./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:03:08,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:03:08,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:03:08,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:03:08,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:03:08,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:03:08,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:03:08,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:03:08,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:03:08,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:03:08,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:03:08,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:03:08,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:03:08,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:03:08,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:03:08,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:03:08,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:03:08,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:03:08,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:03:08,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:03:08,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:03:08,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:03:08,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:03:08,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:03:08,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:03:08,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:03:08,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:03:08,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:03:08,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:03:08,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:03:08,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:03:08,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:03:08,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:03:08,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:03:08,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:03:08,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:03:08,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:03:08,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:03:08,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:03:08,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:03:08,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:03:08,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:03:08,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:03:08,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:03:08,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:03:08,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:03:08,329 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:03:08,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:03:08,330 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:03:08,330 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:03:08,336 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:03:08,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:03:08,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:03:08,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:03:08,338 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:03:08,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:03:08,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:03:08,339 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:03:08,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:03:08,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:03:08,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:03:08,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:03:08,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:03:08,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:03:08,341 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:03:08,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:03:08,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:03:08,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:03:08,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:03:08,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:03:08,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:03:08,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:03:08,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:03:08,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:03:08,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:03:08,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:03:08,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:03:08,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:03:08,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:03:08,345 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd [2021-11-19 14:03:08,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:03:08,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:03:08,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:03:08,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:03:08,699 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:03:08,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-19 14:03:08,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/9ea4ce827/7edecf4f3c3f4df6ba15ad90df960a1e/FLAGdb37a02f0 [2021-11-19 14:03:10,028 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:03:10,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-19 14:03:10,116 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/9ea4ce827/7edecf4f3c3f4df6ba15ad90df960a1e/FLAGdb37a02f0 [2021-11-19 14:03:10,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/9ea4ce827/7edecf4f3c3f4df6ba15ad90df960a1e [2021-11-19 14:03:10,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:03:10,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:03:10,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:03:10,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:03:10,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:03:10,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:10" (1/1) ... [2021-11-19 14:03:10,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327868cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:10, skipping insertion in model container [2021-11-19 14:03:10,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:10" (1/1) ... [2021-11-19 14:03:10,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:03:10,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:03:13,378 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:13,402 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,569 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,573 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,574 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,575 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,589 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,610 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,611 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,612 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,612 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,613 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,614 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,614 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,616 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,616 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,617 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,618 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,618 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,619 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,620 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,620 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,621 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,622 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,623 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,623 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,624 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,625 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,626 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,627 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,627 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,628 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,629 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,629 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,630 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,630 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,631 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,632 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,632 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,633 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,633 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,635 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,636 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,637 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,637 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,638 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,639 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,641 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,642 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,643 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,643 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,644 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,644 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,645 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,645 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,646 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,646 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,650 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,651 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,652 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,652 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,653 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,653 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,654 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,654 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,655 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,655 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,663 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,664 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,665 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,665 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,666 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,666 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,667 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,668 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,668 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,669 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,669 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,670 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,670 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,671 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,672 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,672 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,673 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,673 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,674 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,675 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,675 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,676 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,676 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,677 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,677 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,679 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,679 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,679 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,680 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,681 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,681 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,682 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,683 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,683 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,684 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,685 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,685 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,686 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,686 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,687 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,688 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,689 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,689 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,690 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,690 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,691 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,692 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,692 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,693 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,694 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,694 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,694 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,695 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,696 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,696 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,697 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,697 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,698 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,699 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,699 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,700 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,700 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,701 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,701 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,702 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,703 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,703 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,704 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,705 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,705 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,706 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,706 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,707 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,707 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,708 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,708 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,709 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,710 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,710 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,711 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,711 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,712 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,712 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,713 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,713 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,714 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,715 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,715 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,716 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,716 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,717 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,718 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,718 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,718 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,719 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,720 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,720 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,721 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,721 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,722 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,722 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,723 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,723 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,724 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,724 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,725 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,726 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,726 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,727 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,727 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,728 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,728 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,729 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,729 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,730 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,731 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,731 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,732 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,732 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,733 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,733 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,734 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,734 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,735 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,735 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,736 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,736 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,737 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,737 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,737 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,738 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,739 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,739 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,740 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,740 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,740 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,741 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,741 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,742 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,743 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,743 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,743 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,744 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,745 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,745 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,746 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,746 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,747 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,748 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,748 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,748 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,749 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,750 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,750 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,751 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,751 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,752 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,753 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,753 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,753 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,754 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,755 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,755 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,756 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,756 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,757 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,758 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,758 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,758 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,759 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,760 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,760 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,763 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,763 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,764 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,764 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,765 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,765 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,766 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,766 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,767 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,783 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,784 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,785 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,785 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,787 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,788 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,788 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,789 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,789 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,790 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,790 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,791 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,834 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,834 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,835 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,835 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,835 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,839 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,840 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,840 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,840 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,843 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,843 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,843 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,844 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,845 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,845 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,846 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,847 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,847 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,848 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,848 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,849 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,850 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,850 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,850 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,852 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,856 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,857 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,858 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,858 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,859 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,859 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,860 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,860 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,861 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,861 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,862 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,863 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,863 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,863 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,864 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,864 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,865 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,866 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,866 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,866 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,867 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,868 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,868 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,869 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,869 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,870 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,870 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,871 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,871 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,872 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,872 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,873 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,873 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,874 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,874 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,875 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,875 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,876 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,876 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,877 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,877 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,878 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,878 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,879 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,879 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,880 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,880 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,881 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,881 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,882 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,882 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,883 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,883 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,884 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,885 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,885 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,886 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,886 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,886 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,887 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,888 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,888 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,891 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,893 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,893 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,894 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,895 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,895 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,895 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,896 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,897 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,897 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,898 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,898 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,899 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,899 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,900 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,900 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,901 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,901 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,901 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,904 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,905 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,905 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,906 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,906 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,907 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,907 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,908 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,908 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,909 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,910 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,918 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,919 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,919 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,920 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,920 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,920 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,921 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,930 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,931 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,932 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,933 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,940 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,940 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,941 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,942 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,942 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,942 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,943 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,943 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,944 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,945 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,945 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,946 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,946 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,947 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,947 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,948 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,948 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:14,949 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,021 