./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-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0 --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 a5840d200f9b01baa7c7c0720decd9e57e03b81f3e57be2769ef74cbe72cbe99 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:33:16,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:33:16,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:33:16,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:33:16,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:33:16,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:33:16,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:33:16,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:33:16,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:33:16,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:33:16,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:33:16,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:33:16,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:33:16,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:33:16,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:33:16,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:33:16,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:33:16,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:33:16,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:33:16,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:33:16,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:33:16,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:33:16,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:33:16,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:33:16,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:33:16,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:33:16,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:33:16,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:33:16,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:33:16,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:33:16,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:33:16,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:33:16,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:33:16,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:33:16,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:33:16,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:33:16,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:33:16,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:33:16,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:33:16,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:33:16,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:33:16,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:33:16,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:33:16,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:33:16,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:33:16,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:33:16,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:33:16,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:33:16,404 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:33:16,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:33:16,405 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:33:16,405 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:33:16,406 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:33:16,406 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:33:16,406 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:33:16,406 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:33:16,406 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:33:16,407 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:33:16,407 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:33:16,407 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:33:16,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:33:16,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:33:16,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:33:16,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:33:16,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:33:16,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:33:16,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:33:16,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:33:16,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:33:16,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:33:16,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:33:16,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:33:16,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:33:16,410 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:33:16,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:33:16,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:33:16,411 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:33:16,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:33:16,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:33:16,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:33:16,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5840d200f9b01baa7c7c0720decd9e57e03b81f3e57be2769ef74cbe72cbe99 [2022-11-16 19:33:16,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:33:16,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:33:16,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:33:16,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:33:16,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:33:16,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-16 19:33:16,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/data/c9827721e/8f44e782121a45d98a4d2b486dfc97e3/FLAG827342903 [2022-11-16 19:33:17,927 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:33:17,927 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-16 19:33:18,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/data/c9827721e/8f44e782121a45d98a4d2b486dfc97e3/FLAG827342903 [2022-11-16 19:33:18,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/data/c9827721e/8f44e782121a45d98a4d2b486dfc97e3 [2022-11-16 19:33:18,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:33:18,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:33:18,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:33:18,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:33:18,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:33:18,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:33:18" (1/1) ... [2022-11-16 19:33:18,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0d95d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:18, skipping insertion in model container [2022-11-16 19:33:18,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:33:18" (1/1) ... [2022-11-16 19:33:18,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:33:18,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:33:26,582 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899162,899175] [2022-11-16 19:33:26,585 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899309,899322] [2022-11-16 19:33:26,586 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899448,899461] [2022-11-16 19:33:26,586 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899606,899619] [2022-11-16 19:33:26,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:33:26,695 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:33:27,671 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899162,899175] [2022-11-16 19:33:27,672 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899309,899322] [2022-11-16 19:33:27,672 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899448,899461] [2022-11-16 19:33:27,673 WARN L229 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_1ad3afe5-5060-4aa9-8371-73ef7d695640/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i[899606,899619] [2022-11-16 19:33:27,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:33:28,057 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:33:28,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28 WrapperNode [2022-11-16 19:33:28,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:33:28,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:33:28,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:33:28,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:33:28,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:28,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:29,140 INFO L138 Inliner]: procedures = 712, calls = 16193, calls flagged for inlining = 391, calls inlined = 342, statements flattened = 29690 [2022-11-16 19:33:29,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:33:29,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:33:29,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:33:29,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:33:29,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:29,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:29,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:29,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:30,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:30,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:30,437 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:30,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:30,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:33:30,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:33:30,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:33:30,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:33:30,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (1/1) ... [2022-11-16 19:33:30,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:33:30,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:33:30,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:33:30,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:33:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 19:33:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 19:33:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-16 19:33:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-16 19:33:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-16 19:33:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-16 19:33:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-16 19:33:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-16 19:33:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-16 19:33:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-16 19:33:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-16 19:33:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-16 19:33:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 19:33:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 19:33:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 19:33:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 19:33:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-16 19:33:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-16 19:33:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-16 19:33:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-16 19:33:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 19:33:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 19:33:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-16 19:33:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-16 19:33:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-16 19:33:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-16 19:33:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 19:33:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 19:33:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-16 19:33:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-16 