./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7 --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 a03ad4e15fecab938e9e70aed8b753ecf99ee66a89bf97a267f1c578afd42981 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:37:56,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:37:56,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:37:56,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:37:56,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:37:56,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:37:56,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:37:56,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:37:56,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:37:56,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:37:56,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:37:56,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:37:56,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:37:56,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:37:56,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:37:56,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:37:56,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:37:56,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:37:56,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:37:56,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:37:56,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:37:56,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:37:56,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:37:56,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:37:56,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:37:56,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:37:56,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:37:56,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:37:56,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:37:56,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:37:56,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:37:56,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:37:56,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:37:56,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:37:56,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:37:56,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:37:56,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:37:56,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:37:56,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:37:56,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:37:56,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:37:56,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:37:56,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:37:56,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:37:56,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:37:56,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:37:56,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:37:56,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:37:56,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:37:56,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:37:56,683 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:37:56,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:37:56,684 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:37:56,684 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:37:56,684 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:37:56,685 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:37:56,685 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:37:56,685 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:37:56,685 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:37:56,686 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:37:56,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:37:56,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:37:56,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:37:56,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:37:56,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:37:56,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:37:56,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:37:56,688 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:37:56,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:37:56,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:37:56,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:37:56,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:37:56,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:37:56,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:37:56,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:37:56,692 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:37:56,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:37:56,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:37:56,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:37:56,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:37:56,693 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_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a03ad4e15fecab938e9e70aed8b753ecf99ee66a89bf97a267f1c578afd42981 [2021-11-25 20:37:56,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:37:56,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:37:56,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:37:56,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:37:56,968 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:37:56,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:37:57,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/data/206ed31f0/0a7780f79a7d4c5091a95592dd490380/FLAGaa975fdc7 [2021-11-25 20:37:58,082 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:37:58,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:37:58,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/data/206ed31f0/0a7780f79a7d4c5091a95592dd490380/FLAGaa975fdc7 [2021-11-25 20:37:58,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/data/206ed31f0/0a7780f79a7d4c5091a95592dd490380 [2021-11-25 20:37:58,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:37:58,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:37:58,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:37:58,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:37:58,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:37:58,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:37:58" (1/1) ... [2021-11-25 20:37:58,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ecaf21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:37:58, skipping insertion in model container [2021-11-25 20:37:58,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:37:58" (1/1) ... [2021-11-25 20:37:58,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:37:58,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:38:05,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607702,607715] [2021-11-25 20:38:05,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607849,607862] [2021-11-25 20:38:05,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607988,608001] [2021-11-25 20:38:05,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[608146,608159] [2021-11-25 20:38:05,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:38:05,145 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:38:05,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607702,607715] [2021-11-25 20:38:05,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607849,607862] [2021-11-25 20:38:05,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607988,608001] [2021-11-25 20:38:05,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[608146,608159] [2021-11-25 20:38:05,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:38:06,282 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:38:06,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06 WrapperNode [2021-11-25 20:38:06,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:38:06,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:38:06,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:38:06,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:38:06,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:06,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,000 INFO L137 Inliner]: procedures = 673, calls = 7407, calls flagged for inlining = 360, calls inlined = 339, statements flattened = 15802 [2021-11-25 20:38:07,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:38:07,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:38:07,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:38:07,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:38:07,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:38:07,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:38:07,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:38:07,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:38:07,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (1/1) ... [2021-11-25 20:38:07,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:38:08,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:38:08,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:38:08,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:38:08,147 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 20:38:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 20:38:08,147 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-25 20:38:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-25 20:38:08,148 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-25 20:38:08,148 INFO L130 BoogieDeclarations]: Found specification of procedure ql_timer [2021-11-25 20:38:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_timer [2021-11-25 20:38:08,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:38:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:38:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 20:38:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 20:38:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-25 20:38:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-25 20:38:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 20:38:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 20:38:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-25 20:38:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-25 20:38:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-25 20:38:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-25 20:38:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:38:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:38:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-25 20:38:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-25 20:38:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-25 20:38:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-25 