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,175 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,176 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,617 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,623 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,627 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,628 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:15,628 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,019 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,073 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,084 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,094 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,105 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,117 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,118 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,118 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,135 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,482 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,482 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,640 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,641 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,690 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,704 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,706 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,764 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,788 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:16,802 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,160 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,161 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,162 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,192 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,193 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,193 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,195 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,205 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,218 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,229 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,292 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,308 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,309 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,310 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,311 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,311 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,706 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,787 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,814 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,877 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,939 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,940 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:17,941 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,093 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,093 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,094 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,094 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,095 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,095 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,096 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,097 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,097 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,098 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,098 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,099 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,099 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,100 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,102 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,103 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,106 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,107 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,107 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,108 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,114 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,115 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,115 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,116 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,116 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,117 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,118 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,118 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,118 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,119 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,120 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,120 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,121 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,122 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,126 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,127 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,127 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,130 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,130 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,288 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,290 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,420 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,423 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,430 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:18,627 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,111 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,111 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,125 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,126 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,161 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,161 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,172 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,173 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,186 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,187 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,187 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,188 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,189 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,189 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,221 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,221 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,222 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,223 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,243 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,243 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,244 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,264 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,265 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,265 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,268 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,290 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,290 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,291 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,292 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,294 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,294 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,294 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,295 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,296 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,318 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,318 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,319 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,322 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,334 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,377 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,378 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,378 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,389 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,390 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,390 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,391 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,391 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,393 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,405 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,406 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,406 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,409 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,429 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,430 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,431 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,499 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:19,499 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,016 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,020 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,027 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,041 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,042 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,045 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,048 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,051 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,227 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,262 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,263 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,264 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,267 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,268 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,283 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,284 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,285 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,286 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,288 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,290 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,292 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,293 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,293 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,496 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,518 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:03:20,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-11-19 14:03:21,101 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:03:21,157 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:03:21,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@467dfbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21, skipping insertion in model container [2021-11-19 14:03:21,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:03:21,158 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:03:21,161 INFO L158 Benchmark]: Toolchain (without parser) took 10547.66ms. Allocated memory was 125.8MB in the beginning and 239.1MB in the end (delta: 113.2MB). Free memory was 80.9MB in the beginning and 108.8MB in the end (delta: -27.9MB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. [2021-11-19 14:03:21,161 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory was 102.6MB in the beginning and 102.5MB in the end (delta: 87.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:03:21,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 10545.33ms. Allocated memory was 125.8MB in the beginning and 239.1MB in the end (delta: 113.2MB). Free memory was 80.5MB in the beginning and 108.8MB in the end (delta: -28.3MB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. [2021-11-19 14:03:21,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory was 102.6MB in the beginning and 102.5MB in the end (delta: 87.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 10545.33ms. Allocated memory was 125.8MB in the beginning and 239.1MB in the end (delta: 113.2MB). Free memory was 80.5MB in the beginning and 108.8MB in the end (delta: -28.3MB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5259]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:03:23,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:03:23,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:03:23,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:03:23,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:03:23,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:03:23,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:03:23,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:03:23,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:03:23,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:03:23,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:03:23,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:03:23,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:03:23,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:03:23,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:03:23,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:03:23,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:03:23,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:03:23,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:03:23,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:03:23,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:03:23,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:03:23,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:03:23,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:03:23,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:03:23,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:03:23,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:03:23,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:03:23,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:03:23,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:03:23,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:03:23,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:03:23,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:03:23,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:03:23,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:03:23,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:03:23,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:03:23,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:03:23,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:03:23,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:03:23,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:03:23,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:03:23,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:03:23,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:03:23,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:03:23,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:03:23,565 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:03:23,566 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:03:23,566 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:03:23,566 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:03:23,566 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:03:23,567 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:03:23,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:03:23,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:03:23,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:03:23,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:03:23,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:03:23,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:03:23,571 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:03:23,571 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:03:23,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:03:23,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:03:23,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:03:23,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:03:23,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:03:23,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:03:23,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:03:23,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:03:23,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:03:23,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:03:23,573 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:03:23,574 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:23,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:03:23,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:03:23,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:03:23,575 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd [2021-11-19 14:03:23,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:03:23,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:03:23,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:03:23,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:03:23,969 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:03:23,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-19 14:03:24,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/877dd9f9a/5f98d3baf55c4743a293a603913493ee/FLAG96d7552ac [2021-11-19 14:03:25,428 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:03:25,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-19 14:03:25,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/877dd9f9a/5f98d3baf55c4743a293a603913493ee/FLAG96d7552ac [2021-11-19 14:03:26,007 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/data/877dd9f9a/5f98d3baf55c4743a293a603913493ee [2021-11-19 14:03:26,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:03:26,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:03:26,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:03:26,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:03:26,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:03:26,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:26" (1/1) ... [2021-11-19 14:03:26,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3917bd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:26, skipping insertion in model container [2021-11-19 14:03:26,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:26" (1/1) ... [2021-11-19 14:03:26,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:03:26,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:03:35,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-11-19 14:03:36,429 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:03:36,469 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:03:36,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:03:37,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-11-19 14:03:37,681 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:03:37,708 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:03:39,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-11-19 14:03:39,213 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:03:39,747 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:03:39,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39 WrapperNode [2021-11-19 14:03:39,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:03:39,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:03:39,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:03:39,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:03:39,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:40,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:40,392 INFO L137 Inliner]: procedures = 920, calls = 9946, calls flagged for inlining = 323, calls inlined = 188, statements flattened = 12310 [2021-11-19 14:03:40,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:03:40,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:03:40,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:03:40,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:03:40,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:40,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:40,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:40,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:40,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:41,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:41,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:41,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:03:41,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:03:41,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:03:41,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:03:41,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (1/1) ... [2021-11-19 14:03:41,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:03:41,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:03:41,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:03:41,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:03:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM_page [2021-11-19 14:03:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM_page [2021-11-19 14:03:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-19 14:03:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2021-11-19 14:03:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2021-11-19 14:03:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_status_to_errno [2021-11-19 14:03:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_status_to_errno [2021-11-19 14:03:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icms [2021-11-19 14:03:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icms [2021-11-19 14:03:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:03:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:03:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:03:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:03:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:03:41,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:03:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_key [2021-11-19 14:03:41,250 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_key [2021-11-19 14:03:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure key_to_hw_index [2021-11-19 14:03:41,250 INFO L138 BoogieDeclarations]: Found implementation of procedure key_to_hw_index [2021-11-19 14:03:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:03:41,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:03:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-19 14:03:41,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-19 14:03:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:03:41,251 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:03:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_icm [2021-11-19 14:03:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_icm [2021-11-19 14:03:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:03:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:03:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uarc_virt [2021-11-19 14:03:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uarc_virt [2021-11-19 14:03:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2021-11-19 14:03:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2021-11-19 14:03:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:03:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:03:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_ah [2021-11-19 14:03:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_ah [2021-11-19 14:03:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:03:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:03:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_zero [2021-11-19 14:03:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_zero [2021-11-19 14:03:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_cleanup [2021-11-19 14:03:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_cleanup [2021-11-19 14:03:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_device [2021-11-19 14:03:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_device [2021-11-19 14:03:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:03:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:03:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure ib_query_port [2021-11-19 14:03:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_query_port [2021-11-19 14:03:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_region [2021-11-19 14:03:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_region [2021-11-19 14:03:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:03:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:03:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-19 14:03:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-19 14:03:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_pcie_cap [2021-11-19 14:03:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_pcie_cap [2021-11-19 14:03:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CLOSE_IB [2021-11-19 14:03:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CLOSE_IB [2021-11-19 14:03:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure clear_page [2021-11-19 14:03:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_page [2021-11-19 14:03:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_alloc [2021-11-19 14:03:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_alloc [2021-11-19 14:03:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_init_one [2021-11-19 14:03:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_init_one [2021-11-19 14:03:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_create_eq [2021-11-19 14:03:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_create_eq [2021-11-19 14:03:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt [2021-11-19 14:03:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt [2021-11-19 14:03:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm_table [2021-11-19 14:03:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm_table [2021-11-19 14:03:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_catas_cleanup [2021-11-19 14:03:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_catas_cleanup [2021-11-19 14:03:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure hw_index_to_key [2021-11-19 14:03:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_index_to_key [2021-11-19 14:03:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 14:03:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 14:03:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64_raw [2021-11-19 14:03:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64_raw [2021-11-19 14:03:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:03:41,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:03:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_use_polling [2021-11-19 14:03:41,265 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_use_polling [2021-11-19 14:03:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-19 14:03:41,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-19 14:03:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm_table [2021-11-19 14:03:41,266 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm_table [2021-11-19 14:03:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:03:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt_range [2021-11-19 14:03:41,267 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt_range [2021-11-19 14:03:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 14:03:41,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 14:03:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:03:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:03:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-19 14:03:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-19 14:03:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:03:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 14:03:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 14:03:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_free [2021-11-19 14:03:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_free [2021-11-19 14:03:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_cleanup [2021-11-19 14:03:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_cleanup [2021-11-19 14:03:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_eq_req_not [2021-11-19 14:03:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_eq_req_not [2021-11-19 14:03:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2021-11-19 14:03:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2021-11-19 14:03:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:03:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:03:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_cleanup [2021-11-19 14:03:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_cleanup [2021-11-19 14:03:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_eq_table [2021-11-19 14:03:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_eq_table [2021-11-19 14:03:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:03:41,276 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:03:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:03:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:03:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:03:41,279 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:03:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:03:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:03:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:03:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:03:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:03:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_av_table [2021-11-19 14:03:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_av_table [2021-11-19 14:03:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm [2021-11-19 14:03:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm [2021-11-19 14:03:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_alloc_mtt [2021-11-19 14:03:41,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_alloc_mtt [2021-11-19 14:03:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2021-11-19 