19:33:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-16 19:33:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-16 19:33:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-16 19:33:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-16 19:33:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-16 19:33:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-16 19:33:30,839 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-16 19:33:30,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-16 19:33:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-16 19:33:30,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-16 19:33:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-16 19:33:30,841 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-16 19:33:30,841 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-16 19:33:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-16 19:33:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-16 19:33:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-16 19:33:30,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-16 19:33:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-16 19:33:30,843 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 19:33:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 19:33:30,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-16 19:33:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-16 19:33:30,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-16 19:33:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-16 19:33:30,844 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-16 19:33:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-16 19:33:30,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-16 19:33:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-16 19:33:30,845 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-16 19:33:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-16 19:33:30,845 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 19:33:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 19:33:30,845 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-16 19:33:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-16 19:33:30,846 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-16 19:33:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-16 19:33:30,846 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-16 19:33:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-16 19:33:30,846 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-16 19:33:30,847 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-16 19:33:30,847 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-16 19:33:30,847 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-16 19:33:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 19:33:30,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-16 19:33:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 19:33:30,848 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 19:33:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-16 19:33:30,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-16 19:33:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-16 19:33:30,849 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-16 19:33:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 19:33:30,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 19:33:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 19:33:30,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 19:33:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-16 19:33:30,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-16 19:33:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:33:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-16 19:33:30,852 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-16 19:33:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-16 19:33:30,852 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-16 19:33:30,853 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-16 19:33:30,853 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-16 19:33:30,853 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-16 19:33:30,853 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-16 19:33:30,853 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-16 19:33:30,853 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-16 19:33:30,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-16 19:33:30,854 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-16 19:33:30,854 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-16 19:33:30,854 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-16 19:33:30,855 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 19:33:30,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 19:33:30,855 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-16 19:33:30,856 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-16 19:33:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-16 19:33:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-16 19:33:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-16 19:33:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-16 19:33:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 19:33:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 19:33:30,861 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 19:33:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 19:33:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-16 19:33:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-16 19:33:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-16 19:33:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-16 19:33:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 19:33:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-16 19:33:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-16 19:33:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-16 19:33:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-16 19:33:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-16 19:33:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-16 19:33:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-16 19:33:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-16 19:33:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-16 19:33:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-16 19:33:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-16 19:33:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-16 19:33:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 19:33:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-16 19:33:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-16 19:33:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-16 19:33:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-16 19:33:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:33:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-16 19:33:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-16 19:33:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-16 19:33:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-16 19:33:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-16 19:33:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-16 19:33:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-16 19:33:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-16 19:33:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 19:33:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 19:33:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-16 19:33:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-16 19:33:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-16 19:33:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-16 19:33:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-16 19:33:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-16 19:33:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-16 19:33:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-16 19:33:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-16 19:33:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-16 19:33:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-16 19:33:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-16 19:33:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-16 19:33:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-16 19:33:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-16 19:33:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-16 19:33:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-16 19:33:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-16 19:33:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-16 19:33:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-16 19:33:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-16 19:33:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-16 19:33:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-16 19:33:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-16 19:33:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-16 19:33:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-16 19:33:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-16 19:33:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-16 19:33:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-16 19:33:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-16 19:33:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-16 19:33:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-16 19:33:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-16 19:33:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-16 19:33:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:33:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-16 19:33:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-16 19:33:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-16 19:33:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-16 19:33:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:33:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-16 19:33:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-16 19:33:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 19:33:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 19:33:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 19:33:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 19:33:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:33:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-16 19:33:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-16 19:33:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 19:33:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-16 19:33:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-16 19:33:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 19:33:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 19:33:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-16 19:33:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-16 19:33:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-16 19:33:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-16 19:33:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-16 19:33:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-16 19:33:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-16 19:33:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-16 19:33:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-16 19:33:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-16 19:33:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-16 19:33:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-16 19:33:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-16 19:33:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-16 19:33:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-16 