20:38:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-25 20:38:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-25 20:38:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-25 20:38:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-25 20:38:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 20:38:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 20:38:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-25 20:38:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-25 20:38:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-25 20:38:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-25 20:38:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 20:38:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 20:38:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:38:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:38:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 20:38:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 20:38:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:38:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:38:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 20:38:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 20:38:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:38:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:38:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-25 20:38:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-25 20:38:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-25 20:38:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-25 20:38:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-11-25 20:38:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-11-25 20:38:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:38:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:38:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-25 20:38:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-25 20:38:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-25 20:38:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-25 20:38:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_22 [2021-11-25 20:38:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_22 [2021-11-25 20:38:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-25 20:38:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-25 20:38:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-25 20:38:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-25 20:38:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-25 20:38:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-25 20:38:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-25 20:38:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-25 20:38:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:38:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:38:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:38:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:38:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-25 20:38:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-25 20:38:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:38:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:38:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 20:38:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 20:38:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-25 20:38:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-25 20:38:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:38:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:38:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:38:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:38:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-25 20:38:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-25 20:38:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-25 20:38:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-25 20:38:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-11-25 20:38:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-11-25 20:38:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 20:38:08,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 20:38:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:38:08,164 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:38:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:38:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 20:38:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 20:38:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-25 20:38:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-25 20:38:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-25 20:38:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-25 20:38:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-25 20:38:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-25 20:38:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-25 20:38:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-25 20:38:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-25 20:38:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-25 20:38:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 20:38:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 20:38:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-25 20:38:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-25 20:38:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 20:38:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 20:38:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-25 20:38:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-25 20:38:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-25 20:38:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-25 20:38:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-25 20:38:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-25 20:38:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:38:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:38:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-25 20:38:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-25 20:38:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:38:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:38:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-25 20:38:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-25 20:38:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 20:38:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 20:38:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:38:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-25 20:38:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-25 20:38:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 20:38:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 20:38:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:38:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:38:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:38:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:38:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-25 20:38:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-25 20:38:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-25 20:38:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-25 20:38:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-25 20:38:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-25 20:38:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:38:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-25 20:38:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-25 20:38:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:38:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:38:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:38:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:38:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:38:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:38:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:38:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:38:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:38:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 20:38:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 20:38:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:38:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:38:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-25 20:38:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-25 20:38:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-25 20:38:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-25 20:38:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:38:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:38:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-25 20:38:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-25 20:38:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 20:38:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 20:38:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 20:38:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 20:38:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-25 20:38:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-25 20:38:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-25 20:38:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-25 20:38:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 20:38:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 20:38:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:38:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:38:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-25 20:38:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-25 20:38:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-25 20:38:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-25 20:38:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-25 20:38:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-25 20:38:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:38:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-25 20:38:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-25 20:38:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-25 20:38:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-25 20:38:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 20:38:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 20:38:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-25 20:38:08,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-25 20:38:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:38:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 20:38:08,203 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 