference. First operand 7240 states and 10299 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:03:52,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:04:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:04:03,252 INFO L93 Difference]: Finished difference Result 14455 states and 20684 transitions. [2021-11-12 23:04:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:04:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 216 [2021-11-12 23:04:03,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:04:03,297 INFO L225 Difference]: With dead ends: 14455 [2021-11-12 23:04:03,297 INFO L226 Difference]: Without dead ends: 7240 [2021-11-12 23:04:03,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:04:03,332 INFO L933 BasicCegarLoop]: 3969 mSDtfsCounter, 6295 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 1440 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11969.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6295 SdHoareTripleChecker+Valid, 6477 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.86ms SdHoareTripleChecker+Time, 1440 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12976.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:04:03,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6295 Valid, 6477 Invalid, 2903 Unknown, 0 Unchecked, 28.86ms Time], IncrementalHoareTripleChecker [1440 Valid, 1462 Invalid, 1 Unknown, 0 Unchecked, 12976.47ms Time] [2021-11-12 23:04:03,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-12 23:04:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-12 23:04:03,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3233422295216588) internal successors, (6446), 5086 states have internal predecessors, (6446), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:04:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10296 transitions. [2021-11-12 23:04:03,791 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10296 transitions. Word has length 216 [2021-11-12 23:04:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:04:03,793 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10296 transitions. [2021-11-12 23:04:03,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:04:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10296 transitions. [2021-11-12 23:04:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-12 23:04:03,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:04:03,805 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:04:03,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 23:04:04,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:04:04,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:04:04,229 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:04:04,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:04:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1182194276, now seen corresponding path program 1 times [2021-11-12 23:04:04,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:04:04,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865411838] [2021-11-12 23:04:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:04:04,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:04:04,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:04:04,250 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:04:04,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:04:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:04:45,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 5705 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:04:45,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:04:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 23:04:46,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:04:48,153 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 23:04:48,153 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:04:48,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865411838] [2021-11-12 23:04:48,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865411838] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:04:48,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1132545211] [2021-11-12 23:04:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:04:48,154 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:04:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:04:48,155 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:04:48,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 23:04:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:04:54,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 5705 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:04:54,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:04:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:04:56,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:04:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:04:57,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1132545211] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:04:57,825 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:04:57,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:04:57,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458473655] [2021-11-12 23:04:57,826 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:04:57,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:04:57,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:04:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:04:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:04:57,828 INFO L87 Difference]: Start difference. First operand 7240 states and 10296 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:05:00,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:05:11,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:05:11,125 INFO L93 Difference]: Finished difference Result 14455 states and 20678 transitions. [2021-11-12 23:05:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:05:11,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 217 [2021-11-12 23:05:11,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:05:11,170 INFO L225 Difference]: With dead ends: 14455 [2021-11-12 23:05:11,170 INFO L226 Difference]: Without dead ends: 7240 [2021-11-12 23:05:11,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:05:11,208 INFO L933 BasicCegarLoop]: 3968 mSDtfsCounter, 3864 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11821.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 6475 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.10ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12760.56ms IncrementalHoareTripleChecker+Time [2021-11-12 23:05:11,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3864 Valid, 6475 Invalid, 1493 Unknown, 0 Unchecked, 25.10ms Time], IncrementalHoareTripleChecker [30 Valid, 1462 Invalid, 1 Unknown, 0 Unchecked, 12760.56ms Time] [2021-11-12 23:05:11,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-12 23:05:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-12 23:05:11,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3227263395606652) internal successors, (6443), 5086 states have internal predecessors, (6443), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:05:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10293 transitions. [2021-11-12 23:05:11,705 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10293 transitions. Word has length 217 [2021-11-12 23:05:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:05:11,707 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10293 transitions. [2021-11-12 23:05:11,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:05:11,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10293 transitions. [2021-11-12 23:05:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-12 23:05:11,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:05:11,718 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:05:11,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:05:12,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:05:12,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:05:12,142 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:05:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:05:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash -730157166, now seen corresponding path program 1 times [2021-11-12 23:05:12,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:05:12,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403617206] [2021-11-12 23:05:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:05:12,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:05:12,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:05:12,162 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:05:12,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:05:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:05:54,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 5706 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:05:54,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:05:56,405 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 23:05:56,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:05:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 23:05:57,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:05:57,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403617206] [2021-11-12 23:05:57,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403617206] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:05:57,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [367089943] [2021-11-12 23:05:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:05:57,938 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:05:57,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:05:57,949 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:05:57,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-12 23:06:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:04,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 