19:33:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-16 19:33:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-16 19:33:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-16 19:33:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-16 19:33:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-16 19:33:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 19:33:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 19:33:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-16 19:33:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-16 19:33:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 19:33:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 19:33:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-16 19:33:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-16 19:33:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-16 19:33:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-16 19:33:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-16 19:33:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-16 19:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-16 19:33:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-16 19:33:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-16 19:33:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-16 19:33:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-16 19:33:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-16 19:33:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-16 19:33:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-16 19:33:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-16 19:33:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-16 19:33:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-16 19:33:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-16 19:33:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-16 19:33:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-16 19:33:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-16 19:33:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-16 19:33:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 19:33:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 19:33:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-16 19:33:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-16 19:33:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-16 19:33:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-16 19:33:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-16 19:33:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-16 19:33:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-16 19:33:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-16 19:33:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:33:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:33:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-16 19:33:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-16 19:33:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-16 19:33:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-16 19:33:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-16 19:33:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-16 19:33:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-16 19:33:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-16 19:33:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-16 19:33:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-16 19:33:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-16 19:33:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-16 19:33:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-16 19:33:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-16 19:33:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 19:33:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 19:33:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 19:33:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 19:33:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-16 19:33:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-16 19:33:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-16 19:33:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-16 19:33:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-16 19:33:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-16 19:33:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-16 19:33:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-16 19:33:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-16 19:33:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-16 19:33:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-16 19:33:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-16 19:33:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-16 19:33:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-16 19:33:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-16 19:33:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-16 19:33:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-16 19:33:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-16 19:33:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-16 19:33:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-16 19:33:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-16 19:33:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-16 19:33:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-16 19:33:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 19:33:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 19:33:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 19:33:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 19:33:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-16 19:33:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-16 19:33:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-16 19:33:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-16 19:33:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-16 19:33:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-16 19:33:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-16 19:33:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-16 19:33:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-16 19:33:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-16 19:33:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-16 19:33:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-16 19:33:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-16 19:33:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-16 19:33:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-16 19:33:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-16 19:33:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-16 19:33:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-16 19:33:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-16 19:33:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-16 19:33:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-16 19:33:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-16 19:33:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-16 19:33:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-16 19:33:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 19:33:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 19:33:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-16 19:33:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-16 19:33:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-16 19:33:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-16 19:33:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:33:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 19:33:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 19:33:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-16 19:33:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-16 19:33:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-16 19:33:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-16 19:33:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-16 19:33:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-16 19:33:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:33:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-16 19:33:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-16 19:33:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-16 19:33:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-16 19:33:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-16 19:33:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-16 19:33:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-16 19:33:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-16 19:33:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-16 19:33:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-16 19:33:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-16 19:33:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-16 19:33:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 19:33:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-16 19:33:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-16 19:33:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-16 19:33:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-16 19:33:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-16 19:33:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-16 19:33:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-16 19:33:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-16 19:33:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-16 19:33:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-16 19:33:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 19:33:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 19:33:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-16 19:33:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-16 19:33:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 19:33:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 19:33:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-16 19:33:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-16 19:33:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-16 19:33:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-16 19:33:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-16 19:33:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-16 19:33:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-16 19:33:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-16 19:33:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-16 19:33:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-16 19:33:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-16 19:33:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-16 19:33:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-16 19:33:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-16 19:33:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-16 19:33:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-16 19:33:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-16 19:33:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-16 19:33:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-16 19:33:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-16 19:33:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-16 19:33:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-16 19:33:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-16 19:33:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-16 19:33:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-16 19:33:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-16 19:33:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-16 19:33:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-16 19:33:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-16 