20:38:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:38:08,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:38:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:38:08,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:38:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:38:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:38:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-25 20:38:08,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-25 20:38:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-25 20:38:08,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-25 20:38:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:38:08,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:38:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 20:38:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 20:38:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-25 20:38:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-25 20:38:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:38:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:38:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-25 20:38:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-25 20:38:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-25 20:38:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-25 20:38:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 20:38:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 20:38:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-25 20:38:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-25 20:38:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 20:38:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 20:38:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-25 20:38:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-25 20:38:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:38:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:38:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:38:08,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:38:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:38:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:38:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 20:38:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 20:38:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-25 20:38:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-25 20:38:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-25 20:38:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-25 20:38:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-25 20:38:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-25 20:38:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 20:38:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 20:38:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-25 20:38:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-25 20:38:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 20:38:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 20:38:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:38:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:38:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:38:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:38:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-25 20:38:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-25 20:38:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 20:38:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 20:38:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-25 20:38:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-25 20:38:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-25 20:38:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-25 20:38:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:38:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:38:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-25 20:38:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-25 20:38:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:38:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:38:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:38:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:38:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-25 20:38:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-25 20:38:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 20:38:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 20:38:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:38:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:38:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-25 20:38:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-25 20:38:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-25 20:38:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-25 20:38:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 20:38:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 20:38:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:38:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:38:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-25 20:38:08,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-25 20:38:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:38:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-25 20:38:08,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-25 20:38:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 20:38:08,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 20:38:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-25 20:38:08,231 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-25 20:38:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-25 20:38:08,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-25 20:38:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:38:08,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:38:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-25 20:38:08,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-25 20:38:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-25 20:38:08,232 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-25 20:38:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-25 20:38:08,232 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-25 20:38:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:38:08,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:38:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-25 20:38:08,233 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-25 20:38:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 20:38:08,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 20:38:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 20:38:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 20:38:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-25 20:38:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-25 20:38:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 20:38:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 20:38:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:38:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:38:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-25 20:38:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-25 20:38:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-25 20:38:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-25 20:38:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 20:38:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 20:38:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-25 20:38:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-25 20:38:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-25 20:38:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-25 20:38:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 20:38:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 20:38:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-25 20:38:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-25 20:38:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:38:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:38:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 20:38:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 20:38:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:38:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:38:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:38:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-25 20:38:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-25 20:38:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 20:38:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 20:38:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-25 20:38:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-25 20:38:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:38:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:38:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-25 20:38:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-25 20:38:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:38:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 20:38:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 20:38:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-25 20:38:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-25 20:38:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-25 20:38:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-25 20:38:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-25 20:38:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-25 20:38:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 20:38:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 20:38:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:38:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-25 20:38:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-25 20:38:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-25 20:38:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-25 20:38:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 20:38:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 20:38:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-25 20:38:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-25 20:38:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 20:38:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 20:38:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:38:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:38:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 20:38:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 20:38:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:38:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:38:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:38:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:38:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 20:38:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 20:38:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-25 