14:03:41,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2021-11-19 14:03:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:03:41,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:03:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-19 14:03:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-19 14:03:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_is_memfree [2021-11-19 14:03:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_is_memfree [2021-11-19 14:03:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_eq_req_not [2021-11-19 14:03:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_eq_req_not [2021-11-19 14:03:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM [2021-11-19 14:03:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM [2021-11-19 14:03:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:03:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:03:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure set_eqe_hw [2021-11-19 14:03:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure set_eqe_hw [2021-11-19 14:03:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-19 14:03:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-19 14:03:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 14:03:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 14:03:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:03:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:03:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:03:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_update_rate [2021-11-19 14:03:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_update_rate [2021-11-19 14:03:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:03:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM [2021-11-19 14:03:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM [2021-11-19 14:03:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_init [2021-11-19 14:03:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_init [2021-11-19 14:03:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:03:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:03:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:03:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:03:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_uar_table [2021-11-19 14:03:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_uar_table [2021-11-19 14:03:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-19 14:03:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-19 14:03:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:03:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:03:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_addr [2021-11-19 14:03:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_addr [2021-11-19 14:03:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-19 14:03:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-19 14:03:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-19 14:03:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-19 14:03:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:03:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:03:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-19 14:03:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-19 14:03:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mtt [2021-11-19 14:03:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mtt [2021-11-19 14:03:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure go_bit [2021-11-19 14:03:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure go_bit [2021-11-19 14:03:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free [2021-11-19 14:03:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free [2021-11-19 14:03:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:03:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2021-11-19 14:03:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2021-11-19 14:03:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:03:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:03:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:03:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 14:03:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 14:03:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:03:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:03:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mthca_device_mutex [2021-11-19 14:03:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mthca_device_mutex [2021-11-19 14:03:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SW2HW_MPT [2021-11-19 14:03:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SW2HW_MPT [2021-11-19 14:03:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure pcie_capability_write_word [2021-11-19 14:03:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pcie_capability_write_word [2021-11-19 14:03:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_irqs [2021-11-19 14:03:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_irqs [2021-11-19 14:03:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mr_table [2021-11-19 14:03:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mr_table [2021-11-19 14:03:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure __be64_to_cpup [2021-11-19 14:03:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __be64_to_cpup [2021-11-19 14:03:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_GET [2021-11-19 14:03:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-19 14:03:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-11-19 14:03:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2021-11-19 14:03:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2021-11-19 14:03:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_notrans [2021-11-19 14:03:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_notrans [2021-11-19 14:03:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2021-11-19 14:03:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2021-11-19 14:03:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-19 14:03:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-19 14:03:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_put [2021-11-19 14:03:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_put [2021-11-19 14:03:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc [2021-11-19 14:03:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc [2021-11-19 14:03:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64 [2021-11-19 14:03:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64 [2021-11-19 14:03:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-19 14:03:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-19 14:03:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_imm [2021-11-19 14:03:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_imm [2021-11-19 14:03:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mcg_table [2021-11-19 14:03:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mcg_table [2021-11-19 14:03:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_qp_table [2021-11-19 14:03:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_qp_table [2021-11-19 14:03:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:03:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:03:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_device [2021-11-19 14:03:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_device [2021-11-19 14:03:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_mad_agent [2021-11-19 14:03:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_mad_agent [2021-11-19 14:03:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-19 14:03:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-19 14:03:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-19 14:03:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-19 14:03:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_INIT_HCA [2021-11-19 14:03:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_INIT_HCA [2021-11-19 14:03:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_hw_index_to_key [2021-11-19 14:03:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_hw_index_to_key [2021-11-19 14:03:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:03:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:03:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:03:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:03:41,312 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-11-19 14:03:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-11-19 14:03:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_cq_table [2021-11-19 14:03:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_cq_table [2021-11-19 14:03:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_cleanup [2021-11-19 14:03:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_cleanup [2021-11-19 14:03:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:03:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:03:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_close_hca [2021-11-19 14:03:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_close_hca [2021-11-19 14:03:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_EQ [2021-11-19 14:03:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_EQ [2021-11-19 14:03:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure down [2021-11-19 14:03:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2021-11-19 14:03:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-19 14:03:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-19 14:03:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAD_IFC [2021-11-19 14:03:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAD_IFC [2021-11-19 14:03:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_cmd [2021-11-19 14:03:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_cmd [2021-11-19 14:03:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-19 14:03:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-19 14:03:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:03:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2021-11-19 14:03:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2021-11-19 14:03:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_eq [2021-11-19 14:03:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_eq [2021-11-19 14:03:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:03:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:03:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:03:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:03:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_alloc [2021-11-19 14:03:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_alloc [2021-11-19 14:03:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mailbox [2021-11-19 14:03:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mailbox [2021-11-19 14:03:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-19 14:03:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-19 14:03:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-19 14:03:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-19 14:03:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_DISABLE_LAM [2021-11-19 14:03:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_DISABLE_LAM [2021-11-19 14:03:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 14:03:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 14:03:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-19 14:03:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-19 14:03:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_alloc [2021-11-19 14:03:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_alloc [2021-11-19 14:03:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_empty [2021-11-19 14:03:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_empty [2021-11-19 14:03:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mthca_device_mutex [2021-11-19 14:03:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mthca_device_mutex [2021-11-19 14:03:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_setup_hca [2021-11-19 14:03:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_setup_hca [2021-11-19 14:03:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:03:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:03:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc [2021-11-19 14:03:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc [2021-11-19 14:03:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CONF_SPECIAL_QP [2021-11-19 14:03:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CONF_SPECIAL_QP [2021-11-19 14:03:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_reg [2021-11-19 14:03:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_reg [2021-11-19 14:03:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_check_profile_val [2021-11-19 14:03:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_check_profile_val [2021-11-19 14:03:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_sg [2021-11-19 14:03:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_sg [2021-11-19 14:03:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_FA [2021-11-19 14:03:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_FA [2021-11-19 14:03:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_free [2021-11-19 14:03:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_free [2021-11-19 14:03:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-19 14:03:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-19 14:03:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:03:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:03:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt_size [2021-11-19 14:03:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt_size [2021-11-19 14:03:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:03:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure dma_get_cache_alignment [2021-11-19 14:03:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_get_cache_alignment [2021-11-19 14:03:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mr [2021-11-19 14:03:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mr [2021-11-19 14:03:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mailbox [2021-11-19 14:03:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mailbox [2021-11-19 14:03:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 14:03:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 14:03:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:03:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:03:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:03:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_dev_lim [2021-11-19 14:03:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_dev_lim [2021-11-19 14:03:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2021-11-19 14:03:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2021-11-19 14:03:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_hw_index_to_key [2021-11-19 14:03:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_hw_index_to_key [2021-11-19 14:03:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_QUERY_FW [2021-11-19 14:03:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_QUERY_FW [2021-11-19 14:03:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-19 14:03:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-19 14:03:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 14:03:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 14:03:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SYS_DIS [2021-11-19 14:03:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SYS_DIS [2021-11-19 14:03:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_init [2021-11-19 14:03:41,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_init [2021-11-19 14:03:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:03:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_box [2021-11-19 14:03:41,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_box [2021-11-19 14:03:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:03:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:03:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:03:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:03:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-11-19 14:03:41,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-11-19 14:03:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-19 14:03:41,329 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-19 14:03:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_make_profile [2021-11-19 14:03:41,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_make_profile [2021-11-19 14:03:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2021-11-19 14:03:41,330 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2021-11-19 14:03:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 14:03:41,330 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 14:03:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unregister_device [2021-11-19 14:03:41,331 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unregister_device [2021-11-19 14:03:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_key_to_hw_index [2021-11-19 14:03:41,331 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_key_to_hw_index [2021-11-19 14:03:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-19 14:03:41,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-19 14:03:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 14:03:41,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 14:03:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-19 14:03:41,332 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-19 14:03:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-19 14:03:41,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-19 14:03:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-19 14:03:41,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-19 14:03:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:03:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:03:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:03:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:03:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:03:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_find [2021-11-19 14:03:41,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_find [2021-11-19 14:03:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm [2021-11-19 14:03:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm [2021-11-19 14:03:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_size [2021-11-19 14:03:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_size [2021-11-19 14:03:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 14:03:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 14:03:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:03:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 14:03:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-19 14:03:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-19 14:03:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_srq_table [2021-11-19 14:03:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_srq_table [2021-11-19 14:03:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_poll [2021-11-19 14:03:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_poll [2021-11-19 14:03:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM_AUX [2021-11-19 14:03:41,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM_AUX [2021-11-19 14:03:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2021-11-19 14:03:41,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2021-11-19 14:03:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_wait [2021-11-19 14:03:41,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_wait [2021-11-19 14:03:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_phys [2021-11-19 14:03:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_phys [2021-11-19 14:03:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_sg [2021-11-19 14:03:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_sg [2021-11-19 14:03:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:03:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:03:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure get_eqe [2021-11-19 14:03:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eqe [2021-11-19 14:03:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure async_mask [2021-11-19 14:03:41,338 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mask [2021-11-19 14:03:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_init [2021-11-19 14:03:41,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_init [2021-11-19 14:03:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_free [2021-11-19 14:03:41,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_free [2021-11-19 14:03:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd [2021-11-19 14:03:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd [2021-11-19 14:03:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-19 14:03:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-19 14:03:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_get [2021-11-19 14:03:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_get [2021-11-19 14:03:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_remove_one [2021-11-19 14:03:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_remove_one [2021-11-19 14:03:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 14:03:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 14:03:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_pd_table [2021-11-19 14:03:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_pd_table [2021-11-19 14:03:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure init_query_mad [2021-11-19 14:03:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure init_query_mad [2021-11-19 14:03:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-11-19 14:03:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-11-19 14:03:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2021-11-19 14:03:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2021-11-19 14:03:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_post [2021-11-19 14:03:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_post [2021-11-19 14:03:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:03:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:03:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:03:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:03:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_regs [2021-11-19 14:03:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_regs [2021-11-19 14:03:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_PUT [2021-11-19 14:03:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt [2021-11-19 14:03:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt [2021-11-19 14:03:42,821 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:03:42,825 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:06:17,388 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:06:17,433 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:06:17,434 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:06:17,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:06:17 BoogieIcfgContainer [2021-11-19 14:06:17,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:06:17,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:06:17,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:06:17,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:06:17,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:26" (1/3) ... [2021-11-19 14:06:17,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cab067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:06:17, skipping insertion in model container [2021-11-19 14:06:17,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:39" (2/3) ... [2021-11-19 14:06:17,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cab067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:06:17, skipping insertion in model container [2021-11-19 14:06:17,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:06:17" (3/3) ... [2021-11-19 14:06:17,448 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-19 14:06:17,454 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:06:17,454 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:06:17,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:06:17,544 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:06:17,544 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:06:17,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 4985 states, 3560 states have (on average 1.3747191011235955) internal successors, (4894), 3629 states have internal predecessors, (4894), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) [2021-11-19 14:06:17,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 14:06:17,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:17,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:17,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:06:17,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash -717332379, now seen corresponding path program 1 times [2021-11-19 14:06:17,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:17,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783026280] [2021-11-19 14:06:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:17,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:17,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:17,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:17,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:06:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:19,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:06:19,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:06:20,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:06:20,818 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:20,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783026280] [2021-11-19 14:06:20,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783026280] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:20,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:20,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:06:20,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804041875] [2021-11-19 14:06:20,821 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:20,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:06:20,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:20,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:06:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:06:20,868 INFO L87 Difference]: Start difference. First operand has 4985 states, 3560 states have (on average 1.3747191011235955) internal successors, (4894), 3629 states have internal predecessors, (4894), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:06:21,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:21,657 INFO L93 Difference]: Finished difference Result 10089 states and 15078 transitions. [2021-11-19 14:06:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:06:21,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-19 14:06:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:21,729 INFO L225 Difference]: With dead ends: 10089 [2021-11-19 14:06:21,730 INFO L226 Difference]: Without dead ends: 5081 [2021-11-19 14:06:21,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:06:21,790 INFO L933 BasicCegarLoop]: 7283 mSDtfsCounter, 198 mSDsluCounter, 7256 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 14539 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:21,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 14539 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:06:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5081 states. [2021-11-19 14:06:22,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5081 to 5051. [2021-11-19 14:06:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 3610 states have (on average 1.3731301939058171) internal successors, (4957), 3678 states have internal predecessors, (4957), 1225 states have call successors, (1225), 216 states have call predecessors, (1225), 215 states have return successors, (1206), 1205 states have call predecessors, (1206), 1206 states have call successors, (1206) [2021-11-19 14:06:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 7388 transitions. [2021-11-19 14:06:22,170 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 7388 transitions. Word has length 18 [2021-11-19 14:06:22,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:22,170 INFO L470 AbstractCegarLoop]: Abstraction has 5051 states and 7388 transitions. [2021-11-19 14:06:22,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:06:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 7388 transitions. [2021-11-19 14:06:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 14:06:22,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:22,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:22,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:22,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:22,398 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:06:22,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:22,398 INFO L85 PathProgramCache]: Analyzing trace with hash 229306608, now seen corresponding path program 1 times [2021-11-19 14:06:22,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:22,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30458714] [2021-11-19 14:06:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:22,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:22,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:22,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:22,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:06:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:24,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 