19:33:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-16 19:33:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 19:33:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 19:33:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-16 19:33:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-16 19:33:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-16 19:33:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-16 19:33:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-16 19:33:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-16 19:33:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-16 19:33:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-16 19:33:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-16 19:33:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-16 19:33:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-16 19:33:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-16 19:33:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 19:33:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 19:33:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-16 19:33:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-16 19:33:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-16 19:33:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-16 19:33:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 19:33:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 19:33:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 19:33:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 19:33:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-16 19:33:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-16 19:33:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-16 19:33:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-16 19:33:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_20 [2022-11-16 19:33:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_20 [2022-11-16 19:33:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:33:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-16 19:33:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-16 19:33:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 19:33:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 19:33:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-16 19:33:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-16 19:33:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-16 19:33:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-16 19:33:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-16 19:33:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-16 19:33:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 19:33:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 19:33:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-16 19:33:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-16 19:33:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-16 19:33:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-16 19:33:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-16 19:33:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-16 19:33:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-16 19:33:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-16 19:33:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-16 19:33:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-16 19:33:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-16 19:33:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-16 19:33:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-16 19:33:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-16 19:33:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-16 19:33:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-16 19:33:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-16 19:33:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-16 19:33:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-16 19:33:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-16 19:33:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-16 19:33:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-16 19:33:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-16 19:33:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-16 19:33:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-16 19:33:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-16 19:33:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-16 19:33:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-16 19:33:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 19:33:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 19:33:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-16 19:33:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-16 19:33:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-16 19:33:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-16 19:33:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-16 19:33:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-16 19:33:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-16 19:33:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-16 19:33:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-16 19:33:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-16 19:33:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-16 19:33:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-16 19:33:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 19:33:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 19:33:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-16 19:33:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-16 19:33:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-16 19:33:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-16 19:33:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-16 19:33:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:33:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-16 19:33:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-16 19:33:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-16 19:33:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-16 19:33:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-16 19:33:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-16 19:33:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-16 19:33:33,538 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:33:33,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:33:35,090 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 19:34:39,257 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:34:51,034 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:34:51,034 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 19:34:51,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:34:51 BoogieIcfgContainer [2022-11-16 19:34:51,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:34:51,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:34:51,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:34:51,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:34:51,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:33:18" (1/3) ... [2022-11-16 19:34:51,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0ceba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:51, skipping insertion in model container [2022-11-16 19:34:51,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:33:28" (2/3) ... [2022-11-16 19:34:51,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0ceba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:51, skipping insertion in model container [2022-11-16 19:34:51,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:34:51" (3/3) ... [2022-11-16 19:34:51,078 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-16 19:34:51,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:34:51,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 19:34:51,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:34:51,278 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@28fff3ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:34:51,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 19:34:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 6545 states, 4181 states have (on average 1.3360440086103802) internal successors, (5586), 4288 states have internal predecessors, (5586), 2122 states have call successors, (2122), 242 states have call predecessors, (2122), 241 states have return successors, (2118), 2105 states have call predecessors, (2118), 2118 states have call successors, (2118) [2022-11-16 19:34:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 19:34:51,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:51,312 INFO L195 NwaCegarLoop]: 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] [2022-11-16 19:34:51,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:34:51,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:51,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1384012383, now seen corresponding path program 1 times [2022-11-16 19:34:51,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:51,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973448406] [2022-11-16 19:34:51,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:51,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 19:34:54,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:54,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973448406] [2022-11-16 19:34:54,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973448406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:54,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:54,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:34:54,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825286023] [2022-11-16 19:34:54,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:54,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:34:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:54,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:34:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:34:54,548 INFO L87 Difference]: Start difference. First operand has 6545 states, 4181 states have (on average 1.3360440086103802) internal successors, (5586), 4288 states have internal predecessors, (5586), 2122 states have call successors, (2122), 242 states have call predecessors, (2122), 241 states have return successors, (2118), 2105 states have call predecessors, (2118), 2118 states have call successors, (2118) 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) [2022-11-16 19:34:57,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:07,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:09,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:11,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:23,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:25,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:26,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:35:26,236 INFO L93 Difference]: Finished difference Result 17301 states and 25970 transitions. [2022-11-16 19:35:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:35:26,238 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 [2022-11-16 19:35:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:35:26,371 INFO L225 Difference]: With dead ends: 17301 [2022-11-16 19:35:26,372 INFO L226 Difference]: Without dead ends: 10728 [2022-11-16 19:35:26,441 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:35:26,444 INFO L413 NwaCegarLoop]: 10832 mSDtfsCounter, 6295 mSDsluCounter, 19787 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6297 SdHoareTripleChecker+Valid, 30619 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-11-16 19:35:26,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6297 