20:38:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-25 20:38:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-25 20:38:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-25 20:38:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-25 20:38:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-25 20:38:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-25 20:38:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-25 20:38:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-25 20:38:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-25 20:38:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 20:38:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 20:38:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:38:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:38:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 20:38:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 20:38:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-25 20:38:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-25 20:38:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 20:38:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 20:38:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-25 20:38:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-25 20:38:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 20:38:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 20:38:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:38:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:38:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 20:38:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 20:38:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-25 20:38:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-25 20:38:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:38:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:38:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-25 20:38:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-25 20:38:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:38:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-25 20:38:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-25 20:38:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:38:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:38:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-11-25 20:38:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-11-25 20:38:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-25 20:38:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-25 20:38:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:38:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:38:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 20:38:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 20:38:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-25 20:38:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-25 20:38:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-25 20:38:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-25 20:38:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 20:38:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 20:38:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-25 20:38:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-25 20:38:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-25 20:38:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-25 20:38:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 20:38:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 20:38:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 20:38:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 20:38:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-25 20:38:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-25 20:38:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-25 20:38:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-25 20:38:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-25 20:38:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-25 20:38:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 20:38:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 20:38:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 20:38:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 20:38:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-25 20:38:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-25 20:38:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-25 20:38:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-25 20:38:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:38:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:38:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-25 20:38:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-25 20:38:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-25 20:38:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-25 20:38:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 20:38:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 20:38:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-25 20:38:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-25 20:38:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 20:38:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 20:38:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-25 20:38:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-25 20:38:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-25 20:38:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-25 20:38:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-25 20:38:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-25 20:38:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-25 20:38:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-25 20:38:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 20:38:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 20:38:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:38:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:38:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 20:38:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:38:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-25 20:38:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-25 20:38:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-25 20:38:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-25 20:38:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-25 20:38:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-25 20:38:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:38:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:38:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-25 20:38:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-25 20:38:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-25 20:38:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-25 20:38:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-25 20:38:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-25 20:38:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-25 20:38:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-25 20:38:09,946 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:38:09,952 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:38:10,147 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:38:33,184 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:38:38,603 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:38:38,603 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 20:38:38,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:38:38 BoogieIcfgContainer [2021-11-25 20:38:38,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:38:38,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:38:38,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:38:38,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:38:38,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:37:58" (1/3) ... [2021-11-25 20:38:38,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfec71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:38:38, skipping insertion in model container [2021-11-25 20:38:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:38:06" (2/3) ... [2021-11-25 20:38:38,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfec71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:38:38, skipping insertion in model container [2021-11-25 20:38:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:38:38" (3/3) ... [2021-11-25 20:38:38,621 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:38:38,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:38:38,627 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 20:38:38,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:38:38,696 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 [2021-11-25 20:38:38,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:38:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 3594 states, 2147 states have (on average 1.3032137866790872) internal successors, (2798), 2225 states have internal predecessors, (2798), 1207 states have call successors, (1207), 238 states have call predecessors, (1207), 237 states have return successors, (1201), 1182 states have call predecessors, (1201), 1201 states have call successors, (1201) [2021-11-25 20:38:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 20:38:38,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:38,792 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:38,792 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash 434942836, now seen corresponding path program 1 times [2021-11-25 20:38:38,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:38,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602109733] [2021-11-25 20:38:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:38,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 20:38:39,948 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:39,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602109733] [2021-11-25 20:38:39,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602109733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:39,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:39,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:38:39,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615334656] [2021-11-25 20:38:39,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:39,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:38:39,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:39,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:38:39,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:38:40,004 INFO L87 Difference]: Start difference. First operand has 3594 states, 2147 states have (on average 1.3032137866790872) internal successors, (2798), 2225 states have internal predecessors, (2798), 