5706 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:06:04,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:06:06,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:08,316 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:06:08,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [367089943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:08,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:06:08,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:06:08,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489686691] [2021-11-12 23:06:08,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:08,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:06:08,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:08,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:06:08,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:06:08,318 INFO L87 Difference]: Start difference. First operand 7240 states and 10293 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:06:11,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:06:21,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:21,430 INFO L93 Difference]: Finished difference Result 14455 states and 20672 transitions. [2021-11-12 23:06:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:21,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 218 [2021-11-12 23:06:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:21,470 INFO L225 Difference]: With dead ends: 14455 [2021-11-12 23:06:21,470 INFO L226 Difference]: Without dead ends: 7240 [2021-11-12 23:06:21,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:06:21,502 INFO L933 BasicCegarLoop]: 3967 mSDtfsCounter, 6289 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 1440 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11661.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6289 SdHoareTripleChecker+Valid, 6473 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.81ms SdHoareTripleChecker+Time, 1440 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12631.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:21,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6289 Valid, 6473 Invalid, 2903 Unknown, 0 Unchecked, 27.81ms Time], IncrementalHoareTripleChecker [1440 Valid, 1462 Invalid, 1 Unknown, 0 Unchecked, 12631.47ms Time] [2021-11-12 23:06:21,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-12 23:06:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-12 23:06:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3221104495996716) internal successors, (6440), 5086 states have internal predecessors, (6440), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:06:22,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10290 transitions. [2021-11-12 23:06:22,128 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10290 transitions. Word has length 218 [2021-11-12 23:06:22,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:22,130 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10290 transitions. [2021-11-12 23:06:22,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:06:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10290 transitions. [2021-11-12 23:06:22,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-12 23:06:22,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:22,141 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:22,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:22,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:22,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:06:22,561 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:22,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash 512607960, now seen corresponding path program 1 times [2021-11-12 23:06:22,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:06:22,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041568000] [2021-11-12 23:06:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:22,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:06:22,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:06:22,587 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:06:22,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:07:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:03,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 5707 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:07:03,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 23:07:05,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 23:07:06,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:06,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041568000] [2021-11-12 23:07:06,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041568000] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:06,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [613998096] [2021-11-12 23:07:06,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:06,791 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:07:06,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:07:06,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:07:06,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 23:07:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:13,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 5707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:07:13,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:07:15,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:16,758 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:07:16,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [613998096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:16,758 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:07:16,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:07:16,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530734601] [2021-11-12 23:07:16,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:16,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:07:16,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:07:16,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:07:16,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:07:16,761 INFO L87 Difference]: Start difference. First operand 7240 states and 10290 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:07:19,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:07:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:29,827 INFO L93 Difference]: Finished difference Result 14455 states and 20666 transitions. [2021-11-12 23:07:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:07:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 219 [2021-11-12 23:07:29,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:29,862 INFO L225 Difference]: With dead ends: 14455 [2021-11-12 23:07:29,863 INFO L226 Difference]: Without dead ends: 7240 [2021-11-12 23:07:29,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 862 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:07:29,890 INFO L933 BasicCegarLoop]: 3966 mSDtfsCounter, 3862 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11666.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 6471 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.38ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12575.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:29,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3862 Valid, 6471 Invalid, 1493 Unknown, 0 Unchecked, 24.38ms Time], IncrementalHoareTripleChecker [30 Valid, 1462 Invalid, 1 Unknown, 0 Unchecked, 12575.66ms Time] [2021-11-12 23:07:29,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-12 23:07:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-12 23:07:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3214945596386778) internal successors, (6437), 5086 states have internal predecessors, (6437), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:07:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10287 transitions. [2021-11-12 23:07:30,368 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10287 transitions. Word has length 219 [2021-11-12 23:07:30,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:30,371 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10287 transitions. [2021-11-12 23:07:30,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:07:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10287 transitions. [2021-11-12 23:07:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-12 23:07:30,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:30,382 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:30,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:30,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:30,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:30,805 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:30,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash 498137806, now seen corresponding path program 1 times [2021-11-12 23:07:30,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:30,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082970723] [2021-11-12 23:07:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:30,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:30,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:30,833 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:30,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:08:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:11,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 5708 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:08:11,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 23:08:13,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 23:08:14,888 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:08:14,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082970723] [2021-11-12 