Valid, 30619 Invalid, 2587 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 2581 Invalid, 5 Unknown, 0 Unchecked, 30.7s Time] [2022-11-16 19:35:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2022-11-16 19:35:27,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 10720. [2022-11-16 19:35:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10720 states, 6817 states have (on average 1.3281502127035352) internal successors, (9054), 6976 states have internal predecessors, (9054), 3477 states have call successors, (3477), 425 states have call predecessors, (3477), 424 states have return successors, (3475), 3460 states have call predecessors, (3475), 3475 states have call successors, (3475) [2022-11-16 19:35:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10720 states to 10720 states and 16006 transitions. [2022-11-16 19:35:27,680 INFO L78 Accepts]: Start accepts. Automaton has 10720 states and 16006 transitions. Word has length 34 [2022-11-16 19:35:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:35:27,681 INFO L495 AbstractCegarLoop]: Abstraction has 10720 states and 16006 transitions. [2022-11-16 19:35:27,682 INFO L496 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) [2022-11-16 19:35:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 10720 states and 16006 transitions. [2022-11-16 19:35:27,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 19:35:27,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:35:27,686 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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] [2022-11-16 19:35:27,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:35:27,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:35:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:35:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash -213519036, now seen corresponding path program 1 times [2022-11-16 19:35:27,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:35:27,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500208206] [2022-11-16 19:35:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:35:27,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:35:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:35:29,733 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-16 19:35:29,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:35:29,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500208206] [2022-11-16 19:35:29,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500208206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:35:29,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:35:29,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:35:29,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451137781] [2022-11-16 19:35:29,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:35:29,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:35:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:35:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:35:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:35:29,737 INFO L87 Difference]: Start difference. First operand 10720 states and 16006 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 19:35:32,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:37,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:44,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:46,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:56,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:59,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:59,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:35:59,619 INFO L93 Difference]: Finished difference Result 21694 states and 32410 transitions. [2022-11-16 19:35:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:35:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2022-11-16 19:35:59,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:35:59,721 INFO L225 Difference]: With dead ends: 21694 [2022-11-16 19:35:59,721 INFO L226 Difference]: Without dead ends: 10988 [2022-11-16 19:35:59,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:35:59,797 INFO L413 NwaCegarLoop]: 9052 mSDtfsCounter, 235 mSDsluCounter, 17959 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 114 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 27011 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:35:59,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 27011 Invalid, 2588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [114 Valid, 2469 Invalid, 5 Unknown, 0 Unchecked, 29.0s Time] [2022-11-16 19:35:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10988 states. [2022-11-16 19:36:00,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10988 to 10724. [2022-11-16 19:36:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10724 states, 6821 states have (on average 1.3279577774519866) internal successors, (9058), 6980 states have internal predecessors, (9058), 3477 states have call successors, (3477), 425 states have call predecessors, (3477), 424 states have return successors, (3475), 3460 states have call predecessors, (3475), 3475 states have call successors, (3475) [2022-11-16 19:36:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10724 states to 10724 states and 16010 transitions. [2022-11-16 19:36:00,667 INFO L78 Accepts]: Start accepts. Automaton has 10724 states and 16010 transitions. Word has length 85 [2022-11-16 19:36:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:00,669 INFO L495 AbstractCegarLoop]: Abstraction has 10724 states and 16010 transitions. [2022-11-16 19:36:00,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 19:36:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 10724 states and 16010 transitions. [2022-11-16 19:36:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 19:36:00,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:00,683 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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] [2022-11-16 19:36:00,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:36:00,683 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:00,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:00,686 INFO L85 PathProgramCache]: Analyzing trace with hash -388388391, now seen corresponding path program 1 times [2022-11-16 19:36:00,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:00,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101487662] [2022-11-16 19:36:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:00,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:03,172 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-16 19:36:03,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:03,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101487662] [2022-11-16 19:36:03,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101487662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:03,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:03,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:36:03,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541586064] [2022-11-16 19:36:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:03,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:36:03,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:03,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:36:03,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:36:03,178 INFO L87 Difference]: Start difference. First operand 10724 states and 16010 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 19:36:06,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:16,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:17,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:19,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:21,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:31,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:34,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:35,347 INFO L93 Difference]: Finished difference Result 11056 states and 16545 transitions. [2022-11-16 19:36:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:36:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2022-11-16 19:36:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:35,445 INFO L225 Difference]: With dead ends: 11056 [2022-11-16 19:36:35,446 INFO L226 Difference]: Without dead ends: 11054 [2022-11-16 19:36:35,457 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:36:35,460 INFO L413 NwaCegarLoop]: 10995 mSDtfsCounter, 6598 mSDsluCounter, 19989 mSDsCounter, 0 mSdLazyCounter, 2661 mSolverCounterSat, 63 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 30984 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2661 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-16 19:36:35,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6657 Valid, 30984 Invalid, 2729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2661 Invalid, 5 Unknown, 0 Unchecked, 31.6s Time] [2022-11-16 19:36:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11054 states. [2022-11-16 19:36:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11054 to 10724. [2022-11-16 19:36:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10724 states, 6821 states have (on average 1.3278111713824952) internal successors, (9057), 6980 states have internal predecessors, (9057), 3477 states have call successors, (3477), 425 states have call predecessors, (3477), 424 states have return successors, (3475), 3460 states have call predecessors, (3475), 3475 states have call successors, (3475) [2022-11-16 19:36:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10724 states to 10724 states and 16009 transitions. [2022-11-16 19:36:36,357 INFO L78 Accepts]: Start accepts. Automaton has 10724 states and 16009 transitions. Word has length 85 [2022-11-16 19:36:36,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:36,358 INFO L495 AbstractCegarLoop]: Abstraction has 10724 states and 16009 transitions. [2022-11-16 19:36:36,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 19:36:36,359 INFO L276 IsEmpty]: Start isEmpty. Operand 10724 states and 16009 transitions. [2022-11-16 19:36:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-16 19:36:36,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:36,377 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 19:36:36,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:36:36,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:36,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1664761245, now seen corresponding path program 1 times [2022-11-16 19:36:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:36,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174209939] [2022-11-16 19:36:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:36,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-16 19:36:39,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:39,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174209939] [2022-11-16 19:36:39,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174209939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:39,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:39,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:36:39,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80999929] [2022-11-16 19:36:39,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:39,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:36:39,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:36:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:36:39,433 INFO L87 Difference]: Start difference. First operand 10724 states and 16009 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 