1207 states have call successors, (1207), 238 states have call predecessors, (1207), 237 states have return successors, (1201), 1182 states have call predecessors, (1201), 1201 states have call successors, (1201) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-25 20:38:43,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:45,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:38:51,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:52,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:38:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:58,881 INFO L93 Difference]: Finished difference Result 8860 states and 12764 transitions. [2021-11-25 20:38:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:38:58,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-11-25 20:38:58,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:58,960 INFO L225 Difference]: With dead ends: 8860 [2021-11-25 20:38:58,960 INFO L226 Difference]: Without dead ends: 5228 [2021-11-25 20:38:58,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:38:58,998 INFO L933 BasicCegarLoop]: 5189 mSDtfsCounter, 5158 mSDsluCounter, 8339 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 12414 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:59,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 12414 Invalid, 1874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1871 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2021-11-25 20:38:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2021-11-25 20:38:59,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5224. [2021-11-25 20:38:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 3144 states have (on average 1.3008905852417303) internal successors, (4090), 3252 states have internal predecessors, (4090), 1697 states have call successors, (1697), 382 states have call predecessors, (1697), 382 states have return successors, (1701), 1669 states have call predecessors, (1701), 1697 states have call successors, (1701) [2021-11-25 20:38:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 7488 transitions. [2021-11-25 20:38:59,501 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 7488 transitions. Word has length 34 [2021-11-25 20:38:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:59,502 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 7488 transitions. [2021-11-25 20:38:59,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-25 20:38:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 7488 transitions. [2021-11-25 20:38:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-25 20:38:59,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:59,511 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:59,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:38:59,511 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:38:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:59,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1639737901, now seen corresponding path program 1 times [2021-11-25 20:38:59,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:59,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090224960] [2021-11-25 20:38:59,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:59,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-25 20:39:00,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:00,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090224960] [2021-11-25 20:39:00,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090224960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:00,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:00,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:39:00,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296234620] [2021-11-25 20:39:00,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:00,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:39:00,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:00,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:39:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:39:00,438 INFO L87 Difference]: Start difference. First operand 5224 states and 7488 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:39:03,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:05,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:11,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:13,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:14,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:19,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:21,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:27,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:31,229 INFO L93 Difference]: Finished difference Result 9921 states and 14478 transitions. [2021-11-25 20:39:31,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:39:31,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2021-11-25 20:39:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:31,314 INFO L225 Difference]: With dead ends: 9921 [2021-11-25 20:39:31,315 INFO L226 Difference]: Without dead ends: 9919 [2021-11-25 20:39:31,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:39:31,324 INFO L933 BasicCegarLoop]: 6772 mSDtfsCounter, 6303 mSDsluCounter, 12944 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 254 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 18091 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:31,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6543 Valid, 18091 Invalid, 3042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [254 Valid, 2782 Invalid, 6 Unknown, 0 Unchecked, 30.2s Time] [2021-11-25 20:39:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9919 states. [2021-11-25 20:39:31,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9919 to 9315. [2021-11-25 20:39:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9315 states, 5595 states have (on average 1.3038427167113493) internal successors, (7295), 5792 states have internal predecessors, (7295), 3101 states have call successors, (3101), 618 states have call predecessors, (3101), 618 states have return successors, (3113), 3046 states have call predecessors, (3113), 3101 states have call successors, (3113) [2021-11-25 20:39:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9315 states to 9315 states and 13509 transitions. [2021-11-25 20:39:31,865 INFO L78 Accepts]: Start accepts. Automaton has 9315 states and 13509 transitions. Word has length 97 [2021-11-25 20:39:31,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:31,868 INFO L470 AbstractCegarLoop]: Abstraction has 9315 states and 13509 transitions. [2021-11-25 20:39:31,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:39:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 9315 states and 13509 transitions. [2021-11-25 20:39:31,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2021-11-25 20:39:31,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:31,954 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:31,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:39:31,955 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:39:31,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2099715975, now seen corresponding path program 1 times [2021-11-25 20:39:31,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:31,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274675387] [2021-11-25 20:39:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:31,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:33,052 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2021-11-25 20:39:33,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:33,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274675387] [2021-11-25 20:39:33,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274675387] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:33,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301830594] [2021-11-25 20:39:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:33,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:33,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:33,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:33,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:39:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:36,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 11760 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:39:36,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2021-11-25 20:39:37,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:39:37,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301830594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:37,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:39:37,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-25 20:39:37,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954288017] [2021-11-25 20:39:37,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:37,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:39:37,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:39:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:39:37,377 INFO L87 Difference]: Start difference. First operand 9315 states and 13509 transitions. Second operand has 5 states, 5 states have (on average 47.0) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (79), 3 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-25 20:39:40,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:39:42,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:50,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:52,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:39:55,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:40:00,757 INFO L93 Difference]: Finished difference Result 18652 states and 27471 transitions. [2021-11-25 20:40:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:40:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (79), 3 states have call predecessors, (79), 2 states have call successors, (79) Word has length 557 [2021-11-25 20:40:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:40:00,851 INFO L225 Difference]: With dead ends: 18652 [2021-11-25 20:40:00,852 INFO L226 Difference]: Without dead ends: 9351 [2021-11-25 20:40:01,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:40:01,022 INFO L933 BasicCegarLoop]: 4436 mSDtfsCounter, 5 mSDsluCounter, 15391 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17734 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:40:01,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 17734 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2806 Invalid, 4 Unknown, 0 Unchecked, 23.0s Time] [2021-11-25 20:40:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9351 states. [2021-11-25 20:40:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9351 to 9327. [2021-11-25 20:40:01,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9327 