23:08:14,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082970723] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:08:14,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1668796747] [2021-11-12 23:08:14,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:14,890 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:08:14,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:08:14,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:08:14,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-12 23:08:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:21,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 5708 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:08:21,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:08:23,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:08:25,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1668796747] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:08:25,322 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:08:25,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:08:25,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131871550] [2021-11-12 23:08:25,324 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:08:25,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:08:25,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:08:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:08:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:08:25,326 INFO L87 Difference]: Start difference. First operand 7240 states and 10287 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:08:28,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:08:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:37,995 INFO L93 Difference]: Finished difference Result 14455 states and 20660 transitions. [2021-11-12 23:08:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:08:37,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 220 [2021-11-12 23:08:37,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:38,029 INFO L225 Difference]: With dead ends: 14455 [2021-11-12 23:08:38,029 INFO L226 Difference]: Without dead ends: 7240 [2021-11-12 23:08:38,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:08:38,061 INFO L933 BasicCegarLoop]: 3965 mSDtfsCounter, 3861 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11279.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3861 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.35ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12160.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:38,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3861 Valid, 6469 Invalid, 1493 Unknown, 0 Unchecked, 21.35ms Time], IncrementalHoareTripleChecker [30 Valid, 1462 Invalid, 1 Unknown, 0 Unchecked, 12160.37ms Time] [2021-11-12 23:08:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-12 23:08:38,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-12 23:08:38,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3208786696776842) internal successors, (6434), 5086 states have internal predecessors, (6434), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:08:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10284 transitions. [2021-11-12 23:08:38,535 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10284 transitions. Word has length 220 [2021-11-12 23:08:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:08:38,536 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10284 transitions. [2021-11-12 23:08:38,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:08:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10284 transitions. [2021-11-12 23:08:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-12 23:08:38,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:38,547 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:38,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:08:38,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:08:38,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:08:38,963 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:08:38,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash 164079636, now seen corresponding path program 1 times [2021-11-12 23:08:38,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:08:38,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383145576] [2021-11-12 23:08:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:38,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:08:38,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:08:38,978 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:08:38,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:09:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:20,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 5709 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:09:20,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 23:09:22,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 23:09:23,551 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:23,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383145576] [2021-11-12 23:09:23,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383145576] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:09:23,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [137922196] [2021-11-12 23:09:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:23,552 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:09:23,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:09:23,553 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:09:23,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-12 23:09:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:29,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 5709 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:09:29,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:09:31,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-12 23:09:33,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [137922196] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:09:33,246 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:33,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:09:33,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401325782] [2021-11-12 23:09:33,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:33,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:09:33,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:33,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:09:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:09:33,248 INFO L87 Difference]: Start difference. First operand 7240 states and 10284 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:09:36,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:09:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:45,827 INFO L93 Difference]: Finished difference Result 14455 states and 20654 transitions. [2021-11-12 23:09:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:09:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 221 [2021-11-12 23:09:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:45,860 INFO L225 Difference]: With dead ends: 14455 [2021-11-12 23:09:45,860 INFO L226 Difference]: Without dead ends: 7240 [2021-11-12 23:09:45,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 870 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:09:45,888 INFO L933 BasicCegarLoop]: 3964 mSDtfsCounter, 3860 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11214.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3860 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.39ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12060.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:45,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3860 Valid, 6467 Invalid, 1493 Unknown, 0 Unchecked, 20.39ms Time], IncrementalHoareTripleChecker [30 Valid, 1462 Invalid, 1 Unknown, 0 Unchecked, 12060.04ms Time] [2021-11-12 23:09:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-12 23:09:46,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-12 23:09:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4871 states have (on average 1.3202627797166906) internal successors, (6431), 5086 states have internal predecessors, (6431), 1925 states have call successors, (1925), 443 states have call predecessors, (1925), 443 states have return successors, (1925), 1875 states have call predecessors, (1925), 1925 states have call successors, (1925) [2021-11-12 23:09:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 10281 transitions. [2021-11-12 23:09:46,341 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 10281 transitions. Word has length 221 [2021-11-12 23:09:46,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:46,342 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 10281 transitions. [2021-11-12 23:09:46,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-12 23:09:46,342 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 10281 transitions. [2021-11-12 23:09:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-12 23:09:46,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:46,352 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:46,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:46,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2021-11-12 23:09:46,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:09:46,761 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1487272438, now seen corresponding path program 1 times [2021-11-12 23:09:46,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:46,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339461968] [2021-11-12 23:09:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:46,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:46,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:46,776 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:46,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ca0d9-f01c-412e-b1a4-28dc991dc321/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process