19:36:42,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:50,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:52,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:04,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:07,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:09,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:37:09,136 INFO L93 Difference]: Finished difference Result 15885 states and 23744 transitions. [2022-11-16 19:37:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:37:09,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 190 [2022-11-16 19:37:09,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:37:09,247 INFO L225 Difference]: With dead ends: 15885 [2022-11-16 19:37:09,247 INFO L226 Difference]: Without dead ends: 15883 [2022-11-16 19:37:09,266 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:37:09,267 INFO L413 NwaCegarLoop]: 10776 mSDtfsCounter, 7290 mSDsluCounter, 19807 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 81 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7349 SdHoareTripleChecker+Valid, 30583 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:37:09,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7349 Valid, 30583 Invalid, 2668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 2583 Invalid, 4 Unknown, 0 Unchecked, 29.1s Time] [2022-11-16 19:37:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15883 states. [2022-11-16 19:37:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15883 to 15346. [2022-11-16 19:37:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15346 states, 9774 states have (on average 1.328524657253939) internal successors, (12985), 9996 states have internal predecessors, (12985), 4954 states have call successors, (4954), 617 states have call predecessors, (4954), 616 states have return successors, (4952), 4932 states have call predecessors, (4952), 4952 states have call successors, (4952) [2022-11-16 19:37:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15346 states to 15346 states and 22891 transitions. [2022-11-16 19:37:10,547 INFO L78 Accepts]: Start accepts. Automaton has 15346 states and 22891 transitions. Word has length 190 [2022-11-16 19:37:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:37:10,549 INFO L495 AbstractCegarLoop]: Abstraction has 15346 states and 22891 transitions. [2022-11-16 19:37:10,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-16 19:37:10,550 INFO L276 IsEmpty]: Start isEmpty. Operand 15346 states and 22891 transitions. [2022-11-16 19:37:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-16 19:37:10,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:37:10,564 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 19:37:10,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:37:10,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:37:10,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:37:10,566 INFO L85 PathProgramCache]: Analyzing trace with hash 833490079, now seen corresponding path program 1 times [2022-11-16 19:37:10,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:37:10,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284613041] [2022-11-16 19:37:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:37:10,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:37:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:37:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-11-16 19:37:13,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:37:13,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284613041] [2022-11-16 19:37:13,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284613041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:37:13,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:37:13,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:37:13,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988723141] [2022-11-16 19:37:13,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:37:13,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:37:13,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:37:13,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:37:13,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:37:13,553 INFO L87 Difference]: Start difference. First operand 15346 states and 22891 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-16 19:37:16,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:19,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:23,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:26,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:38,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:41,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:43,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:37:43,119 INFO L93 Difference]: Finished difference Result 15389 states and 22944 transitions. [2022-11-16 19:37:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:37:43,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 243 [2022-11-16 19:37:43,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:37:43,233 INFO L225 Difference]: With dead ends: 15389 [2022-11-16 19:37:43,233 INFO L226 Difference]: Without dead ends: 15357 [2022-11-16 19:37:43,250 INFO L412 NwaCegarLoop]: 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 [2022-11-16 19:37:43,251 INFO L413 NwaCegarLoop]: 10585 mSDtfsCounter, 6860 mSDsluCounter, 19528 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 30113 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:37:43,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6860 Valid, 30113 Invalid, 2475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2471 Invalid, 4 Unknown, 0 Unchecked, 29.0s Time] [2022-11-16 19:37:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15357 states. [2022-11-16 19:37:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15357 to 15322. [2022-11-16 19:37:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15322 states, 9762 states have (on average 1.3285187461585741) internal successors, (12969), 9981 states have internal predecessors, (12969), 4942 states have call successors, (4942), 617 states have call predecessors, (4942), 616 states have return successors, (4940), 4922 states have call predecessors, (4940), 4940 states have call successors, (4940) [2022-11-16 19:37:44,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15322 states to 15322 states and 22851 transitions. [2022-11-16 19:37:44,470 INFO L78 Accepts]: Start accepts. Automaton has 15322 states and 22851 transitions. Word has length 243 [2022-11-16 19:37:44,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:37:44,472 INFO L495 AbstractCegarLoop]: Abstraction has 15322 states and 22851 transitions. [2022-11-16 19:37:44,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-16 19:37:44,473 INFO L276 IsEmpty]: Start isEmpty. Operand 15322 states and 22851 transitions. [2022-11-16 19:37:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-11-16 19:37:44,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:37:44,567 INFO L195 NwaCegarLoop]: trace histogram [14, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:37:44,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:37:44,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:37:44,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:37:44,568 INFO L85 PathProgramCache]: Analyzing trace with hash -513185906, now seen corresponding path program 1 times [2022-11-16 19:37:44,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:37:44,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662441777] [2022-11-16 19:37:44,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:37:44,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:37:45,380 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:37:45,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937789128] [2022-11-16 19:37:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:37:45,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:37:45,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:37:45,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:37:45,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:37:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:37:52,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 21681 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 19:37:52,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:37:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-11-16 19:37:52,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:37:52,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:37:52,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662441777] [2022-11-16 19:37:52,274 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:37:52,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937789128] [2022-11-16 19:37:52,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937789128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:37:52,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:37:52,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:37:52,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543241141] [2022-11-16 19:37:52,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:37:52,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:37:52,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:37:52,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:37:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:37:52,278 INFO L87 Difference]: Start difference. First operand 15322 states and 22851 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 3 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) [2022-11-16 19:37:54,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:56,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:02,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:04,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:13,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:38:14,087 INFO L93 Difference]: Finished difference Result 23172 states and 34746 transitions. [2022-11-16 19:38:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:38:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 3 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) Word has length 548 [2022-11-16 19:38:14,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:38:14,352 INFO L225 Difference]: With dead ends: 23172 [2022-11-16 19:38:14,353 INFO L226 Difference]: Without dead ends: 16658 [2022-11-16 19:38:14,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:38:14,395 INFO L413 NwaCegarLoop]: 10080 mSDtfsCounter, 1142 mSDsluCounter, 9188 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 19268 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:38:14,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 19268 Invalid, 1745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1740 Invalid, 4 Unknown, 0 Unchecked, 21.3s Time] [2022-11-16 19:38:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16658 states. [2022-11-16 19:38:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16658 to 15327. [2022-11-16 19:38:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15327 states, 9766 states have (on average 1.3284865861150932) internal successors, (12974), 9985 states have internal predecessors, (12974), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-16 19:38:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15327 states to 15327 states and 22858 transitions. [2022-11-16 19:38:15,577 INFO L78 Accepts]: Start accepts. Automaton has 15327 states and 22858 transitions. Word has length 548 [2022-11-16 19:38:15,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:38:15,579 INFO L495 AbstractCegarLoop]: Abstraction has 15327 states and 22858 transitions. [2022-11-16 19:38:15,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 