states, 5604 states have (on average 1.3033547466095645) internal successors, (7304), 5801 states have internal predecessors, (7304), 3101 states have call successors, (3101), 618 states have call predecessors, (3101), 621 states have return successors, (3119), 3049 states have call predecessors, (3119), 3101 states have call successors, (3119) [2021-11-25 20:40:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9327 states to 9327 states and 13524 transitions. [2021-11-25 20:40:01,638 INFO L78 Accepts]: Start accepts. Automaton has 9327 states and 13524 transitions. Word has length 557 [2021-11-25 20:40:01,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:40:01,639 INFO L470 AbstractCegarLoop]: Abstraction has 9327 states and 13524 transitions. [2021-11-25 20:40:01,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (79), 3 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-25 20:40:01,640 INFO L276 IsEmpty]: Start isEmpty. Operand 9327 states and 13524 transitions. [2021-11-25 20:40:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2021-11-25 20:40:01,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:40:01,727 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:40:01,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:40:01,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-25 20:40:01,941 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:40:01,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:40:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1171468939, now seen corresponding path program 1 times [2021-11-25 20:40:01,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:40:01,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552049703] [2021-11-25 20:40:01,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:01,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:40:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2021-11-25 20:40:03,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:40:03,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552049703] [2021-11-25 20:40:03,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552049703] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:03,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405582209] [2021-11-25 20:40:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:03,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:40:03,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:40:03,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:40:03,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:40:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:06,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 11888 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:40:06,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:40:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2021-11-25 20:40:07,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:40:07,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405582209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:40:07,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:40:07,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-25 20:40:07,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732133850] [2021-11-25 20:40:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:40:07,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:40:07,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:40:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:40:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:40:07,061 INFO L87 Difference]: Start difference. First operand 9327 states and 13524 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-25 20:40:10,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:40:12,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:18,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:21,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:22,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:40:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:40:26,621 INFO L93 Difference]: Finished difference Result 18673 states and 27303 transitions. [2021-11-25 20:40:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:40:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 565 [2021-11-25 20:40:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:40:26,687 INFO L225 Difference]: With dead ends: 18673 [2021-11-25 20:40:26,688 INFO L226 Difference]: Without dead ends: 9360 [2021-11-25 20:40:26,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:40:26,741 INFO L933 BasicCegarLoop]: 4412 mSDtfsCounter, 19 mSDsluCounter, 10189 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 13209 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:40:26,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 13209 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2112 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2021-11-25 20:40:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9360 states. [2021-11-25 20:40:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 9360. [2021-11-25 20:40:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9360 states, 5625 states have (on average 1.3027555555555557) internal successors, (7328), 5822 states have internal predecessors, (7328), 3110 states have call successors, (3110), 621 states have call predecessors, (3110), 624 states have return successors, (3131), 3058 states have call predecessors, (3131), 3110 states have call successors, (3131) [2021-11-25 20:40:27,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9360 states to 9360 states and 13569 transitions. [2021-11-25 20:40:27,286 INFO L78 Accepts]: Start accepts. Automaton has 9360 states and 13569 transitions. Word has length 565 [2021-11-25 20:40:27,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:40:27,292 INFO L470 AbstractCegarLoop]: Abstraction has 9360 states and 13569 transitions. [2021-11-25 20:40:27,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-25 20:40:27,293 INFO L276 IsEmpty]: Start isEmpty. Operand 9360 states and 13569 transitions. [2021-11-25 20:40:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-11-25 20:40:27,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:40:27,367 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 9, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:40:27,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:40:27,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:40:27,583 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:40:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:40:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash -639991044, now seen corresponding path program 1 times [2021-11-25 20:40:27,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:40:27,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47072428] [2021-11-25 20:40:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:27,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:40:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:28,468 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-11-25 20:40:28,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:40:28,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47072428] [2021-11-25 20:40:28,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47072428] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:28,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376065205] [2021-11-25 20:40:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:28,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:40:28,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:40:28,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:40:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195e56c7-f73b-4859-b441-4bf3b37a41e4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:40:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:31,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 11914 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:40:31,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:40:33,350 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 330 proven. 1 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-11-25 20:40:33,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:40:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2021-11-25 20:40:35,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376065205] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:40:35,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [222837085] [2021-11-25 20:40:35,067 INFO L159 IcfgInterpreter]: Started Sifa with 312 locations of interest [2021-11-25 20:40:35,067 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:40:35,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:40:35,080 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:40:35,081 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:43:49,565 WARN L227 SmtUtils]: Spent 10.20s on a formula simplification that was a NOOP. DAG size: 12486 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:43:59,801 WARN L227 SmtUtils]: Spent 10.20s on a formula simplification that was a NOOP. DAG size: 12486 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:44:11,393 WARN L227 SmtUtils]: Spent 11.40s on a formula simplification. DAG size of input: 12669 DAG size of output: 12543 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:44:21,824 WARN L227 SmtUtils]: Spent 10.31s on a formula simplification that was a NOOP. DAG size: 12486 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:44:32,087 WARN L227 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 12486 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:44:43,466 WARN L227 SmtUtils]: Spent 11.32s on a formula simplification. DAG size of input: 12669 DAG size of output: 12543 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:49:42,196 WARN L227 SmtUtils]: Spent 10.67s on a formula simplification that was a NOOP. DAG size: 12549 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:49:52,887 WARN L227 SmtUtils]: Spent 10.67s on a formula simplification that was a NOOP. DAG size: 12549 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:50:04,449 WARN L227 SmtUtils]: Spent 11.45s on a formula simplification. DAG size of input: 12674 DAG size of output: 12549 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:50:15,265 WARN L227 SmtUtils]: Spent 10.69s on a formula simplification that was a NOOP. DAG size: 12549 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:50:26,016 WARN L227 SmtUtils]: Spent 10.73s on a formula simplification that was a NOOP. DAG size: 12549 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:50:37,527 WARN L227 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 12674 DAG size of output: 12549 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)