2052 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:06:24,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:24,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:06:24,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:06:25,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:25,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30458714] [2021-11-19 14:06:25,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30458714] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:25,292 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:25,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:06:25,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239926231] [2021-11-19 14:06:25,293 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:25,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:06:25,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:25,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:06:25,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:06:25,295 INFO L87 Difference]: Start difference. First operand 5051 states and 7388 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:06:27,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:04,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:04,396 INFO L93 Difference]: Finished difference Result 19958 states and 29207 transitions. [2021-11-19 14:07:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:07:04,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-19 14:07:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:04,519 INFO L225 Difference]: With dead ends: 19958 [2021-11-19 14:07:04,519 INFO L226 Difference]: Without dead ends: 14910 [2021-11-19 14:07:04,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:04,558 INFO L933 BasicCegarLoop]: 21278 mSDtfsCounter, 14326 mSDsluCounter, 19034 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14326 SdHoareTripleChecker+Valid, 40312 SdHoareTripleChecker+Invalid, 2407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:04,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14326 Valid, 40312 Invalid, 2407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2400 Invalid, 1 Unknown, 0 Unchecked, 38.4s Time] [2021-11-19 14:07:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14910 states. [2021-11-19 14:07:05,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14910 to 14888. [2021-11-19 14:07:05,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14888 states, 10675 states have (on average 1.3722716627634661) internal successors, (14649), 10840 states have internal predecessors, (14649), 3582 states have call successors, (3582), 631 states have call predecessors, (3582), 630 states have return successors, (3563), 3563 states have call predecessors, (3563), 3563 states have call successors, (3563) [2021-11-19 14:07:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14888 states to 14888 states and 21794 transitions. [2021-11-19 14:07:05,471 INFO L78 Accepts]: Start accepts. Automaton has 14888 states and 21794 transitions. Word has length 21 [2021-11-19 14:07:05,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:05,472 INFO L470 AbstractCegarLoop]: Abstraction has 14888 states and 21794 transitions. [2021-11-19 14:07:05,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:07:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 14888 states and 21794 transitions. [2021-11-19 14:07:05,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:07:05,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:05,485 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:05,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:05,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:05,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:05,702 INFO L85 PathProgramCache]: Analyzing trace with hash 992647973, now seen corresponding path program 1 times [2021-11-19 14:07:05,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:05,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578032040] [2021-11-19 14:07:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:05,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:05,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:05,707 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:05,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:07:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:08,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2329 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:08,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:10,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:12,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:12,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578032040] [2021-11-19 14:07:12,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578032040] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:12,559 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:12,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:07:12,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150103264] [2021-11-19 14:07:12,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:12,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:07:12,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:12,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:07:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:12,561 INFO L87 Difference]: Start difference. First operand 14888 states and 21794 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 14:07:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:13,087 INFO L93 Difference]: Finished difference Result 29773 states and 43585 transitions. [2021-11-19 14:07:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:07:13,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 91 [2021-11-19 14:07:13,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:13,422 INFO L225 Difference]: With dead ends: 29773 [2021-11-19 14:07:13,422 INFO L226 Difference]: Without dead ends: 14888 [2021-11-19 14:07:13,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:13,504 INFO L933 BasicCegarLoop]: 7225 mSDtfsCounter, 7198 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7198 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:13,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7198 Valid, 7225 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:07:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14888 states. [2021-11-19 14:07:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14888 to 14888. [2021-11-19 14:07:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14888 states, 10675 states have (on average 1.3720843091334896) internal successors, (14647), 10840 states have internal predecessors, (14647), 3582 states have call successors, (3582), 631 states have call predecessors, (3582), 630 states have return successors, (3563), 3563 states have call predecessors, (3563), 3563 states have call successors, (3563) [2021-11-19 14:07:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14888 states to 14888 states and 21792 transitions. [2021-11-19 14:07:14,500 INFO L78 Accepts]: Start accepts. Automaton has 14888 states and 21792 transitions. Word has length 91 [2021-11-19 14:07:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:14,501 INFO L470 AbstractCegarLoop]: Abstraction has 14888 states and 21792 transitions. [2021-11-19 14:07:14,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 14:07:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 14888 states and 21792 transitions. [2021-11-19 14:07:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:07:14,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:14,504 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:14,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:14,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:14,721 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:14,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:14,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1211502691, now seen corresponding path program 1 times [2021-11-19 14:07:14,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:14,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435710953] [2021-11-19 14:07:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:14,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:14,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:14,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:07:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:17,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 2329 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:07:17,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:17,935 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:17,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:18,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:18,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435710953] [2021-11-19 14:07:18,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435710953] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:18,285 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:18,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:07:18,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617176310] [2021-11-19 14:07:18,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:18,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:07:18,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:18,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:07:18,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:18,287 INFO L87 Difference]: Start difference. First operand 14888 states and 21792 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-19 14:07:19,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:19,109 INFO L93 Difference]: Finished difference Result 30263 states and 44381 transitions. [2021-11-19 14:07:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:07:19,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-11-19 14:07:19,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:19,203 INFO L225 Difference]: With dead ends: 30263 [2021-11-19 14:07:19,203 INFO L226 Difference]: Without dead ends: 15378 [2021-11-19 14:07:19,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:07:19,262 INFO L933 BasicCegarLoop]: 7438 mSDtfsCounter, 161 mSDsluCounter, 14689 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 22127 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:19,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 22127 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:07:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15378 states. [2021-11-19 14:07:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15378 to 14892. [2021-11-19 14:07:20,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14892 states, 10679 states have (on average 1.371944938664669) internal successors, (14651), 10844 states have internal predecessors, (14651), 3582 states have call successors, (3582), 631 states have call predecessors, (3582), 630 states have return successors, (3563), 3563 states have call predecessors, (3563), 3563 states have call successors, (3563) [2021-11-19 14:07:20,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14892 states to 14892 states and 21796 transitions. [2021-11-19 14:07:20,494 INFO L78 Accepts]: Start accepts. Automaton has 14892 states and 21796 transitions. Word has length 91 [2021-11-19 14:07:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:20,494 INFO L470 AbstractCegarLoop]: Abstraction has 14892 states and 21796 transitions. [2021-11-19 14:07:20,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-19 14:07:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 14892 states and 21796 transitions. [2021-11-19 14:07:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:07:20,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:20,499 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:20,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:20,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:20,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:20,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1604529701, now seen corresponding path program 1 times [2021-11-19 14:07:20,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:20,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043347651] [2021-11-19 14:07:20,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:20,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:20,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:20,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:20,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:07:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:23,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 2329 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:07:23,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:24,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:25,108 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:25,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043347651] [2021-11-19 14:07:25,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043347651] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:25,108 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:25,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:07:25,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086568812] [2021-11-19 14:07:25,109 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:25,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:07:25,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:25,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:07:25,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:07:25,111 INFO L87 Difference]: Start difference. First operand 14892 states and 21796 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-19 14:07:27,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:29,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:31,950 INFO L93 Difference]: Finished difference Result 25029 states and 36625 transitions. [2021-11-19 14:07:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:07:31,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-11-19 14:07:31,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:32,003 INFO L225 Difference]: With dead ends: 25029 [2021-11-19 14:07:32,003 INFO L226 Difference]: Without dead ends: 10140 [2021-11-19 14:07:32,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:07:32,061 INFO L933 BasicCegarLoop]: 7222 mSDtfsCounter, 249 mSDsluCounter, 50630 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 57852 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:32,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 57852 Invalid, 112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2021-11-19 14:07:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10140 states. [2021-11-19 14:07:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10140 to 9990. [2021-11-19 14:07:32,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9990 states, 7177 states have (on average 1.3738330778876968) internal successors, (9860), 7293 states have internal predecessors, (9860), 2391 states have call successors, (2391), 422 states have call predecessors, (2391), 421 states have return successors, (2372), 2372 states have call predecessors, (2372), 2372 states have call successors, (2372) [2021-11-19 14:07:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9990 states to 9990 states and 14623 transitions. [2021-11-19 14:07:32,592 INFO L78 Accepts]: Start accepts. Automaton has 9990 states and 14623 transitions. Word has length 91 [2021-11-19 14:07:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:32,593 INFO L470 AbstractCegarLoop]: Abstraction has 9990 states and 14623 transitions. [2021-11-19 14:07:32,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-19 14:07:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9990 states and 14623 transitions. [2021-11-19 14:07:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:07:32,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:32,600 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:32,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:32,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:32,821 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:32,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:32,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1661788003, now seen corresponding path program 1 times [2021-11-19 14:07:32,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:32,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126270009] [2021-11-19 14:07:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:32,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:32,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:32,825 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:32,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:07:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:35,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:35,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:38,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:38,983 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:38,984 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:38,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126270009] [2021-11-19 14:07:38,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126270009] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:38,984 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:38,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:07:38,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999349759] [2021-11-19 14:07:38,984 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:38,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:07:38,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:38,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:07:38,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:07:38,986 INFO L87 Difference]: Start difference. First operand 9990 states and 14623 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:07:41,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:41,360 INFO L93 Difference]: Finished difference Result 9992 states and 14624 transitions. [2021-11-19 14:07:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:07:41,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 91 [2021-11-19 14:07:41,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:41,401 INFO L225 Difference]: With dead ends: 9992 [2021-11-19 14:07:41,402 INFO L226 Difference]: Without dead ends: 9989 [2021-11-19 14:07:41,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:07:41,409 INFO L933 BasicCegarLoop]: 7224 mSDtfsCounter, 7172 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7172 SdHoareTripleChecker+Valid, 7224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:41,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7172 Valid, 7224 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:07:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9989 states. [2021-11-19 14:07:41,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9989 to 9989. [2021-11-19 14:07:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9989 states, 7177 states have (on average 1.3736937439041381) internal successors, (9859), 7292 states have internal predecessors, (9859), 2390 states have call successors, (2390), 422 states have call predecessors, (2390), 421 states have return successors, (2372), 2372 states have call predecessors, (2372), 2372 states have call successors, (2372) [2021-11-19 14:07:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9989 states to 9989 states and 14621 transitions. [2021-11-19 14:07:41,950 INFO L78 Accepts]: Start accepts. Automaton has 9989 states and 14621 transitions. Word has length 91 [2021-11-19 14:07:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:41,952 INFO L470 AbstractCegarLoop]: Abstraction has 9989 states and 14621 transitions. [2021-11-19 14:07:41,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:07:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9989 states and 14621 transitions. [2021-11-19 14:07:41,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-19 14:07:41,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:41,953 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:42,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:42,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:42,169 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash -26264995, now seen corresponding path program 1 times [2021-11-19 14:07:42,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:42,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768154127] [2021-11-19 14:07:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:42,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:42,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:42,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:42,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:07:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:44,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:44,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:47,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:48,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:48,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768154127] [2021-11-19 14:07:48,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768154127] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:48,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:48,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:07:48,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982631488] [2021-11-19 14:07:48,325 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:48,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:07:48,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:48,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:07:48,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:07:48,326 INFO L87 Difference]: Start difference. First operand 9989 states and 14621 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:07:50,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:50,695 INFO L93 Difference]: Finished difference Result 9991 states and 14622 transitions. [2021-11-19 14:07:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:07:50,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 92 [2021-11-19 14:07:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:50,738 INFO L225 Difference]: With dead ends: 9991 [2021-11-19 14:07:50,739 INFO L226 Difference]: Without dead ends: 9988 [2021-11-19 14:07:50,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:07:50,746 INFO L933 BasicCegarLoop]: 7222 mSDtfsCounter, 7169 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7169 SdHoareTripleChecker+Valid, 7222 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:50,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7169 Valid, 7222 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:07:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9988 states. [2021-11-19 14:07:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9988 to 9988. [2021-11-19 14:07:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9988 states, 7177 states have (on average 1.3735544099205796) internal successors, (9858), 7291 states have internal predecessors, (9858), 2389 states have call successors, (2389), 422 states have call predecessors, (2389), 421 states have return successors, (2372), 2372 states have call predecessors, (2372), 2372 states have call successors, (2372) [2021-11-19 14:07:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9988 states to 9988 states and 14619 transitions. [2021-11-19 14:07:51,308 INFO L78 Accepts]: Start accepts. Automaton has 9988 states and 14619 transitions. Word has length 92 [2021-11-19 14:07:51,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:51,308 INFO L470 AbstractCegarLoop]: Abstraction has 9988 states and 14619 transitions. [2021-11-19 14:07:51,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:07:51,309 INFO L276 IsEmpty]: Start isEmpty. Operand 9988 states and 14619 transitions. [2021-11-19 14:07:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-19 14:07:51,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:51,310 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:51,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:51,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:51,533 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -816295514, now seen corresponding path program 1 times [2021-11-19 14:07:51,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:51,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965575558] [2021-11-19 14:07:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:51,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:51,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:51,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:51,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:07:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:54,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 2325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:54,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:56,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:07:57,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:57,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965575558] [2021-11-19 14:07:57,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965575558] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:57,691 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:57,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:07:57,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596609144] [2021-11-19 14:07:57,691 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:57,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:07:57,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:57,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:07:57,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:07:57,692 INFO L87 Difference]: Start difference. First operand 9988 states and 14619 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:07:59,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:00,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:00,204 INFO L93 Difference]: Finished difference Result 10046 states and 14675 transitions. [2021-11-19 14:08:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:00,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 93 [2021-11-19 14:08:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:00,247 INFO L225 Difference]: With dead ends: 10046 [2021-11-19 14:08:00,248 INFO L226 Difference]: Without dead ends: 10042 [2021-11-19 14:08:00,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:00,255 INFO L933 BasicCegarLoop]: 7242 mSDtfsCounter, 7019 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7019 SdHoareTripleChecker+Valid, 7411 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:00,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7019 Valid, 7411 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2021-11-19 14:08:00,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 10040. [2021-11-19 14:08:00,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10040 states, 7217 states have (on average 1.3724539282250243) internal successors, (9905), 7329 states have internal predecessors, (9905), 2389 states have call successors, (2389), 434 states have call predecessors, (2389), 433 states have return successors, (2374), 2374 states have call predecessors, (2374), 2374 states have call successors, (2374) [2021-11-19 14:08:00,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10040 states to 10040 states and 14668 transitions. [2021-11-19 14:08:00,851 INFO L78 Accepts]: Start accepts. Automaton has 10040 states and 14668 transitions. Word has length 93 [2021-11-19 14:08:00,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:00,851 INFO L470 AbstractCegarLoop]: Abstraction has 10040 states and 14668 transitions. [2021-11-19 14:08:00,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 10040 states and 14668 transitions. [2021-11-19 14:08:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 14:08:00,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:00,853 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:00,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:01,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:01,077 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:01,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 462567040, now seen corresponding path program 1 times [2021-11-19 14:08:01,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:01,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507435172] [2021-11-19 14:08:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:01,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:01,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:01,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:01,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:08:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:04,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:04,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:06,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:07,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:07,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507435172] [2021-11-19 14:08:07,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507435172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:07,480 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:07,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:07,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900672399] [2021-11-19 14:08:07,481 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:07,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:07,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:07,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:07,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:07,482 INFO L87 Difference]: Start difference. First operand 10040 states and 14668 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:09,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:09,966 INFO L93 Difference]: Finished difference Result 10042 states and 14669 transitions. [2021-11-19 14:08:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 94 [2021-11-19 14:08:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:10,001 INFO L225 Difference]: With dead ends: 10042 [2021-11-19 14:08:10,001 INFO L226 Difference]: Without dead ends: 10039 [2021-11-19 14:08:10,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:10,008 INFO L933 BasicCegarLoop]: 7216 mSDtfsCounter, 7161 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7161 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:10,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7161 Valid, 7216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10039 states. [2021-11-19 14:08:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 10039. [2021-11-19 14:08:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10039 states, 7217 states have (on average 1.372315366495774) internal successors, (9904), 7328 states have internal predecessors, (9904), 2388 states have call successors, (2388), 434 states have call predecessors, (2388), 433 states have return successors, (2374), 2374 states have call predecessors, (2374), 2374 states have call successors, (2374) [2021-11-19 14:08:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10039 states to 10039 states and 14666 transitions. [2021-11-19 14:08:10,595 INFO L78 Accepts]: Start accepts. Automaton has 10039 states and 14666 transitions. Word has length 94 [2021-11-19 14:08:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:10,596 INFO L470 AbstractCegarLoop]: Abstraction has 10039 states and 14666 transitions. [2021-11-19 14:08:10,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 10039 states and 14666 transitions. [2021-11-19 14:08:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 14:08:10,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:10,598 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:10,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:10,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:10,813 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:10,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:10,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1452605417, now seen corresponding path program 1 times [2021-11-19 14:08:10,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:10,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80654973] [2021-11-19 14:08:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:10,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:10,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:10,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:10,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:08:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:13,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2327 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:13,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:16,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:17,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:17,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80654973] [2021-11-19 14:08:17,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80654973] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:17,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:17,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:17,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716655115] [2021-11-19 14:08:17,176 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:17,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:17,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:17,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:17,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:17,178 INFO L87 Difference]: Start difference. First operand 10039 states and 14666 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:19,315 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:19,726 INFO L93 Difference]: Finished difference Result 10049 states and 14672 transitions. [2021-11-19 14:08:19,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:19,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 95 [2021-11-19 14:08:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:19,757 INFO L225 Difference]: With dead ends: 10049 [2021-11-19 14:08:19,757 INFO L226 Difference]: Without dead ends: 10045 [2021-11-19 14:08:19,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:19,765 INFO L933 BasicCegarLoop]: 7212 mSDtfsCounter, 171 mSDsluCounter, 6996 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 14208 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:19,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 14208 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10045 states. [2021-11-19 14:08:20,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10045 to 10043. [2021-11-19 14:08:20,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10043 states, 7221 states have (on average 1.3716936712366707) internal successors, (9905), 7330 states have internal predecessors, (9905), 2386 states have call successors, (2386), 436 states have call predecessors, (2386), 435 states have return successors, (2374), 2374 states have call predecessors, (2374), 2374 states have call successors, (2374) [2021-11-19 14:08:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10043 states to 10043 states and 14665 transitions. [2021-11-19 14:08:20,316 INFO L78 Accepts]: Start accepts. Automaton has 10043 states and 14665 transitions. Word has length 95 [2021-11-19 14:08:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:20,317 INFO L470 AbstractCegarLoop]: Abstraction has 10043 states and 14665 transitions. [2021-11-19 14:08:20,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 10043 states and 14665 transitions. [2021-11-19 14:08:20,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-19 14:08:20,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:20,319 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:20,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:20,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:20,545 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:20,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:20,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2079028899, now seen corresponding path program 1 times [2021-11-19 14:08:20,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:20,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243098781] [2021-11-19 14:08:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:20,548 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:20,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:20,550 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:20,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:08:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:23,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:23,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:25,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:26,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:26,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243098781] [2021-11-19 14:08:26,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243098781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:26,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:26,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:26,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545807687] [2021-11-19 14:08:26,959 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:26,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:26,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:26,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:26,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:26,960 INFO L87 Difference]: Start difference. First operand 10043 states and 14665 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:29,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:29,458 INFO L93 Difference]: Finished difference Result 10045 states and 14666 transitions. [2021-11-19 14:08:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:29,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 96 [2021-11-19 14:08:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:29,488 INFO L225 Difference]: With dead ends: 10045 [2021-11-19 14:08:29,489 INFO L226 Difference]: Without dead ends: 10042 [2021-11-19 14:08:29,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:29,494 INFO L933 BasicCegarLoop]: 7210 mSDtfsCounter, 7153 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7153 SdHoareTripleChecker+Valid, 7210 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:29,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7153 Valid, 7210 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:29,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2021-11-19 14:08:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 10042. [2021-11-19 14:08:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10042 states, 7221 states have (on average 1.3715551862622906) internal successors, (9904), 7329 states have internal predecessors, (9904), 2385 states have call successors, (2385), 436 states have call predecessors, (2385), 435 states have return successors, (2374), 2374 states have call predecessors, (2374), 2374 states have call successors, (2374) [2021-11-19 14:08:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10042 states to 10042 states and 14663 transitions. [2021-11-19 14:08:29,999 INFO L78 Accepts]: Start accepts. Automaton has 10042 states and 14663 transitions. Word has length 96 [2021-11-19 14:08:29,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:29,999 INFO L470 AbstractCegarLoop]: Abstraction has 10042 states and 14663 transitions. [2021-11-19 14:08:30,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 10042 states and 14663 transitions. [2021-11-19 14:08:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-19 14:08:30,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:30,001 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:30,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:30,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:30,209 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:30,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash 23325228, now seen corresponding path program 1 times [2021-11-19 14:08:30,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:30,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830819436] [2021-11-19 14:08:30,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:30,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:30,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:30,213 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:30,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:08:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:32,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 2329 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:32,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:35,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:36,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:36,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830819436] [2021-11-19 14:08:36,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830819436] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:36,616 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:36,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:36,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322437195] [2021-11-19 14:08:36,616 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:36,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:36,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:36,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:36,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:36,617 INFO L87 Difference]: Start difference. First operand 10042 states and 14663 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:38,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:39,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:39,074 INFO L93 Difference]: Finished difference Result 10044 states and 14664 transitions. [2021-11-19 14:08:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:39,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 97 [2021-11-19 14:08:39,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:39,099 INFO L225 Difference]: With dead ends: 10044 [2021-11-19 14:08:39,099 INFO L226 Difference]: Without dead ends: 10041 [2021-11-19 14:08:39,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:39,105 INFO L933 BasicCegarLoop]: 7208 mSDtfsCounter, 7150 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7150 SdHoareTripleChecker+Valid, 7208 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:39,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7150 Valid, 7208 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2021-11-19 14:08:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 10041. [2021-11-19 14:08:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10041 states, 7221 states have (on average 1.3714167012879102) internal successors, (9903), 7328 states have internal predecessors, (9903), 2384 states have call successors, (2384), 436 states have call predecessors, (2384), 435 states have return successors, (2374), 2374 states have call predecessors, (2374), 2374 states have call successors, (2374) [2021-11-19 14:08:39,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10041 states to 10041 states and 14661 transitions. [2021-11-19 14:08:39,697 INFO L78 Accepts]: Start accepts. Automaton has 10041 states and 14661 transitions. Word has length 97 [2021-11-19 14:08:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:39,697 INFO L470 AbstractCegarLoop]: Abstraction has 10041 states and 14661 transitions. [2021-11-19 14:08:39,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10041 states and 14661 transitions. [2021-11-19 14:08:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-19 14:08:39,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:39,698 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:39,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:39,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:39,899 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:39,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:39,900 INFO L85 PathProgramCache]: Analyzing trace with hash 721025734, now seen corresponding path program 1 times [2021-11-19 14:08:39,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:39,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589096997] [2021-11-19 14:08:39,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:39,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:39,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:39,903 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:39,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:08:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:42,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 2330 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:42,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:45,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:46,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:46,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589096997] [2021-11-19 14:08:46,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589096997] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:46,304 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:46,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:46,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665299121] [2021-11-19 14:08:46,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:46,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:46,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:46,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:46,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:46,306 INFO L87 Difference]: Start difference. First operand 10041 states and 14661 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:48,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:48,819 INFO L93 Difference]: Finished difference Result 10043 states and 14662 transitions. [2021-11-19 14:08:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:48,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 98 [2021-11-19 14:08:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:48,844 INFO L225 Difference]: With dead ends: 10043 [2021-11-19 14:08:48,844 INFO L226 Difference]: Without dead ends: 10040 [2021-11-19 14:08:48,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:48,850 INFO L933 BasicCegarLoop]: 7206 mSDtfsCounter, 7147 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7147 SdHoareTripleChecker+Valid, 7206 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:48,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7147 Valid, 7206 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10040 states. [2021-11-19 14:08:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10040 to 10040. [2021-11-19 14:08:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10040 states, 7221 states have (on average 1.37127821631353) internal successors, (9902), 7327 states have internal predecessors, (9902), 2383 states have call successors, (2383), 436 states have call predecessors, (2383), 435 states have return successors, (2374), 2374 states have call predecessors, (2374), 2374 states have call successors, (2374) [2021-11-19 14:08:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10040 states to 10040 states and 14659 transitions. [2021-11-19 14:08:49,387 INFO L78 Accepts]: Start accepts. Automaton has 10040 states and 14659 transitions. Word has length 98 [2021-11-19 14:08:49,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:49,387 INFO L470 AbstractCegarLoop]: Abstraction has 10040 states and 14659 transitions. [2021-11-19 14:08:49,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:49,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10040 states and 14659 transitions. [2021-11-19 14:08:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-19 14:08:49,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:49,389 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:49,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-19 14:08:49,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:49,601 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:49,602 INFO L85 PathProgramCache]: Analyzing trace with hash 874909807, now seen corresponding path program 1 times [2021-11-19 14:08:49,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:49,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021721913] [2021-11-19 14:08:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:49,604 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:49,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:49,604 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:49,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:08:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:52,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 2331 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:52,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:54,822 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:54,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:08:55,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:55,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021721913] [2021-11-19 14:08:55,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021721913] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:55,994 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:55,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:55,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119383692] [2021-11-19 14:08:55,995 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:55,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:55,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:55,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:55,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:55,996 INFO L87 Difference]: Start difference. First operand 10040 states and 14659 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:58,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:58,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:58,659 INFO L93 Difference]: Finished difference Result 11411 states and 16404 transitions. [2021-11-19 14:08:58,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:58,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 99 [2021-11-19 14:08:58,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:58,681 INFO L225 Difference]: With dead ends: 11411 [2021-11-19 14:08:58,681 INFO L226 Difference]: Without dead ends: 11407 [2021-11-19 14:08:58,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:58,685 INFO L933 BasicCegarLoop]: 7352 mSDtfsCounter, 7071 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7071 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:58,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7071 Valid, 8265 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:08:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11407 states. [2021-11-19 14:08:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11407 to 11404. [2021-11-19 14:08:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11404 states, 8157 states have (on average 1.3545421110702465) internal successors, (11049), 8271 states have internal predecessors, (11049), 2677 states have call successors, (2677), 570 states have call predecessors, (2677), 569 states have return successors, (2670), 2670 states have call predecessors, (2670), 2670 states have call successors, (2670) [2021-11-19 14:08:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11404 states to 11404 states and 16396 transitions. [2021-11-19 14:08:59,209 INFO L78 Accepts]: Start accepts. Automaton has 11404 states and 16396 transitions. Word has length 99 [2021-11-19 14:08:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:59,209 INFO L470 AbstractCegarLoop]: Abstraction has 11404 states and 16396 transitions. [2021-11-19 14:08:59,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:08:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 11404 states and 16396 transitions. [2021-11-19 14:08:59,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 14:08:59,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:59,211 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:59,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:59,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:59,430 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:08:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1350353641, now seen corresponding path program 1 times [2021-11-19 14:08:59,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:59,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066517412] [2021-11-19 14:08:59,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:59,432 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:59,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:59,433 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:59,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:09:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:02,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:02,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:04,678 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:04,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:05,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:05,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066517412] [2021-11-19 14:09:05,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066517412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:05,895 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:05,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:05,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957411502] [2021-11-19 14:09:05,896 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:05,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:05,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:05,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:05,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:05,897 INFO L87 Difference]: Start difference. First operand 11404 states and 16396 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:08,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:08,525 INFO L93 Difference]: Finished difference Result 11406 states and 16397 transitions. [2021-11-19 14:09:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 100 [2021-11-19 14:09:08,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:08,553 INFO L225 Difference]: With dead ends: 11406 [2021-11-19 14:09:08,553 INFO L226 Difference]: Without dead ends: 11403 [2021-11-19 14:09:08,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:08,560 INFO L933 BasicCegarLoop]: 7200 mSDtfsCounter, 7139 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7139 SdHoareTripleChecker+Valid, 7200 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:08,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7139 Valid, 7200 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:09:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11403 states. [2021-11-19 14:09:09,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11403 to 11403. [2021-11-19 14:09:09,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11403 states, 8157 states have (on average 1.3544195169792816) internal successors, (11048), 8270 states have internal predecessors, (11048), 2676 states have call successors, (2676), 570 states have call predecessors, (2676), 569 states have return successors, (2670), 2670 states have call predecessors, (2670), 2670 states have call successors, (2670) [2021-11-19 14:09:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11403 states to 11403 states and 16394 transitions. [2021-11-19 14:09:09,212 INFO L78 Accepts]: Start accepts. Automaton has 11403 states and 16394 transitions. Word has length 100 [2021-11-19 14:09:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:09,212 INFO L470 AbstractCegarLoop]: Abstraction has 11403 states and 16394 transitions. [2021-11-19 14:09:09,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:09,213 INFO L276 IsEmpty]: Start isEmpty. Operand 11403 states and 16394 transitions. [2021-11-19 14:09:09,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-19 14:09:09,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:09,214 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:09,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:09,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:09,417 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:09,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1090751822, now seen corresponding path program 1 times [2021-11-19 14:09:09,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:09,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254573477] [2021-11-19 14:09:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:09,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:09,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:09,420 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:09,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:09:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:12,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:12,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:14,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:15,907 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:15,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:15,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254573477] [2021-11-19 14:09:15,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254573477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:15,908 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:15,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:15,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465087540] [2021-11-19 14:09:15,908 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:15,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:15,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:15,909 INFO L87 Difference]: Start difference. First operand 11403 states and 16394 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:18,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:18,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:18,569 INFO L93 Difference]: Finished difference Result 11405 states and 16395 transitions. [2021-11-19 14:09:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:18,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 101 [2021-11-19 14:09:18,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:18,592 INFO L225 Difference]: With dead ends: 11405 [2021-11-19 14:09:18,592 INFO L226 Difference]: Without dead ends: 11402 [2021-11-19 14:09:18,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:18,597 INFO L933 BasicCegarLoop]: 7198 mSDtfsCounter, 7136 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7136 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:18,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7136 Valid, 7198 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:09:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2021-11-19 14:09:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 11402. [2021-11-19 14:09:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11402 states, 8157 states have (on average 1.3542969228883168) internal successors, (11047), 8269 states have internal predecessors, (11047), 2675 states have call successors, (2675), 570 states have call predecessors, (2675), 569 states have return successors, (2670), 2670 states have call predecessors, (2670), 2670 states have call successors, (2670) [2021-11-19 14:09:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11402 states to 11402 states and 16392 transitions. [2021-11-19 14:09:19,260 INFO L78 Accepts]: Start accepts. Automaton has 11402 states and 16392 transitions. Word has length 101 [2021-11-19 14:09:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:19,260 INFO L470 AbstractCegarLoop]: Abstraction has 11402 states and 16392 transitions. [2021-11-19 14:09:19,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 11402 states and 16392 transitions. [2021-11-19 14:09:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-19 14:09:19,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:19,263 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:19,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:19,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:19,477 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 544395020, now seen corresponding path program 1 times [2021-11-19 14:09:19,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:19,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096743251] [2021-11-19 14:09:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:19,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:19,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:19,480 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:19,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:09:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:22,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:22,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:24,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:26,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:26,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096743251] [2021-11-19 14:09:26,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096743251] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:26,008 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:26,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:26,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353494994] [2021-11-19 14:09:26,008 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:26,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:26,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:26,009 INFO L87 Difference]: Start difference. First operand 11402 states and 16392 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:28,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:28,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:28,711 INFO L93 Difference]: Finished difference Result 11404 states and 16393 transitions. [2021-11-19 14:09:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:28,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 102 [2021-11-19 14:09:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:28,743 INFO L225 Difference]: With dead ends: 11404 [2021-11-19 14:09:28,744 INFO L226 Difference]: Without dead ends: 11401 [2021-11-19 14:09:28,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:28,748 INFO L933 BasicCegarLoop]: 7196 mSDtfsCounter, 7133 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7133 SdHoareTripleChecker+Valid, 7196 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:28,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7133 Valid, 7196 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:09:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11401 states. [2021-11-19 14:09:29,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11401 to 11401. [2021-11-19 14:09:29,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11401 states, 8157 states have (on average 1.354174328797352) internal successors, (11046), 8268 states have internal predecessors, (11046), 2674 states have call successors, (2674), 570 states have call predecessors, (2674), 569 states have return successors, (2670), 2670 states have call predecessors, (2670), 2670 states have call successors, (2670) [2021-11-19 14:09:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11401 states to 11401 states and 16390 transitions. [2021-11-19 14:09:29,349 INFO L78 Accepts]: Start accepts. Automaton has 11401 states and 16390 transitions. Word has length 102 [2021-11-19 14:09:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:29,349 INFO L470 AbstractCegarLoop]: Abstraction has 11401 states and 16390 transitions. [2021-11-19 14:09:29,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 11401 states and 16390 transitions. [2021-11-19 14:09:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-19 14:09:29,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:29,350 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:29,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:29,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:29,551 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:29,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:29,551 INFO L85 PathProgramCache]: Analyzing trace with hash -305655563, now seen corresponding path program 1 times [2021-11-19 14:09:29,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:29,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017653012] [2021-11-19 14:09:29,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:29,554 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:29,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:29,557 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:29,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:09:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:32,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2335 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:32,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:34,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:36,259 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-19 14:09:36,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:36,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017653012] [2021-11-19 14:09:36,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017653012] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:36,260 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:36,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:36,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406981232] [2021-11-19 14:09:36,261 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:36,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:36,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:36,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:36,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:36,263 INFO L87 Difference]: Start difference. First operand 11401 states and 16390 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:38,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:38,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:38,861 INFO L93 Difference]: Finished difference Result 11403 states and 16391 transitions. [2021-11-19 14:09:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 103 [2021-11-19 14:09:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:38,928 INFO L225 Difference]: With dead ends: 11403 [2021-11-19 14:09:38,929 INFO L226 Difference]: Without dead ends: 11368 [2021-11-19 14:09:38,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:38,936 INFO L933 BasicCegarLoop]: 7195 mSDtfsCounter, 7130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7130 SdHoareTripleChecker+Valid, 7195 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:38,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7130 Valid, 7195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:09:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11368 states. [2021-11-19 14:09:39,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11368 to 5738. [2021-11-19 14:09:39,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 4108 states have (on average 1.3551606621226875) internal successors, (5567), 4164 states have internal predecessors, (5567), 1343 states have call successors, (1343), 287 states have call predecessors, (1343), 286 states have return successors, (1340), 1340 states have call predecessors, (1340), 1340 states have call successors, (1340) [2021-11-19 14:09:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 8250 transitions. [2021-11-19 14:09:39,389 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 8250 transitions. Word has length 103 [2021-11-19 14:09:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:39,389 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 8250 transitions. [2021-11-19 14:09:39,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-19 14:09:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 8250 transitions. [2021-11-19 14:09:39,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 14:09:39,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:39,390 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:09:39,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:39,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:39,591 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:39,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:39,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2038345918, now seen corresponding path program 1 times [2021-11-19 14:09:39,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:39,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105423926] [2021-11-19 14:09:39,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:39,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:39,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:39,594 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:39,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:09:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:42,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:09:42,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-19 14:09:43,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-19 14:09:43,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:43,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105423926] [2021-11-19 14:09:43,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105423926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:43,859 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:43,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:43,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362418197] [2021-11-19 14:09:43,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:43,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:43,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:43,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:43,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:43,861 INFO L87 Difference]: Start difference. First operand 5738 states and 8250 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:09:46,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:46,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:46,413 INFO L93 Difference]: Finished difference Result 5740 states and 8251 transitions. [2021-11-19 14:09:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:46,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2021-11-19 14:09:46,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:46,423 INFO L225 Difference]: With dead ends: 5740 [2021-11-19 14:09:46,423 INFO L226 Difference]: Without dead ends: 5737 [2021-11-19 14:09:46,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:46,425 INFO L933 BasicCegarLoop]: 7177 mSDtfsCounter, 6975 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6975 SdHoareTripleChecker+Valid, 7356 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:46,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6975 Valid, 7356 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:09:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5737 states. [2021-11-19 14:09:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5737 to 5737. [2021-11-19 14:09:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 4108 states have (on average 1.35491723466407) internal successors, (5566), 4163 states have internal predecessors, (5566), 1342 states have call successors, (1342), 287 states have call predecessors, (1342), 286 states have return successors, (1340), 1340 states have call predecessors, (1340), 1340 states have call successors, (1340) [2021-11-19 14:09:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 8248 transitions. [2021-11-19 14:09:46,751 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 8248 transitions. Word has length 125 [2021-11-19 14:09:46,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:46,751 INFO L470 AbstractCegarLoop]: Abstraction has 5737 states and 8248 transitions. [2021-11-19 14:09:46,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:09:46,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 8248 transitions. [2021-11-19 14:09:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-19 14:09:46,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:46,755 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:09:46,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-19 14:09:46,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:46,955 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:46,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:46,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1759513614, now seen corresponding path program 1 times [2021-11-19 14:09:46,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:46,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807014285] [2021-11-19 14:09:46,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:46,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:46,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:46,959 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:46,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:09:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:49,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:49,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-19 14:09:51,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-19 14:09:52,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:52,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807014285] [2021-11-19 14:09:52,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807014285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:52,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:52,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:09:52,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981556680] [2021-11-19 14:09:52,942 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:52,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:09:52,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:09:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:09:52,943 INFO L87 Difference]: Start difference. First operand 5737 states and 8248 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:09:55,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:56,199 INFO L93 Difference]: Finished difference Result 13030 states and 18460 transitions. [2021-11-19 14:09:56,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:09:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 198 [2021-11-19 14:09:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:56,217 INFO L225 Difference]: With dead ends: 13030 [2021-11-19 14:09:56,217 INFO L226 Difference]: Without dead ends: 7349 [2021-11-19 14:09:56,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:09:56,240 INFO L933 BasicCegarLoop]: 8111 mSDtfsCounter, 7181 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7181 SdHoareTripleChecker+Valid, 11021 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:56,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7181 Valid, 11021 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:09:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2021-11-19 14:09:56,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 7253. [2021-11-19 14:09:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 5143 states have (on average 1.3317130079720008) internal successors, (6849), 5214 states have internal predecessors, (6849), 1667 states have call successors, (1667), 443 states have call predecessors, (1667), 442 states have return successors, (1665), 1665 states have call predecessors, (1665), 1665 states have call successors, (1665) [2021-11-19 14:09:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 10181 transitions. [2021-11-19 14:09:56,757 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 10181 transitions. Word has length 198 [2021-11-19 14:09:56,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:56,757 INFO L470 AbstractCegarLoop]: Abstraction has 7253 states and 10181 transitions. [2021-11-19 14:09:56,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:09:56,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 10181 transitions. [2021-11-19 14:09:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-19 14:09:56,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:56,761 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:09:56,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-19 14:09:56,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:56,962 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash -47334003, now seen corresponding path program 1 times [2021-11-19 14:09:56,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:56,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867056328] [2021-11-19 14:09:56,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:56,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:56,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:56,966 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:56,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:09:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:00,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 2840 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:10:00,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-19 14:10:01,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-19 14:10:03,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:03,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867056328] [2021-11-19 14:10:03,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867056328] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:03,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:10:03,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:10:03,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729035296] [2021-11-19 14:10:03,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:03,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:10:03,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:03,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:10:03,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:10:03,168 INFO L87 Difference]: Start difference. First operand 7253 states and 10181 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 14:10:05,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:44,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:44,977 INFO L93 Difference]: Finished difference Result 25564 states and 36203 transitions. [2021-11-19 14:10:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:10:44,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 242 [2021-11-19 14:10:44,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:45,021 INFO L225 Difference]: With dead ends: 25564 [2021-11-19 14:10:45,021 INFO L226 Difference]: Without dead ends: 18367 [2021-11-19 14:10:45,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:10:45,038 INFO L933 BasicCegarLoop]: 15359 mSDtfsCounter, 18933 mSDsluCounter, 42599 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 2339 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18933 SdHoareTripleChecker+Valid, 57958 SdHoareTripleChecker+Invalid, 4687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:45,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18933 Valid, 57958 Invalid, 4687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2339 Valid, 2347 Invalid, 1 Unknown, 0 Unchecked, 39.8s Time] [2021-11-19 14:10:45,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18367 states. [2021-11-19 14:10:45,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18367 to 7255. [2021-11-19 14:10:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7255 states, 5145 states have (on average 1.331584062196307) internal successors, (6851), 5216 states have internal predecessors, (6851), 1667 states have call successors, (1667), 443 states have call predecessors, (1667), 442 states have return successors, (1665), 1665 states have call predecessors, (1665), 1665 states have call successors, (1665) [2021-11-19 14:10:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7255 states to 7255 states and 10183 transitions. [2021-11-19 14:10:45,830 INFO L78 Accepts]: Start accepts. Automaton has 7255 states and 10183 transitions. Word has length 242 [2021-11-19 14:10:45,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:45,830 INFO L470 AbstractCegarLoop]: Abstraction has 7255 states and 10183 transitions. [2021-11-19 14:10:45,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 14:10:45,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7255 states and 10183 transitions. [2021-11-19 14:10:45,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-19 14:10:45,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:45,836 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:10:45,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:46,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:46,050 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:10:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash -937424640, now seen corresponding path program 1 times [2021-11-19 14:10:46,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:46,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132097606] [2021-11-19 14:10:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:46,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:46,053 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:46,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:10:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:49,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2872 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:10:49,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:51,708 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-19 14:10:51,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-19 14:10:53,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:53,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132097606] [2021-11-19 14:10:53,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132097606] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:53,358 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:10:53,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 14:10:53,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909688519] [2021-11-19 14:10:53,358 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:53,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:10:53,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:53,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:10:53,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:10:53,360 INFO L87 Difference]: Start difference. First operand 7255 states and 10183 transitions. Second operand has 7 states, 7 states have (on average 25.0) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:10:55,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:59,473 INFO L93 Difference]: Finished difference Result 20191 states and 28523 transitions. [2021-11-19 14:10:59,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:10:59,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 249 [2021-11-19 14:10:59,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:59,508 INFO L225 Difference]: With dead ends: 20191 [2021-11-19 14:10:59,508 INFO L226 Difference]: Without dead ends: 12992 [2021-11-19 14:10:59,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:10:59,526 INFO L933 BasicCegarLoop]: 14333 mSDtfsCounter, 7409 mSDsluCounter, 64253 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7410 SdHoareTripleChecker+Valid, 78586 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:59,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7410 Valid, 78586 Invalid, 184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 139 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-19 14:10:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12992 states. [2021-11-19 14:11:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12992 to 7261. [2021-11-19 14:11:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7261 states, 5148 states have (on average 1.3313908313908314) internal successors, (6854), 5219 states have internal predecessors, (6854), 1669 states have call successors, (1669), 443 states have call predecessors, (1669), 443 states have return successors, (1668), 1668 states have call predecessors, (1668), 1667 states have call successors, (1668) [2021-11-19 14:11:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7261 states to 7261 states and 10191 transitions. [2021-11-19 14:11:00,198 INFO L78 Accepts]: Start accepts. Automaton has 7261 states and 10191 transitions. Word has length 249 [2021-11-19 14:11:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:11:00,199 INFO L470 AbstractCegarLoop]: Abstraction has 7261 states and 10191 transitions. [2021-11-19 14:11:00,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 14:11:00,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7261 states and 10191 transitions. [2021-11-19 14:11:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-19 14:11:00,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:11:00,205 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:11:00,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:11:00,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:11:00,417 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:11:00,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:11:00,418 INFO L85 PathProgramCache]: Analyzing trace with hash 27642039, now seen corresponding path program 1 times [2021-11-19 14:11:00,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:11:00,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173043083] [2021-11-19 14:11:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:00,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:11:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:11:00,421 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:11:00,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:11:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:03,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2906 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:11:03,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-19 14:11:06,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-19 14:11:09,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:11:09,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173043083] [2021-11-19 14:11:09,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173043083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:11:09,233 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:11:09,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 14:11:09,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520047149] [2021-11-19 14:11:09,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:11:09,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:11:09,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:11:09,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:11:09,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:11:09,235 INFO L87 Difference]: Start difference. First operand 7261 states and 10191 transitions. Second operand has 14 states, 14 states have (on average 13.571428571428571) internal successors, (190), 12 states have internal predecessors, (190), 6 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (47), 8 states have call predecessors, (47), 6 states have call successors, (47) [2021-11-19 14:11:11,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:12,764 INFO L93 Difference]: Finished difference Result 25828 states and 36602 transitions. [2021-11-19 14:12:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-19 14:12:12,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.571428571428571) internal successors, (190), 12 states have internal predecessors, (190), 6 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (47), 8 states have call predecessors, (47), 6 states have call successors, (47) Word has length 261 [2021-11-19 14:12:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:12,814 INFO L225 Difference]: With dead ends: 25828 [2021-11-19 14:12:12,814 INFO L226 Difference]: Without dead ends: 18623 [2021-11-19 14:12:12,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=235, Invalid=1325, Unknown=0, NotChecked=0, Total=1560 [2021-11-19 14:12:12,833 INFO L933 BasicCegarLoop]: 15482 mSDtfsCounter, 19524 mSDsluCounter, 119978 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 2549 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19545 SdHoareTripleChecker+Valid, 135460 SdHoareTripleChecker+Invalid, 5741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2549 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:12,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19545 Valid, 135460 Invalid, 5741 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2549 Valid, 3191 Invalid, 1 Unknown, 0 Unchecked, 54.8s Time] [2021-11-19 14:12:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18623 states. [2021-11-19 14:12:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18623 to 7266. [2021-11-19 14:12:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 5149 states have (on average 1.3313264711594484) internal successors, (6855), 5220 states have internal predecessors, (6855), 1673 states have call successors, (1673), 443 states have call predecessors, (1673), 443 states have return successors, (1672), 1672 states have call predecessors, (1672), 1671 states have call successors, (1672) [2021-11-19 14:12:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 10200 transitions. [2021-11-19 14:12:13,649 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 10200 transitions. Word has length 261 [2021-11-19 14:12:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:13,650 INFO L470 AbstractCegarLoop]: Abstraction has 7266 states and 10200 transitions. [2021-11-19 14:12:13,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.571428571428571) internal successors, (190), 12 states have internal predecessors, (190), 6 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (47), 8 states have call predecessors, (47), 6 states have call successors, (47) [2021-11-19 14:12:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 10200 transitions. [2021-11-19 14:12:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-19 14:12:13,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:13,654 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:12:13,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:13,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:13,877 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:13,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1785069898, now seen corresponding path program 1 times [2021-11-19 14:12:13,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:13,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504052202] [2021-11-19 14:12:13,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:13,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:13,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:13,881 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:13,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:12:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:17,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 3049 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:12:17,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-19 14:12:20,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 14:12:21,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:21,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504052202] [2021-11-19 14:12:21,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504052202] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:12:21,544 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:12:21,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:12:21,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491413177] [2021-11-19 14:12:21,544 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:21,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:12:21,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:21,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:12:21,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:12:21,546 INFO L87 Difference]: Start difference. First operand 7266 states and 10200 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 14:12:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:22,404 INFO L93 Difference]: Finished difference Result 14477 states and 20316 transitions. [2021-11-19 14:12:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:12:22,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 268 [2021-11-19 14:12:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:22,426 INFO L225 Difference]: With dead ends: 14477 [2021-11-19 14:12:22,427 INFO L226 Difference]: Without dead ends: 7267 [2021-11-19 14:12:22,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:12:22,441 INFO L933 BasicCegarLoop]: 7163 mSDtfsCounter, 0 mSDsluCounter, 7158 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14321 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:22,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14321 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:12:22,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7267 states. [2021-11-19 14:12:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7267 to 7267. [2021-11-19 14:12:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7267 states, 5150 states have (on average 1.33126213592233) internal successors, (6856), 5221 states have internal predecessors, (6856), 1673 states have call successors, (1673), 443 states have call predecessors, (1673), 443 states have return successors, (1672), 1672 states have call predecessors, (1672), 1671 states have call successors, (1672) [2021-11-19 14:12:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7267 states to 7267 states and 10201 transitions. [2021-11-19 14:12:23,131 INFO L78 Accepts]: Start accepts. Automaton has 7267 states and 10201 transitions. Word has length 268 [2021-11-19 14:12:23,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:23,131 INFO L470 AbstractCegarLoop]: Abstraction has 7267 states and 10201 transitions. [2021-11-19 14:12:23,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 14:12:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 7267 states and 10201 transitions. [2021-11-19 14:12:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-19 14:12:23,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:23,135 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:12:23,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:23,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:23,358 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:23,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1825006304, now seen corresponding path program 1 times [2021-11-19 14:12:23,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:23,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141983024] [2021-11-19 14:12:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:23,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:23,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:23,361 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:23,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:12:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:26,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 3058 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:12:26,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-19 14:12:29,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 14:12:30,910 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:30,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141983024] [2021-11-19 14:12:30,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141983024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:12:30,910 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:12:30,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:12:30,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995338378] [2021-11-19 14:12:30,911 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:30,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:12:30,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:12:30,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:12:30,913 INFO L87 Difference]: Start difference. First operand 7267 states and 10201 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 14:12:31,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:31,953 INFO L93 Difference]: Finished difference Result 14480 states and 20319 transitions. [2021-11-19 14:12:31,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:12:31,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 272 [2021-11-19 14:12:31,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:31,975 INFO L225 Difference]: With dead ends: 14480 [2021-11-19 14:12:31,975 INFO L226 Difference]: Without dead ends: 7269 [2021-11-19 14:12:31,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:12:31,989 INFO L933 BasicCegarLoop]: 7162 mSDtfsCounter, 1 mSDsluCounter, 14316 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21478 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:31,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 21478 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:12:31,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2021-11-19 14:12:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 7268. [2021-11-19 14:12:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7268 states, 5151 states have (on average 1.3311978256649195) internal successors, (6857), 5222 states have internal predecessors, (6857), 1673 states have call successors, (1673), 443 states have call predecessors, (1673), 443 states have return successors, (1672), 1672 states have call predecessors, (1672), 1671 states have call successors, (1672) [2021-11-19 14:12:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7268 states to 7268 states and 10202 transitions. [2021-11-19 14:12:32,602 INFO L78 Accepts]: Start accepts. Automaton has 7268 states and 10202 transitions. Word has length 272 [2021-11-19 14:12:32,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:32,604 INFO L470 AbstractCegarLoop]: Abstraction has 7268 states and 10202 transitions. [2021-11-19 14:12:32,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 14:12:32,604 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states and 10202 transitions. [2021-11-19 14:12:32,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-19 14:12:32,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:32,608 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:12:32,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:32,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:32,830 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:32,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:32,830 INFO L85 PathProgramCache]: Analyzing trace with hash 71973154, now seen corresponding path program 1 times [2021-11-19 14:12:32,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:32,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876195394] [2021-11-19 14:12:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:32,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:32,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:32,835 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:32,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:12:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:36,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:12:36,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-19 14:12:39,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 14:12:41,564 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:41,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876195394] [2021-11-19 14:12:41,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876195394] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:12:41,564 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:12:41,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:12:41,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352331861] [2021-11-19 14:12:41,564 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:41,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:12:41,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:12:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:12:41,566 INFO L87 Difference]: Start difference. First operand 7268 states and 10202 transitions. Second operand has 10 states, 10 states have (on average 19.3) internal successors, (193), 8 states have internal predecessors, (193), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (48), 4 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:12:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:44,073 INFO L93 Difference]: Finished difference Result 14487 states and 20329 transitions. [2021-11-19 14:12:44,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:12:44,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.3) internal successors, (193), 8 states have internal predecessors, (193), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (48), 4 states have call predecessors, (48), 2 states have call successors, (48) Word has length 272 [2021-11-19 14:12:44,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:44,093 INFO L225 Difference]: With dead ends: 14487 [2021-11-19 14:12:44,093 INFO L226 Difference]: Without dead ends: 7275 [2021-11-19 14:12:44,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:12:44,112 INFO L933 BasicCegarLoop]: 7166 mSDtfsCounter, 10 mSDsluCounter, 42866 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 50032 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:44,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 50032 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 14:12:44,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7275 states. [2021-11-19 14:12:44,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7275 to 7273. [2021-11-19 14:12:44,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7273 states, 5155 states have (on average 1.33094083414161) internal successors, (6861), 5226 states have internal predecessors, (6861), 1673 states have call successors, (1673), 443 states have call predecessors, (1673), 444 states have return successors, (1674), 1673 states have call predecessors, (1674), 1671 states have call successors, (1674) [2021-11-19 14:12:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7273 states to 7273 states and 10208 transitions. [2021-11-19 14:12:44,730 INFO L78 Accepts]: Start accepts. Automaton has 7273 states and 10208 transitions. Word has length 272 [2021-11-19 14:12:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:44,731 INFO L470 AbstractCegarLoop]: Abstraction has 7273 states and 10208 transitions. [2021-11-19 14:12:44,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.3) internal successors, (193), 8 states have internal predecessors, (193), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (48), 4 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:12:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7273 states and 10208 transitions. [2021-11-19 14:12:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-19 14:12:44,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:44,735 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-19 14:12:44,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:44,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:44,950 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash -357685152, now seen corresponding path program 1 times [2021-11-19 14:12:44,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:44,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6958432] [2021-11-19 14:12:44,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:44,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:44,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:44,955 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:44,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:12:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:48,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 3064 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:12:48,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-19 14:12:51,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 14:12:54,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:54,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6958432] [2021-11-19 14:12:54,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6958432] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:12:54,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:12:54,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-19 14:12:54,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274779772] [2021-11-19 14:12:54,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:54,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:12:54,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:54,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:12:54,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:12:54,247 INFO L87 Difference]: Start difference. First operand 7273 states and 10208 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:12:56,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:56,423 INFO L93 Difference]: Finished difference Result 14505 states and 20362 transitions. [2021-11-19 14:12:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:12:56,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 272 [2021-11-19 14:12:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:56,448 INFO L225 Difference]: With dead ends: 14505 [2021-11-19 14:12:56,448 INFO L226 Difference]: Without dead ends: 7288 [2021-11-19 14:12:56,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:12:56,462 INFO L933 BasicCegarLoop]: 7169 mSDtfsCounter, 7 mSDsluCounter, 28646 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35815 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:56,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 35815 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 14:12:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7288 states. [2021-11-19 14:12:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7288 to 7278. [2021-11-19 14:12:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7278 states, 5159 states have (on average 1.3306842411320023) internal successors, (6865), 5230 states have internal predecessors, (6865), 1673 states have call successors, (1673), 443 states have call predecessors, (1673), 445 states have return successors, (1683), 1674 states have call predecessors, (1683), 1671 states have call successors, (1683) [2021-11-19 14:12:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 10221 transitions. [2021-11-19 14:12:57,217 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 10221 transitions. Word has length 272 [2021-11-19 14:12:57,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:57,218 INFO L470 AbstractCegarLoop]: Abstraction has 7278 states and 10221 transitions. [2021-11-19 14:12:57,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:12:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 10221 transitions. [2021-11-19 14:12:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-19 14:12:57,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:57,221 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 3, 3, 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] [2021-11-19 14:12:57,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:57,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:57,423 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:57,424 INFO L85 PathProgramCache]: Analyzing trace with hash -292860901, now seen corresponding path program 1 times [2021-11-19 14:12:57,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:57,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121822843] [2021-11-19 14:12:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:57,427 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:57,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:57,429 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:57,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:13:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:01,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 3079 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:13:01,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-19 14:13:03,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:13:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-19 14:13:04,819 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:13:04,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121822843] [2021-11-19 14:13:04,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121822843] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:13:04,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:13:04,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:13:04,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087120630] [2021-11-19 14:13:04,819 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:13:04,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:13:04,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:13:04,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:13:04,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:13:04,820 INFO L87 Difference]: Start difference. First operand 7278 states and 10221 transitions. Second operand has 8 states, 8 states have (on average 23.625) internal successors, (189), 8 states have internal predecessors, (189), 4 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-19 14:13:07,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:13:07,841 INFO L93 Difference]: Finished difference Result 14534 states and 20409 transitions. [2021-11-19 14:13:07,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:13:07,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 8 states have internal predecessors, (189), 4 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 275 [2021-11-19 14:13:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:13:07,863 INFO L225 Difference]: With dead ends: 14534 [2021-11-19 14:13:07,863 INFO L226 Difference]: Without dead ends: 7312 [2021-11-19 14:13:07,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:13:07,877 INFO L933 BasicCegarLoop]: 7188 mSDtfsCounter, 43 mSDsluCounter, 21460 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 28648 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:13:07,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 28648 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 14:13:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-11-19 14:13:08,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7285. [2021-11-19 14:13:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7285 states, 5164 states have (on average 1.330557707203718) internal successors, (6871), 5235 states have internal predecessors, (6871), 1675 states have call successors, (1675), 443 states have call predecessors, (1675), 445 states have return successors, (1685), 1676 states have call predecessors, (1685), 1673 states have call successors, (1685) [2021-11-19 14:13:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7285 states to 7285 states and 10231 transitions. [2021-11-19 14:13:08,497 INFO L78 Accepts]: Start accepts. Automaton has 7285 states and 10231 transitions. Word has length 275 [2021-11-19 14:13:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:13:08,497 INFO L470 AbstractCegarLoop]: Abstraction has 7285 states and 10231 transitions. [2021-11-19 14:13:08,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 8 states have internal predecessors, (189), 4 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-19 14:13:08,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7285 states and 10231 transitions. [2021-11-19 14:13:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-19 14:13:08,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:13:08,500 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 3, 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] [2021-11-19 14:13:08,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 14:13:08,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:13:08,701 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:13:08,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:13:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash 710753062, now seen corresponding path program 1 times [2021-11-19 14:13:08,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:13:08,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140113000] [2021-11-19 14:13:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:08,704 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:13:08,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:13:08,705 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:13:08,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:13:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:13,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:13:13,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-19 14:13:17,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:13:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-11-19 14:13:24,963 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:13:24,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140113000] [2021-11-19 14:13:24,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140113000] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:13:24,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:13:24,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-19 14:13:24,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395899054] [2021-11-19 14:13:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:13:24,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:13:24,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:13:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:13:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:13:24,965 INFO L87 Difference]: Start difference. First operand 7285 states and 10231 transitions. Second operand has 9 states, 9 states have (on average 22.77777777777778) internal successors, (205), 6 states have internal predecessors, (205), 2 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (39), 5 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 14:13:26,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:13:26,620 INFO L93 Difference]: Finished difference Result 14552 states and 20447 transitions. [2021-11-19 14:13:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:13:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.77777777777778) internal successors, (205), 6 states have internal predecessors, (205), 2 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (39), 5 states have call predecessors, (39), 2 states have call successors, (39) Word has length 338 [2021-11-19 14:13:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:13:26,645 INFO L225 Difference]: With dead ends: 14552 [2021-11-19 14:13:26,645 INFO L226 Difference]: Without dead ends: 7323 [2021-11-19 14:13:26,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:13:26,660 INFO L933 BasicCegarLoop]: 7180 mSDtfsCounter, 27 mSDsluCounter, 50220 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 57400 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:13:26,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 57400 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:13:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7323 states. [2021-11-19 14:13:27,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7323 to 7293. [2021-11-19 14:13:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 5170 states have (on average 1.330174081237911) internal successors, (6877), 5240 states have internal predecessors, (6877), 1675 states have call successors, (1675), 443 states have call predecessors, (1675), 447 states have return successors, (1705), 1679 states have call predecessors, (1705), 1673 states have call successors, (1705) [2021-11-19 14:13:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 10257 transitions. [2021-11-19 14:13:27,492 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 10257 transitions. Word has length 338 [2021-11-19 14:13:27,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:13:27,492 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 10257 transitions. [2021-11-19 14:13:27,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.77777777777778) internal successors, (205), 6 states have internal predecessors, (205), 2 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (39), 5 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 14:13:27,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 10257 transitions. [2021-11-19 14:13:27,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-11-19 14:13:27,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:13:27,495 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 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] [2021-11-19 14:13:27,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-11-19 14:13:27,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:13:27,696 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:13:27,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:13:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 91824735, now seen corresponding path program 2 times [2021-11-19 14:13:27,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:13:27,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808823121] [2021-11-19 14:13:27,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:13:27,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:13:27,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:13:27,701 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:13:27,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:13:29,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 14:13:29,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:13:29,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:13:29,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 14:13:31,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:13:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 14:13:31,863 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:13:31,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808823121] [2021-11-19 14:13:31,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808823121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:13:31,863 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:13:31,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-19 14:13:31,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235529656] [2021-11-19 14:13:31,863 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:13:31,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:13:31,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:13:31,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:13:31,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:13:31,865 INFO L87 Difference]: Start difference. First operand 7293 states and 10257 transitions. Second operand has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 14:13:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:13:33,674 INFO L93 Difference]: Finished difference Result 14977 states and 21308 transitions. [2021-11-19 14:13:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:13:33,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 341 [2021-11-19 14:13:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:13:33,709 INFO L225 Difference]: With dead ends: 14977 [2021-11-19 14:13:33,709 INFO L226 Difference]: Without dead ends: 7740 [2021-11-19 14:13:33,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:13:33,733 INFO L933 BasicCegarLoop]: 7279 mSDtfsCounter, 138 mSDsluCounter, 21629 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 28908 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:13:33,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 28908 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:13:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2021-11-19 14:13:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7413. [2021-11-19 14:13:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 5238 states have (on average 1.3274150439098893) internal successors, (6953), 5308 states have internal predecessors, (6953), 1727 states have call successors, (1727), 443 states have call predecessors, (1727), 447 states have return successors, (1757), 1731 states have call predecessors, (1757), 1725 states have call successors, (1757) [2021-11-19 14:13:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 10437 transitions. [2021-11-19 14:13:34,463 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 10437 transitions. Word has length 341 [2021-11-19 14:13:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:13:34,464 INFO L470 AbstractCegarLoop]: Abstraction has 7413 states and 10437 transitions. [2021-11-19 14:13:34,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 14:13:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 10437 transitions. [2021-11-19 14:13:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-11-19 14:13:34,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:13:34,466 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 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] [2021-11-19 14:13:34,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:13:34,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:13:34,667 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:13:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:13:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1597119007, now seen corresponding path program 1 times [2021-11-19 14:13:34,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:13:34,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679141824] [2021-11-19 14:13:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:34,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:13:34,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:13:34,671 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:13:34,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:13:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:38,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 3262 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:13:38,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-19 14:13:41,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:13:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 14:13:43,005 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:13:43,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679141824] [2021-11-19 14:13:43,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679141824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:13:43,005 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:13:43,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:13:43,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536423140] [2021-11-19 14:13:43,006 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:13:43,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:13:43,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:13:43,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:13:43,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:13:43,007 INFO L87 Difference]: Start difference. First operand 7413 states and 10437 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-19 14:13:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:13:47,259 INFO L93 Difference]: Finished difference Result 15446 states and 21852 transitions. [2021-11-19 14:13:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:13:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 341 [2021-11-19 14:13:47,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:13:47,285 INFO L225 Difference]: With dead ends: 15446 [2021-11-19 14:13:47,285 INFO L226 Difference]: Without dead ends: 8089 [2021-11-19 14:13:47,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:13:47,304 INFO L933 BasicCegarLoop]: 7700 mSDtfsCounter, 704 mSDsluCounter, 7830 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 15530 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:13:47,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [892 Valid, 15530 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-19 14:13:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2021-11-19 14:13:47,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 7431. [2021-11-19 14:13:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7431 states, 5254 states have (on average 1.326798629615531) internal successors, (6971), 5324 states have internal predecessors, (6971), 1729 states have call successors, (1729), 443 states have call predecessors, (1729), 447 states have return successors, (1759), 1733 states have call predecessors, (1759), 1727 states have call successors, (1759) [2021-11-19 14:13:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7431 states to 7431 states and 10459 transitions. [2021-11-19 14:13:47,950 INFO L78 Accepts]: Start accepts. Automaton has 7431 states and 10459 transitions. Word has length 341 [2021-11-19 14:13:47,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:13:47,950 INFO L470 AbstractCegarLoop]: Abstraction has 7431 states and 10459 transitions. [2021-11-19 14:13:47,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-19 14:13:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7431 states and 10459 transitions. [2021-11-19 14:13:47,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-11-19 14:13:47,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:13:47,953 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 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] [2021-11-19 14:13:48,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:13:48,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:13:48,166 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:13:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:13:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash 825662627, now seen corresponding path program 1 times [2021-11-19 14:13:48,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:13:48,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775822128] [2021-11-19 14:13:48,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:48,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:13:48,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:13:48,171 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:13:48,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:13:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:52,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 3339 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:13:52,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-11-19 14:13:55,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:13:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-19 14:13:57,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:13:57,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775822128] [2021-11-19 14:13:57,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775822128] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:13:57,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1561856477] [2021-11-19 14:13:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:57,992 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:13:57,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:13:57,994 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:13:57,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2021-11-19 14:14:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:00,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 3339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:14:00,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-19 14:14:01,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2021-11-19 14:14:02,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1561856477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:02,655 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:14:02,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-11-19 14:14:02,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839803115] [2021-11-19 14:14:02,656 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:02,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:14:02,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:02,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:14:02,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:14:02,657 INFO L87 Difference]: Start difference. First operand 7431 states and 10459 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:14:04,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:14:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:05,382 INFO L93 Difference]: Finished difference Result 7433 states and 10460 transitions. [2021-11-19 14:14:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:14:05,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 364 [2021-11-19 14:14:05,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:05,406 INFO L225 Difference]: With dead ends: 7433 [2021-11-19 14:14:05,406 INFO L226 Difference]: Without dead ends: 7430 [2021-11-19 14:14:05,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1452 GetRequests, 1447 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:14:05,413 INFO L933 BasicCegarLoop]: 7164 mSDtfsCounter, 146 mSDsluCounter, 7016 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 14180 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:05,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 14180 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:14:05,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7430 states. [2021-11-19 14:14:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7430 to 7430. [2021-11-19 14:14:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5254 states have (on average 1.3260373049105443) internal successors, (6967), 5323 states have internal predecessors, (6967), 1728 states have call successors, (1728), 443 states have call predecessors, (1728), 447 states have return successors, (1759), 1733 states have call predecessors, (1759), 1727 states have call successors, (1759) [2021-11-19 14:14:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10454 transitions. [2021-11-19 14:14:06,091 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10454 transitions. Word has length 364 [2021-11-19 14:14:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:06,091 INFO L470 AbstractCegarLoop]: Abstraction has 7430 states and 10454 transitions. [2021-11-19 14:14:06,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:14:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10454 transitions. [2021-11-19 14:14:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2021-11-19 14:14:06,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:06,115 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:14:06,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2021-11-19 14:14:06,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-11-19 14:14:06,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:06,530 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:06,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:06,530 INFO L85 PathProgramCache]: Analyzing trace with hash -872059922, now seen corresponding path program 1 times [2021-11-19 14:14:06,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:06,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428159716] [2021-11-19 14:14:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:06,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:06,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:06,534 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:06,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:14:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:11,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 4010 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:14:11,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2021-11-19 14:14:18,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2021-11-19 14:14:21,911 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:21,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428159716] [2021-11-19 14:14:21,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428159716] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:14:21,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1544174891] [2021-11-19 14:14:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:21,911 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:14:21,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:14:21,912 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:14:21,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2021-11-19 14:14:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:24,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 4010 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:14:24,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-19 14:14:38,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-19 14:14:44,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1544174891] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:44,962 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:14:44,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [4, 4] total 8 [2021-11-19 14:14:44,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374934028] [2021-11-19 14:14:44,963 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:44,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:14:44,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:44,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:14:44,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:14:44,965 INFO L87 Difference]: Start difference. First operand 7430 states and 10454 transitions. Second operand has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 4 states have call successors, (140), 4 states have call predecessors, (140), 3 states have return successors, (131), 4 states have call predecessors, (131), 4 states have call successors, (131) [2021-11-19 14:14:45,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:45,994 INFO L93 Difference]: Finished difference Result 14804 states and 20822 transitions. [2021-11-19 14:14:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:14:45,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 4 states have call successors, (140), 4 states have call predecessors, (140), 3 states have return successors, (131), 4 states have call predecessors, (131), 4 states have call successors, (131) Word has length 587 [2021-11-19 14:14:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:46,027 INFO L225 Difference]: With dead ends: 14804 [2021-11-19 14:14:46,027 INFO L226 Difference]: Without dead ends: 7430 [2021-11-19 14:14:46,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2344 GetRequests, 2338 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:14:46,052 INFO L933 BasicCegarLoop]: 7160 mSDtfsCounter, 6951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6951 SdHoareTripleChecker+Valid, 7160 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:46,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6951 Valid, 7160 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:14:46,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7430 states. [2021-11-19 14:14:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7430 to 7430. [2021-11-19 14:14:46,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5254 states have (on average 1.3258469737342977) internal successors, (6966), 5323 states have internal predecessors, (6966), 1728 states have call successors, (1728), 443 states have call predecessors, (1728), 447 states have return successors, (1759), 1733 states have call predecessors, (1759), 1727 states have call successors, (1759) [2021-11-19 14:14:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10453 transitions. [2021-11-19 14:14:46,746 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10453 transitions. Word has length 587 [2021-11-19 14:14:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:46,746 INFO L470 AbstractCegarLoop]: Abstraction has 7430 states and 10453 transitions. [2021-11-19 14:14:46,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 4 states have call successors, (140), 4 states have call predecessors, (140), 3 states have return successors, (131), 4 states have call predecessors, (131), 4 states have call successors, (131) [2021-11-19 14:14:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10453 transitions. [2021-11-19 14:14:46,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-11-19 14:14:46,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:46,766 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-11-19 14:14:46,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:47,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2021-11-19 14:14:47,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:14:47,170 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:14:47,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:47,171 INFO L85 PathProgramCache]: Analyzing trace with hash -318941798, now seen corresponding path program 1 times [2021-11-19 14:14:47,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:47,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254948165] [2021-11-19 14:14:47,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:47,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:47,175 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:47,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 14:14:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:52,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 4153 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:14:52,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-11-19 14:14:59,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:02,732 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2021-11-19 14:15:02,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:02,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254948165] [2021-11-19 14:15:02,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254948165] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:15:02,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1758795675] [2021-11-19 14:15:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:02,733 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:02,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:15:02,734 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:15:02,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-11-19 14:15:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:05,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 4153 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:15:05,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-11-19 14:15:10,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2021-11-19 14:15:12,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1758795675] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:12,923 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:15:12,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4, 4] total 10 [2021-11-19 14:15:12,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414322122] [2021-11-19 14:15:12,924 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:12,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:15:12,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:12,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:15:12,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:15:12,926 INFO L87 Difference]: Start difference. First operand 7430 states and 10453 transitions. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 2 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:15:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:13,913 INFO L93 Difference]: Finished difference Result 14815 states and 20836 transitions. [2021-11-19 14:15:13,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:15:13,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 2 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 617 [2021-11-19 14:15:13,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:13,933 INFO L225 Difference]: With dead ends: 14815 [2021-11-19 14:15:13,933 INFO L226 Difference]: Without dead ends: 7441 [2021-11-19 14:15:13,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2465 GetRequests, 2456 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:15:13,948 INFO L933 BasicCegarLoop]: 7174 mSDtfsCounter, 16 mSDsluCounter, 14331 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21505 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:13,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 21505 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:15:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7441 states. [2021-11-19 14:15:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7441 to 7432. [2021-11-19 14:15:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7432 states, 5256 states have (on average 1.32572298325723) internal successors, (6968), 5325 states have internal predecessors, (6968), 1728 states have call successors, (1728), 443 states have call predecessors, (1728), 447 states have return successors, (1759), 1733 states have call predecessors, (1759), 1727 states have call successors, (1759) [2021-11-19 14:15:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7432 states to 7432 states and 10455 transitions. [2021-11-19 14:15:14,614 INFO L78 Accepts]: Start accepts. Automaton has 7432 states and 10455 transitions. Word has length 617 [2021-11-19 14:15:14,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:14,614 INFO L470 AbstractCegarLoop]: Abstraction has 7432 states and 10455 transitions. [2021-11-19 14:15:14,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 2 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:15:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7432 states and 10455 transitions. [2021-11-19 14:15:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2021-11-19 14:15:14,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:14,634 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-11-19 14:15:14,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2021-11-19 14:15:14,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:15,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:15,035 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:15,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1363157576, now seen corresponding path program 1 times [2021-11-19 14:15:15,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:15,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236436139] [2021-11-19 14:15:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:15,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:15,040 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:15,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 14:15:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:20,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 4196 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:15:20,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-19 14:15:26,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2021-11-19 14:15:30,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:30,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236436139] [2021-11-19 14:15:30,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236436139] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:15:30,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1933911500] [2021-11-19 14:15:30,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:30,444 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:30,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:15:30,445 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:15:30,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2021-11-19 14:15:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:33,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 4196 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:15:33,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-11-19 14:15:37,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2021-11-19 14:15:39,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1933911500] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:39,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:15:39,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [4, 4] total 10 [2021-11-19 14:15:39,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529183048] [2021-11-19 14:15:39,619 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:39,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:15:39,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:39,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:15:39,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:15:39,621 INFO L87 Difference]: Start difference. First operand 7432 states and 10455 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2021-11-19 14:15:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:42,192 INFO L93 Difference]: Finished difference Result 14830 states and 20859 transitions. [2021-11-19 14:15:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:15:42,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 629 [2021-11-19 14:15:42,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:42,212 INFO L225 Difference]: With dead ends: 14830 [2021-11-19 14:15:42,212 INFO L226 Difference]: Without dead ends: 7454 [2021-11-19 14:15:42,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2517 GetRequests, 2504 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:15:42,227 INFO L933 BasicCegarLoop]: 7184 mSDtfsCounter, 21 mSDsluCounter, 28618 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 35802 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:42,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 35802 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 14:15:42,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7454 states. [2021-11-19 14:15:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7454 to 7436. [2021-11-19 14:15:42,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5260 states have (on average 1.3254752851711027) internal successors, (6972), 5329 states have internal predecessors, (6972), 1728 states have call successors, (1728), 443 states have call predecessors, (1728), 447 states have return successors, (1759), 1733 states have call predecessors, (1759), 1727 states have call successors, (1759) [2021-11-19 14:15:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 10459 transitions. [2021-11-19 14:15:42,908 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 10459 transitions. Word has length 629 [2021-11-19 14:15:42,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:42,909 INFO L470 AbstractCegarLoop]: Abstraction has 7436 states and 10459 transitions. [2021-11-19 14:15:42,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2021-11-19 14:15:42,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 10459 transitions. [2021-11-19 14:15:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2021-11-19 14:15:42,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:42,934 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-11-19 14:15:42,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:43,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:43,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:43,342 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:43,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash -784997509, now seen corresponding path program 1 times [2021-11-19 14:15:43,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:43,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867524143] [2021-11-19 14:15:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:43,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:43,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:43,347 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:43,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85587953-099d-43f0-9451-4052141dc666/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:15:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:48,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 4425 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:15:48,670 INFO L286 TraceCheckSpWp]: Computing forward predicates...