3 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) [2022-11-16 19:38:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 15327 states and 22858 transitions. [2022-11-16 19:38:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-16 19:38:15,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:38:15,682 INFO L195 NwaCegarLoop]: trace histogram [17, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:38:15,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 19:38:15,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:38:15,896 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:38:15,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:38:15,897 INFO L85 PathProgramCache]: Analyzing trace with hash -750936378, now seen corresponding path program 1 times [2022-11-16 19:38:15,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:38:15,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32153664] [2022-11-16 19:38:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:38:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:38:16,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:38:16,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537279057] [2022-11-16 19:38:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:38:16,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:38:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:38:16,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:38:16,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:38:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:38:23,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 22157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:38:24,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:38:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-11-16 19:38:24,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:38:24,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:38:24,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32153664] [2022-11-16 19:38:24,084 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:38:24,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537279057] [2022-11-16 19:38:24,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537279057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:38:24,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:38:24,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:38:24,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656285195] [2022-11-16 19:38:24,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:38:24,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:38:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:38:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:38:24,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:38:24,088 INFO L87 Difference]: Start difference. First operand 15327 states and 22858 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-11-16 19:38:26,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:34,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:36,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:38,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:40,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:41,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:49,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:38:51,739 INFO L93 Difference]: Finished difference Result 27296 states and 40810 transitions. [2022-11-16 19:38:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:38:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 592 [2022-11-16 19:38:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:38:51,813 INFO L225 Difference]: With dead ends: 27296 [2022-11-16 19:38:51,813 INFO L226 Difference]: Without dead ends: 16179 [2022-11-16 19:38:51,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:38:51,877 INFO L413 NwaCegarLoop]: 9401 mSDtfsCounter, 1666 mSDsluCounter, 16814 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 113 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 26215 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-11-16 19:38:51,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 26215 Invalid, 2425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 2309 Invalid, 3 Unknown, 0 Unchecked, 26.9s Time] [2022-11-16 19:38:51,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16179 states. [2022-11-16 19:38:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16179 to 15331. [2022-11-16 19:38:52,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15331 states, 9770 states have (on average 1.3283520982599795) internal successors, (12978), 9989 states have internal predecessors, (12978), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-16 19:38:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15331 states to 15331 states and 22862 transitions. [2022-11-16 19:38:53,080 INFO L78 Accepts]: Start accepts. Automaton has 15331 states and 22862 transitions. Word has length 592 [2022-11-16 19:38:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:38:53,081 INFO L495 AbstractCegarLoop]: Abstraction has 15331 states and 22862 transitions. [2022-11-16 19:38:53,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-11-16 19:38:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 15331 states and 22862 transitions. [2022-11-16 19:38:53,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-16 19:38:53,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:38:53,191 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:38:53,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:38:53,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:38:53,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:38:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:38:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1304152228, now seen corresponding path program 1 times [2022-11-16 19:38:53,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:38:53,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870121907] [2022-11-16 19:38:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:38:53,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:38:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:38:54,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:38:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870121907] [2022-11-16 19:38:54,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 19:38:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6006435] [2022-11-16 19:38:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:38:54,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:38:54,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:38:54,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:38:54,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 19:39:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:02,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 22416 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:39:02,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:39:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2022-11-16 19:39:02,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:39:02,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6006435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:39:02,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:39:02,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:39:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072764341] [2022-11-16 19:39:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:39:02,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:39:02,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:39:02,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:39:02,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:39:02,371 INFO L87 Difference]: Start difference. First operand 15331 states and 22862 transitions. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-16 19:39:05,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:14,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:15,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:18,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:28,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:31,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:32,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:39:32,453 INFO L93 Difference]: Finished difference Result 26800 states and 40039 transitions. [2022-11-16 19:39:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:39:32,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 610 [2022-11-16 19:39:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:39:32,519 INFO L225 Difference]: With dead ends: 26800 [2022-11-16 19:39:32,520 INFO L226 Difference]: Without dead ends: 15679 [2022-11-16 19:39:32,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:39:32,573 INFO L413 NwaCegarLoop]: 9223 mSDtfsCounter, 343 mSDsluCounter, 18051 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 123 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 27274 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:39:32,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 27274 Invalid, 2617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2489 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2022-11-16 19:39:32,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15679 states. [2022-11-16 19:39:33,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15679 to 15335. [2022-11-16 19:39:33,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15335 states, 9774 states have (on average 1.3282177204829138) internal successors, (12982), 9993 states have internal predecessors, (12982), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-16 19:39:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15335 states to 15335 states and 22866 transitions. [2022-11-16 19:39:33,600 INFO L78 Accepts]: Start accepts. Automaton has 15335 states and 22866 transitions. Word has length 610 [2022-11-16 19:39:33,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:39:33,600 INFO L495 AbstractCegarLoop]: Abstraction has 15335 states and 22866 transitions. [2022-11-16 19:39:33,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-16 19:39:33,601 INFO L276 IsEmpty]: Start isEmpty. Operand 15335 states and 22866 transitions. [2022-11-16 19:39:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-11-16 19:39:33,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:39:33,679 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:39:33,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:39:33,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:39:33,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:39:33,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:39:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1810262751, now seen corresponding path program 1 times [2022-11-16 19:39:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:39:33,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203048838] [2022-11-16 19:39:33,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:33,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:39:35,075 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:39:35,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070090571] [2022-11-16 19:39:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:35,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:39:35,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:39:35,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:39:35,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:39:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:42,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 22462 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:39:42,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:39:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-16 19:39:42,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:39:42,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:39:42,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203048838] [2022-11-16 19:39:42,767 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:39:42,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070090571] [2022-11-16 19:39:42,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070090571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:39:42,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:39:42,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:39:42,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278045225] [2022-11-16 19:39:42,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:39:42,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:39:42,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:39:42,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:39:42,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:39:42,770 INFO L87 Difference]: Start difference. First operand 15335 states and 22866 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-16 19:39:45,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:54,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:56,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:58,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:08,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:10,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:40:12,053 INFO L93 Difference]: Finished difference Result 27292 states and 40797 transitions. [2022-11-16 19:40:12,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:40:12,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 613 [2022-11-16 19:40:12,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:40:12,220 INFO L225 Difference]: With dead ends: 27292 [2022-11-16 19:40:12,220 INFO L226 Difference]: Without dead ends: 16167 [2022-11-16 19:40:12,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:40:12,261 INFO L413 NwaCegarLoop]: 9427 mSDtfsCounter, 353 mSDsluCounter, 18399 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 109 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 27826 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:40:12,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 27826 Invalid, 2701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 2588 Invalid, 4 Unknown, 0 Unchecked, 28.5s Time] [2022-11-16 19:40:12,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16167 states. [2022-11-16 19:40:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16167 to 15339. [2022-11-16 19:40:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15339 states, 9778 states have (on average 1.3280834526488035) internal successors, (12986), 9997 states have internal predecessors, (12986), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-16 19:40:13,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15339 states to 15339 states and 22870 transitions. [2022-11-16 19:40:13,107 INFO L78 Accepts]: Start accepts. Automaton has 15339 states and 22870 transitions. Word has length 613 [2022-11-16 19:40:13,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:40:13,108 INFO L495 AbstractCegarLoop]: Abstraction has 15339 states and 22870 transitions. [2022-11-16 19:40:13,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-16 19:40:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand 15339 states and 22870 transitions. [2022-11-16 19:40:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-16 19:40:13,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:40:13,166 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 7, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:40:13,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:40:13,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 19:40:13,372 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:40:13,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:40:13,373 INFO L85 PathProgramCache]: Analyzing trace with hash -543706934, now seen corresponding path program 1 times [2022-11-16 19:40:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:40:13,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360979178] [2022-11-16 19:40:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:40:13,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:40:14,449 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:40:14,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294954339] [2022-11-16 19:40:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:40:14,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:40:14,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:40:14,451 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:40:14,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 19:40:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:40:22,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 22575 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:40:22,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:40:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-11-16 19:40:22,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:40:22,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:40:22,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360979178] [2022-11-16 19:40:22,403 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:40:22,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294954339] [2022-11-16 19:40:22,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294954339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:40:22,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:40:22,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:40:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795880097] [2022-11-16 19:40:22,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:40:22,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:40:22,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:40:22,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:40:22,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:40:22,406 INFO L87 Difference]: Start difference. First operand 15339 states and 22870 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-16 19:40:25,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:35,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:37,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:43,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:49,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:51,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:53,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:40:54,449 INFO L93 Difference]: Finished difference Result 26816 states and 40055 transitions. [2022-11-16 19:40:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:40:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 632 [2022-11-16 19:40:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:40:54,508 INFO L225 Difference]: With dead ends: 26816 [2022-11-16 19:40:54,508 INFO L226 Difference]: Without dead ends: 15687 [2022-11-16 19:40:54,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 630 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:40:54,547 INFO L413 NwaCegarLoop]: 9228 mSDtfsCounter, 343 mSDsluCounter, 18050 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 123 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 27278 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-11-16 19:40:54,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 27278 Invalid, 2620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2492 Invalid, 5 Unknown, 0 Unchecked, 31.4s Time] [2022-11-16 19:40:54,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15687 states. [2022-11-16 19:40:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15687 to 15343. [2022-11-16 19:40:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15343 states, 9782 states have (on average 1.3279492946227764) internal successors, (12990), 10001 states have internal predecessors, (12990), 4943 states have call successors, (4943), 617 states have call predecessors, (4943), 616 states have return successors, (4941), 4923 states have call predecessors, (4941), 4941 states have call successors, (4941) [2022-11-16 19:40:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15343 states to 15343 states and 22874 transitions. [2022-11-16 19:40:55,334 INFO L78 Accepts]: Start accepts. Automaton has 15343 states and 22874 transitions. Word has length 632 [2022-11-16 19:40:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:40:55,335 INFO L495 AbstractCegarLoop]: Abstraction has 15343 states and 22874 transitions. [2022-11-16 19:40:55,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-16 19:40:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 15343 states and 22874 transitions. [2022-11-16 19:40:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2022-11-16 19:40:55,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:40:55,399 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 7, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:40:55,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 19:40:55,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:40:55,624 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:40:55,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:40:55,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1148742932, now seen corresponding path program 1 times [2022-11-16 19:40:55,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:40:55,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616054054] [2022-11-16 19:40:55,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:40:55,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:40:56,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:40:56,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1026332929] [2022-11-16 19:40:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:40:56,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:40:56,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:40:56,596 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:40:56,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ad3afe5-5060-4aa9-8371-73ef7d695640/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 19:41:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:41:05,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 22643 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:41:05,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:41:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 138 proven. 5 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-11-16 19:41:05,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:41:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-16 19:41:06,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:41:06,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616054054] [2022-11-16 19:41:06,225 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:41:06,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026332929] [2022-11-16 19:41:06,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026332929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:41:06,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1891526051] [2022-11-16 19:41:06,275 INFO L159 IcfgInterpreter]: Started Sifa with 464 locations of interest [2022-11-16 19:41:06,275 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:41:06,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:41:06,287 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:41:06,288 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs