./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI --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 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:46:25,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:46:25,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:46:25,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:46:25,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:46:25,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:46:25,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:46:25,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:46:25,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:46:25,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:46:25,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:46:25,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:46:25,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:46:25,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:46:25,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:46:25,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:46:25,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:46:25,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:46:25,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:46:25,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:46:25,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:46:25,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:46:25,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:46:25,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:46:25,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:46:25,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:46:25,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:46:25,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:46:25,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:46:25,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:46:25,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:46:25,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:46:25,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:46:25,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:46:25,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:46:25,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:46:25,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:46:25,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:46:25,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:46:25,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:46:25,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:46:25,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:46:25,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:46:25,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:46:25,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:46:25,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:46:25,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:46:25,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:46:25,619 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:46:25,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:46:25,619 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:46:25,620 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:46:25,621 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:46:25,621 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:46:25,622 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:46:25,622 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:46:25,622 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:46:25,622 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:46:25,623 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:46:25,623 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:46:25,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:46:25,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:46:25,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:46:25,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:46:25,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:46:25,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:46:25,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:46:25,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:46:25,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:46:25,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:46:25,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:46:25,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:46:25,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:46:25,629 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:46:25,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:46:25,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:46:25,630 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:46:25,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:46:25,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:46:25,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:46:25,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a [2022-11-03 01:46:25,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:46:25,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:46:25,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:46:25,992 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:46:25,993 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:46:25,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-03 01:46:26,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/data/fc785e1aa/8ba916786fed4dea85d25fb0b29917bc/FLAG324c2c918 [2022-11-03 01:46:27,094 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:46:27,095 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-03 01:46:27,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/data/fc785e1aa/8ba916786fed4dea85d25fb0b29917bc/FLAG324c2c918 [2022-11-03 01:46:27,453 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/data/fc785e1aa/8ba916786fed4dea85d25fb0b29917bc [2022-11-03 01:46:27,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:46:27,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:46:27,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:46:27,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:46:27,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:46:27,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:46:27" (1/1) ... [2022-11-03 01:46:27,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a45ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:27, skipping insertion in model container [2022-11-03 01:46:27,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:46:27" (1/1) ... [2022-11-03 01:46:27,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:46:27,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:46:30,878 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_2ef9ac6f-2958-4563-916e-c586925323e6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2022-11-03 01:46:30,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:46:31,024 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:46:32,047 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_2ef9ac6f-2958-4563-916e-c586925323e6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2022-11-03 01:46:32,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:46:32,232 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:46:32,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32 WrapperNode [2022-11-03 01:46:32,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:46:32,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:46:32,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:46:32,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:46:32,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:32,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:32,699 INFO L138 Inliner]: procedures = 329, calls = 4496, calls flagged for inlining = 148, calls inlined = 145, statements flattened = 9053 [2022-11-03 01:46:32,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:46:32,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:46:32,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:46:32,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:46:32,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:32,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:32,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:32,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:33,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:33,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:33,202 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:33,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:33,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:46:33,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:46:33,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:46:33,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:46:33,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (1/1) ... [2022-11-03 01:46:33,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:46:33,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:46:33,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:46:33,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9ac6f-2958-4563-916e-c586925323e6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:46:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure ips_detect [2022-11-03 01:46:33,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_detect [2022-11-03 01:46:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure ips_done [2022-11-03 01:46:33,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_done [2022-11-03 01:46:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_copp [2022-11-03 01:46:33,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_copp [2022-11-03 01:46:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_abort [2022-11-03 01:46:33,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_abort [2022-11-03 01:46:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-03 01:46:33,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-03 01:46:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:46:33,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:46:33,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 01:46:33,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 01:46:33,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:46:33,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:46:33,492 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_cmd [2022-11-03 01:46:33,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_cmd [2022-11-03 01:46:33,492 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-03 01:46:33,492 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-03 01:46:33,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:46:33,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:46:33,493 INFO L130 BoogieDeclarations]: Found specification of procedure ips_allocatescbs [2022-11-03 01:46:33,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_allocatescbs [2022-11-03 01:46:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure do_ipsintr [2022-11-03 01:46:33,494 INFO L138 BoogieDeclarations]: Found implementation of procedure do_ipsintr [2022-11-03 01:46:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_copperhead [2022-11-03 01:46:33,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_copperhead [2022-11-03 01:46:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 01:46:33,495 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 01:46:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure le32_add_cpu [2022-11-03 01:46:33,495 INFO L138 BoogieDeclarations]: Found implementation of procedure le32_add_cpu [2022-11-03 01:46:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 01:46:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 01:46:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure ips_freescb [2022-11-03 01:46:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_freescb [2022-11-03 01:46:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 01:46:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 01:46:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure ips_free_flash_copperhead [2022-11-03 01:46:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_free_flash_copperhead [2022-11-03 01:46:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:46:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:46:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isintr_morpheus [2022-11-03 01:46:33,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isintr_morpheus [2022-11-03 01:46:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_scb_head [2022-11-03 01:46:33,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_scb_head [2022-11-03 01:46:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure ips_slave_configure [2022-11-03 01:46:33,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_slave_configure [2022-11-03 01:46:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:46:33,502 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:46:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-03 01:46:33,502 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-03 01:46:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_5 [2022-11-03 01:46:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_5 [2022-11-03 01:46:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 01:46:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 01:46:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure ips_putq_scb_head [2022-11-03 01:46:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_putq_scb_head [2022-11-03 01:46:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:46:33,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:46:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure ips_hainit [2022-11-03 01:46:33,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_hainit [2022-11-03 01:46:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:46:33,507 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:46:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:46:33,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:46:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-03 01:46:33,508 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-03 01:46:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:46:33,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:46:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure ips_wait [2022-11-03 01:46:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_wait [2022-11-03 01:46:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-11-03 01:46:33,510 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-11-03 01:46:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure ips_register_scsi [2022-11-03 01:46:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_register_scsi [2022-11-03 01:46:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_id [2022-11-03 01:46:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_id [2022-11-03 01:46:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure ips_readwrite_page5 [2022-11-03 01:46:33,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_readwrite_page5 [2022-11-03 01:46:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 01:46:33,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 01:46:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flush_and_reset [2022-11-03 01:46:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flush_and_reset [2022-11-03 01:46:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_wait [2022-11-03 01:46:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_wait [2022-11-03 01:46:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_wait [2022-11-03 01:46:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_wait [2022-11-03 01:46:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_morpheus [2022-11-03 01:46:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_morpheus [2022-11-03 01:46:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2022-11-03 01:46:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2022-11-03 01:46:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:46:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure touch_nmi_watchdog [2022-11-03 01:46:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_nmi_watchdog [2022-11-03 01:46:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure ips_online [2022-11-03 01:46:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_online [2022-11-03 01:46:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 01:46:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 01:46:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue_lck [2022-11-03 01:46:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue_lck [2022-11-03 01:46:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:46:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 01:46:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 01:46:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 01:46:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 01:46:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:46:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:46:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure ips_release [2022-11-03 01:46:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_release [2022-11-03 01:46:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-03 01:46:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-11-03 01:46:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-11-03 01:46:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:46:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:46:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 01:46:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 01:46:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 01:46:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 01:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isinit_morpheus [2022-11-03 01:46:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isinit_morpheus [2022-11-03 01:46:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure ips_next [2022-11-03 01:46:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_next [2022-11-03 01:46:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:46:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:46:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 01:46:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 01:46:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:46:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ips_clear_adapter [2022-11-03 01:46:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_clear_adapter [2022-11-03 01:46:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ips_shift_controllers [2022-11-03 01:46:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_shift_controllers [2022-11-03 01:46:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_bios [2022-11-03 01:46:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_bios [2022-11-03 01:46:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:46:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:46:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_subsystem_parameters [2022-11-03 01:46:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_subsystem_parameters [2022-11-03 01:46:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:46:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure ips_write_driver_status [2022-11-03 01:46:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_write_driver_status [2022-11-03 01:46:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:46:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:46:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:46:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_copp_head [2022-11-03 01:46:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_copp_head [2022-11-03 01:46:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ips_free [2022-11-03 01:46:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_free [2022-11-03 01:46:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-03 01:46:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-03 01:46:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase2 [2022-11-03 01:46:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase2 [2022-11-03 01:46:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_adapter_status [2022-11-03 01:46:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_adapter_status [2022-11-03 01:46:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase1 [2022-11-03 01:46:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase1 [2022-11-03 01:46:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:46:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:46:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure ips_scmd_buf_read [2022-11-03 01:46:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_scmd_buf_read [2022-11-03 01:46:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure ips_abort_init [2022-11-03 01:46:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_abort_init [2022-11-03 01:46:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure ipsintr_done [2022-11-03 01:46:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ipsintr_done [2022-11-03 01:46:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure ips_deallocatescbs [2022-11-03 01:46:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_deallocatescbs [2022-11-03 01:46:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 01:46:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 01:46:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:46:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:46:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_scb [2022-11-03 01:46:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_scb [2022-11-03 01:46:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure ips_insert_device [2022-11-03 01:46:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_insert_device [2022-11-03 01:46:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_config [2022-11-03 01:46:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_config [2022-11-03 01:46:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_reset [2022-11-03 01:46:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_reset [2022-11-03 01:46:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 01:46:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 01:46:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure ips_usrcmd [2022-11-03 01:46:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_usrcmd [2022-11-03 01:46:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:46:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 01:46:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 01:46:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure ips_make_passthru [2022-11-03 01:46:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_make_passthru [2022-11-03 01:46:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-03 01:46:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-03 01:46:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead_memio [2022-11-03 01:46:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead_memio [2022-11-03 01:46:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-03 01:46:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-03 01:46:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_wait_head [2022-11-03 01:46:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_wait_head [2022-11-03 01:46:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_reset [2022-11-03 01:46:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_reset [2022-11-03 01:46:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure ips_getscb [2022-11-03 01:46:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_getscb [2022-11-03 01:46:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure ips_info [2022-11-03 01:46:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_info [2022-11-03 01:46:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:46:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:46:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-03 01:46:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-03 01:46:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-03 01:46:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-03 01:46:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure __ips_eh_reset [2022-11-03 01:46:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __ips_eh_reset [2022-11-03 01:46:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 01:46:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 01:46:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:46:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-03 01:46:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-03 01:46:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ips_scmd_buf_write [2022-11-03 01:46:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_scmd_buf_write [2022-11-03 01:46:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 01:46:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 01:46:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ips_fix_ffdc_time [2022-11-03 01:46:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_fix_ffdc_time [2022-11-03 01:46:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-11-03 01:46:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-11-03 01:46:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:46:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reqsen [2022-11-03 01:46:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reqsen [2022-11-03 01:46:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:46:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:46:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:46:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:46:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 01:46:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 01:46:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:46:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:46:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-03 01:46:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-03 01:46:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-03 01:46:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-03 01:46:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:46:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:46:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ips_fill_scb_sg_single [2022-11-03 01:46:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_fill_scb_sg_single [2022-11-03 01:46:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ips_remove_device [2022-11-03 01:46:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_remove_device [2022-11-03 01:46:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ips_show_info [2022-11-03 01:46:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_show_info [2022-11-03 01:46:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure ips_chkstatus [2022-11-03 01:46:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_chkstatus [2022-11-03 01:46:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ips_is_passthru [2022-11-03 01:46:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_is_passthru [2022-11-03 01:46:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue [2022-11-03 01:46:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue [2022-11-03 01:46:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_morpheus [2022-11-03 01:46:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_morpheus [2022-11-03 01:46:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_time [2022-11-03 01:46:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_time [2022-11-03 01:46:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure ips_biosparam [2022-11-03 01:46:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_biosparam [2022-11-03 01:46:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_channel [2022-11-03 01:46:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_channel [2022-11-03 01:46:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure ips_get_bios_version [2022-11-03 01:46:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_get_bios_version [2022-11-03 01:46:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead [2022-11-03 01:46:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead [2022-11-03 01:46:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:46:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:46:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:46:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:46:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 01:46:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 01:46:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:46:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:46:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-03 01:46:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-03 01:46:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:46:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:46:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_copperhead [2022-11-03 01:46:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_copperhead [2022-11-03 01:46:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:46:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 01:46:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 01:46:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:46:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:46:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 01:46:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-03 01:46:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-03 01:46:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:46:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:46:34,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:46:34,972 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:46:38,348 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:51:50,703 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:51:56,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:51:56,554 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 01:51:56,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:56 BoogieIcfgContainer [2022-11-03 01:51:56,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:51:56,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:51:56,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:51:56,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:51:56,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:46:27" (1/3) ... [2022-11-03 01:51:56,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54be7bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:51:56, skipping insertion in model container [2022-11-03 01:51:56,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:32" (2/3) ... [2022-11-03 01:51:56,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54be7bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:51:56, skipping insertion in model container [2022-11-03 01:51:56,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:56" (3/3) ... [2022-11-03 01:51:56,573 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-03 01:51:56,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:51:56,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:51:56,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:51:56,723 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@201b0417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:51:56,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:51:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 2528 states, 1661 states have (on average 1.3816977724262491) internal successors, (2295), 1780 states have internal predecessors, (2295), 738 states have call successors, (738), 134 states have call predecessors, (738), 133 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) [2022-11-03 01:51:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-03 01:51:56,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:56,761 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:56,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:56,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash -44142240, now seen corresponding path program 1 times [2022-11-03 01:51:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:56,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518754913] [2022-11-03 01:51:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:56,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-03 01:51:59,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:59,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518754913] [2022-11-03 01:51:59,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518754913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:59,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:59,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566726560] [2022-11-03 01:51:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:59,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:59,110 INFO L87 Difference]: Start difference. First operand has 2528 states, 1661 states have (on average 1.3816977724262491) internal successors, (2295), 1780 states have internal predecessors, (2295), 738 states have call successors, (738), 134 states have call predecessors, (738), 133 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-03 01:52:01,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:04,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:06,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:07,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:09,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:11,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:15,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:16,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:21,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:24,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:28,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:30,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:32,499 INFO L93 Difference]: Finished difference Result 7412 states and 11276 transitions. [2022-11-03 01:52:32,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:52:32,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2022-11-03 01:52:32,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:32,577 INFO L225 Difference]: With dead ends: 7412 [2022-11-03 01:52:32,577 INFO L226 Difference]: Without dead ends: 4864 [2022-11-03 01:52:32,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:52:32,621 INFO L413 NwaCegarLoop]: 4820 mSDtfsCounter, 3549 mSDsluCounter, 3705 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3557 SdHoareTripleChecker+Valid, 8210 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:32,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3557 Valid, 8210 Invalid, 737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 727 Invalid, 6 Unknown, 0 Unchecked, 32.9s Time] [2022-11-03 01:52:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2022-11-03 01:52:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 4859. [2022-11-03 01:52:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4859 states, 3184 states have (on average 1.3715452261306533) internal successors, (4367), 3389 states have internal predecessors, (4367), 1413 states have call successors, (1413), 262 states have call predecessors, (1413), 261 states have return successors, (1420), 1387 states have call predecessors, (1420), 1412 states have call successors, (1420) [2022-11-03 01:52:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4859 states to 4859 states and 7200 transitions. [2022-11-03 01:52:33,087 INFO L78 Accepts]: Start accepts. Automaton has 4859 states and 7200 transitions. Word has length 144 [2022-11-03 01:52:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:33,090 INFO L495 AbstractCegarLoop]: Abstraction has 4859 states and 7200 transitions. [2022-11-03 01:52:33,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-03 01:52:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4859 states and 7200 transitions. [2022-11-03 01:52:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-03 01:52:33,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:33,116 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:52:33,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:52:33,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:33,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1269853656, now seen corresponding path program 1 times [2022-11-03 01:52:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:33,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612118111] [2022-11-03 01:52:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:33,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-03 01:52:34,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:34,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612118111] [2022-11-03 01:52:34,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612118111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:34,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:52:34,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:52:34,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814547944] [2022-11-03 01:52:34,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:34,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:52:34,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:52:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:52:34,786 INFO L87 Difference]: Start difference. First operand 4859 states and 7200 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 01:52:36,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:39,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:41,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:44,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:45,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:47,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:49,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:51,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:55,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:01,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:03,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:05,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:09,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:11,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:13,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:14,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:14,018 INFO L93 Difference]: Finished difference Result 9693 states and 14364 transitions. [2022-11-03 01:53:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:53:14,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 167 [2022-11-03 01:53:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:14,085 INFO L225 Difference]: With dead ends: 9693 [2022-11-03 01:53:14,086 INFO L226 Difference]: Without dead ends: 4853 [2022-11-03 01:53:14,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:53:14,133 INFO L413 NwaCegarLoop]: 3357 mSDtfsCounter, 1 mSDsluCounter, 7341 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10069 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:14,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10069 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 949 Invalid, 9 Unknown, 0 Unchecked, 38.9s Time] [2022-11-03 01:53:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2022-11-03 01:53:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4853. [2022-11-03 01:53:14,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3180 states have (on average 1.3713836477987422) internal successors, (4361), 3385 states have internal predecessors, (4361), 1412 states have call successors, (1412), 261 states have call predecessors, (1412), 260 states have return successors, (1419), 1386 states have call predecessors, (1419), 1411 states have call successors, (1419) [2022-11-03 01:53:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 7192 transitions. [2022-11-03 01:53:14,698 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 7192 transitions. Word has length 167 [2022-11-03 01:53:14,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:14,699 INFO L495 AbstractCegarLoop]: Abstraction has 4853 states and 7192 transitions. [2022-11-03 01:53:14,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 01:53:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 7192 transitions. [2022-11-03 01:53:14,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-03 01:53:14,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:14,709 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:14,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:53:14,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:14,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1518685605, now seen corresponding path program 1 times [2022-11-03 01:53:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:14,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097933335] [2022-11-03 01:53:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-03 01:53:15,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:15,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097933335] [2022-11-03 01:53:15,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097933335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:15,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:15,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:53:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693712286] [2022-11-03 01:53:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:15,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:15,984 INFO L87 Difference]: Start difference. First operand 4853 states and 7192 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 01:53:18,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:20,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:22,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:24,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:25,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:28,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:30,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:32,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:34,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:36,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:42,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:45,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:47,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:49,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:49,473 INFO L93 Difference]: Finished difference Result 14344 states and 21268 transitions. [2022-11-03 01:53:49,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:49,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 173 [2022-11-03 01:53:49,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:49,575 INFO L225 Difference]: With dead ends: 14344 [2022-11-03 01:53:49,576 INFO L226 Difference]: Without dead ends: 9518 [2022-11-03 01:53:49,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:49,633 INFO L413 NwaCegarLoop]: 4271 mSDtfsCounter, 3481 mSDsluCounter, 3660 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3492 SdHoareTripleChecker+Valid, 7618 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:49,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3492 Valid, 7618 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 678 Invalid, 9 Unknown, 0 Unchecked, 33.1s Time] [2022-11-03 01:53:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9518 states. [2022-11-03 01:53:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9518 to 9508. [2022-11-03 01:53:50,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9508 states, 6230 states have (on average 1.37223113964687) internal successors, (8549), 6642 states have internal predecessors, (8549), 2762 states have call successors, (2762), 516 states have call predecessors, (2762), 515 states have return successors, (2791), 2709 states have call predecessors, (2791), 2761 states have call successors, (2791) [2022-11-03 01:53:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9508 states to 9508 states and 14102 transitions. [2022-11-03 01:53:50,227 INFO L78 Accepts]: Start accepts. Automaton has 9508 states and 14102 transitions. Word has length 173 [2022-11-03 01:53:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:50,227 INFO L495 AbstractCegarLoop]: Abstraction has 9508 states and 14102 transitions. [2022-11-03 01:53:50,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 01:53:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 9508 states and 14102 transitions. [2022-11-03 01:53:50,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-03 01:53:50,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:50,240 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:50,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:53:50,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:50,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1549766778, now seen corresponding path program 1 times [2022-11-03 01:53:50,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:50,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330567429] [2022-11-03 01:53:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-03 01:53:51,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:51,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330567429] [2022-11-03 01:53:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330567429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:51,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:51,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:53:51,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422341617] [2022-11-03 01:53:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:51,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:51,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:51,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:51,374 INFO L87 Difference]: Start difference. First operand 9508 states and 14102 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 01:53:53,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:56,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:58,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:53:59,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:01,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:03,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:06,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:08,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:10,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:14,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:17,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:21,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:23,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:25,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:25,518 INFO L93 Difference]: Finished difference Result 28063 states and 42502 transitions. [2022-11-03 01:54:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:54:25,519 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), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2022-11-03 01:54:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:25,693 INFO L225 Difference]: With dead ends: 28063 [2022-11-03 01:54:25,693 INFO L226 Difference]: Without dead ends: 18582 [2022-11-03 01:54:25,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:54:25,768 INFO L413 NwaCegarLoop]: 5155 mSDtfsCounter, 3565 mSDsluCounter, 3708 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3570 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:25,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3570 Valid, 8554 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 811 Invalid, 9 Unknown, 0 Unchecked, 33.5s Time] [2022-11-03 01:54:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18582 states. [2022-11-03 01:54:27,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18582 to 18519. [2022-11-03 01:54:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18519 states, 12122 states have (on average 1.369163504372216) internal successors, (16597), 12934 states have internal predecessors, (16597), 5387 states have call successors, (5387), 1006 states have call predecessors, (5387), 1009 states have return successors, (6363), 5290 states have call predecessors, (6363), 5386 states have call successors, (6363) [2022-11-03 01:54:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18519 states to 18519 states and 28347 transitions. [2022-11-03 01:54:27,389 INFO L78 Accepts]: Start accepts. Automaton has 18519 states and 28347 transitions. Word has length 179 [2022-11-03 01:54:27,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:27,391 INFO L495 AbstractCegarLoop]: Abstraction has 18519 states and 28347 transitions. [2022-11-03 01:54:27,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 01:54:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 18519 states and 28347 transitions. [2022-11-03 01:54:27,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 01:54:27,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:27,400 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:27,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:54:27,400 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash 663787997, now seen corresponding path program 1 times [2022-11-03 01:54:27,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:27,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600246234] [2022-11-03 01:54:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:27,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-03 01:54:28,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:28,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600246234] [2022-11-03 01:54:28,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600246234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:28,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:28,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:54:28,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697345308] [2022-11-03 01:54:28,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:28,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:54:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:54:28,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:54:28,969 INFO L87 Difference]: Start difference. First operand 18519 states and 28347 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 01:54:31,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:34,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:36,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:38,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:40,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:42,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:44,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:47,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:50,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:53,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:56,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:54:57,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:57,625 INFO L93 Difference]: Finished difference Result 37123 states and 58666 transitions. [2022-11-03 01:54:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:54:57,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 178 [2022-11-03 01:54:57,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:57,760 INFO L225 Difference]: With dead ends: 37123 [2022-11-03 01:54:57,761 INFO L226 Difference]: Without dead ends: 18631 [2022-11-03 01:54:58,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:54:58,051 INFO L413 NwaCegarLoop]: 3353 mSDtfsCounter, 13 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6700 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:58,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6700 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 634 Invalid, 8 Unknown, 0 Unchecked, 28.0s Time] [2022-11-03 01:54:58,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18631 states. [2022-11-03 01:54:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18631 to 18583. [2022-11-03 01:54:58,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18583 states, 12174 states have (on average 1.3695580745851816) internal successors, (16673), 12990 states have internal predecessors, (16673), 5395 states have call successors, (5395), 1006 states have call predecessors, (5395), 1013 states have return successors, (6375), 5298 states have call predecessors, (6375), 5394 states have call successors, (6375) [2022-11-03 01:54:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18583 states to 18583 states and 28443 transitions. [2022-11-03 01:54:59,137 INFO L78 Accepts]: Start accepts. Automaton has 18583 states and 28443 transitions. Word has length 178 [2022-11-03 01:54:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:59,139 INFO L495 AbstractCegarLoop]: Abstraction has 18583 states and 28443 transitions. [2022-11-03 01:54:59,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 01:54:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 18583 states and 28443 transitions. [2022-11-03 01:54:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-03 01:54:59,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:59,148 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:59,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:54:59,149 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:59,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1154454999, now seen corresponding path program 1 times [2022-11-03 01:54:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:59,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862062472] [2022-11-03 01:54:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-03 01:55:01,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:01,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862062472] [2022-11-03 01:55:01,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862062472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:01,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:01,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179174392] [2022-11-03 01:55:01,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:01,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:01,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:01,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:01,228 INFO L87 Difference]: Start difference. First operand 18583 states and 28443 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:55:03,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:06,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:08,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:11,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:13,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:14,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:21,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:24,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:27,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:30,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:32,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:32,358 INFO L93 Difference]: Finished difference Result 36300 states and 58866 transitions. [2022-11-03 01:55:32,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:32,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 180 [2022-11-03 01:55:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:32,621 INFO L225 Difference]: With dead ends: 36300 [2022-11-03 01:55:32,621 INFO L226 Difference]: Without dead ends: 36297 [2022-11-03 01:55:32,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:32,647 INFO L413 NwaCegarLoop]: 4712 mSDtfsCounter, 3571 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 8107 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:32,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 8107 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 678 Invalid, 8 Unknown, 0 Unchecked, 30.0s Time] [2022-11-03 01:55:32,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36297 states. [2022-11-03 01:55:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36297 to 35993. [2022-11-03 01:55:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35993 states, 23634 states have (on average 1.3717948717948718) internal successors, (32421), 25258 states have internal predecessors, (32421), 10401 states have call successors, (10401), 1934 states have call predecessors, (10401), 1957 states have return successors, (15533), 10224 states have call predecessors, (15533), 10400 states have call successors, (15533) [2022-11-03 01:55:35,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35993 states to 35993 states and 58355 transitions. [2022-11-03 01:55:35,204 INFO L78 Accepts]: Start accepts. Automaton has 35993 states and 58355 transitions. Word has length 180 [2022-11-03 01:55:35,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:35,205 INFO L495 AbstractCegarLoop]: Abstraction has 35993 states and 58355 transitions. [2022-11-03 01:55:35,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:55:35,205 INFO L276 IsEmpty]: Start isEmpty. Operand 35993 states and 58355 transitions. [2022-11-03 01:55:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-03 01:55:35,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:35,261 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:35,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:55:35,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:35,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash -692920779, now seen corresponding path program 1 times [2022-11-03 01:55:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:35,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249061279] [2022-11-03 01:55:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-03 01:55:37,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:37,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249061279] [2022-11-03 01:55:37,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249061279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:37,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:37,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:55:37,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376592083] [2022-11-03 01:55:37,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:37,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:37,481 INFO L87 Difference]: Start difference. First operand 35993 states and 58355 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 01:55:39,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:43,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:45,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:48,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:50,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:53,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:54,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:56,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:58,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:00,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:01,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:05,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:12,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:17,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:20,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:25,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:28,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:33,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:34,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:34,653 INFO L93 Difference]: Finished difference Result 107624 states and 180953 transitions. [2022-11-03 01:56:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:34,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 213 [2022-11-03 01:56:34,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:35,604 INFO L225 Difference]: With dead ends: 107624 [2022-11-03 01:56:35,604 INFO L226 Difference]: Without dead ends: 71658 [2022-11-03 01:56:35,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:56:35,827 INFO L413 NwaCegarLoop]: 4572 mSDtfsCounter, 3540 mSDsluCounter, 13591 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 17144 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:35,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 17144 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1399 Invalid, 11 Unknown, 0 Unchecked, 54.0s Time] [2022-11-03 01:56:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71658 states. [2022-11-03 01:56:39,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71658 to 71445. [2022-11-03 01:56:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71445 states, 46934 states have (on average 1.3713086461840032) internal successors, (64361), 50242 states have internal predecessors, (64361), 20581 states have call successors, (20581), 3858 states have call predecessors, (20581), 3929 states have return successors, (37305), 20160 states have call predecessors, (37305), 20580 states have call successors, (37305) [2022-11-03 01:56:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71445 states to 71445 states and 122247 transitions. [2022-11-03 01:56:41,296 INFO L78 Accepts]: Start accepts. Automaton has 71445 states and 122247 transitions. Word has length 213 [2022-11-03 01:56:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:41,298 INFO L495 AbstractCegarLoop]: Abstraction has 71445 states and 122247 transitions. [2022-11-03 01:56:41,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 01:56:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 71445 states and 122247 transitions. [2022-11-03 01:56:41,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-03 01:56:41,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:41,425 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 01:56:41,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:56:41,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:41,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:41,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1826101677, now seen corresponding path program 1 times [2022-11-03 01:56:41,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:41,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731825962] [2022-11-03 01:56:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:41,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-03 01:56:45,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:45,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731825962] [2022-11-03 01:56:45,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731825962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:45,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:56:45,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:56:45,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143522891] [2022-11-03 01:56:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:45,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:56:45,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:45,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:56:45,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:56:45,417 INFO L87 Difference]: Start difference. First operand 71445 states and 122247 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:56:47,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:50,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:52,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:53,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:56:56,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:02,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:06,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:09,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:14,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:16,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:18,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:19,195 INFO L93 Difference]: Finished difference Result 106666 states and 193907 transitions. [2022-11-03 01:57:19,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:19,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 217 [2022-11-03 01:57:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:20,287 INFO L225 Difference]: With dead ends: 106666 [2022-11-03 01:57:20,288 INFO L226 Difference]: Without dead ends: 106663 [2022-11-03 01:57:20,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:20,355 INFO L413 NwaCegarLoop]: 4483 mSDtfsCounter, 3555 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3560 SdHoareTripleChecker+Valid, 7878 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:20,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3560 Valid, 7878 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 688 Invalid, 8 Unknown, 0 Unchecked, 30.2s Time] [2022-11-03 01:57:20,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106663 states. [2022-11-03 01:57:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106663 to 106066. [2022-11-03 01:57:25,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106066 states, 69736 states have (on average 1.3720890214523345) internal successors, (95684), 74690 states have internal predecessors, (95684), 30500 states have call successors, (30500), 5714 states have call predecessors, (30500), 5829 states have return successors, (66644), 29885 states have call predecessors, (66644), 30499 states have call successors, (66644) [2022-11-03 01:57:27,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106066 states to 106066 states and 192828 transitions. [2022-11-03 01:57:27,469 INFO L78 Accepts]: Start accepts. Automaton has 106066 states and 192828 transitions. Word has length 217 [2022-11-03 01:57:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:27,470 INFO L495 AbstractCegarLoop]: Abstraction has 106066 states and 192828 transitions. [2022-11-03 01:57:27,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:57:27,470 INFO L276 IsEmpty]: Start isEmpty. Operand 106066 states and 192828 transitions. [2022-11-03 01:57:27,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-03 01:57:27,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:27,543 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 01:57:27,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:57:27,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:27,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:27,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1637823383, now seen corresponding path program 1 times [2022-11-03 01:57:27,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:27,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814479309] [2022-11-03 01:57:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:27,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-03 01:57:30,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:30,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814479309] [2022-11-03 01:57:30,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814479309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:30,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:30,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:57:30,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828661850] [2022-11-03 01:57:30,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:30,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:30,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:30,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:30,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:30,805 INFO L87 Difference]: Start difference. First operand 106066 states and 192828 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:57:32,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:35,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:37,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:39,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:41,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:43,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:45,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:49,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:52,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:54,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:57:58,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:00,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:04,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:06,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:10,580 INFO L93 Difference]: Finished difference Result 141146 states and 278262 transitions. [2022-11-03 01:58:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:58:10,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 217 [2022-11-03 01:58:10,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:12,087 INFO L225 Difference]: With dead ends: 141146 [2022-11-03 01:58:12,088 INFO L226 Difference]: Without dead ends: 141143 [2022-11-03 01:58:12,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:58:12,185 INFO L413 NwaCegarLoop]: 5007 mSDtfsCounter, 3473 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3475 SdHoareTripleChecker+Valid, 8402 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:12,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3475 Valid, 8402 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 725 Invalid, 9 Unknown, 0 Unchecked, 34.8s Time] [2022-11-03 01:58:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141143 states. [2022-11-03 01:58:19,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141143 to 140490. [2022-11-03 01:58:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140490 states, 92403 states have (on average 1.372433795439542) internal successors, (126817), 98985 states have internal predecessors, (126817), 40361 states have call successors, (40361), 7566 states have call predecessors, (40361), 7725 states have return successors, (109913), 39586 states have call predecessors, (109913), 40360 states have call successors, (109913) [2022-11-03 01:58:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140490 states to 140490 states and 277091 transitions. [2022-11-03 01:58:22,034 INFO L78 Accepts]: Start accepts. Automaton has 140490 states and 277091 transitions. Word has length 217 [2022-11-03 01:58:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:22,035 INFO L495 AbstractCegarLoop]: Abstraction has 140490 states and 277091 transitions. [2022-11-03 01:58:22,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:58:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 140490 states and 277091 transitions. [2022-11-03 01:58:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-03 01:58:22,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:22,125 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:58:22,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:58:22,125 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:22,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash -293409532, now seen corresponding path program 1 times [2022-11-03 01:58:22,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:22,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599279108] [2022-11-03 01:58:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-03 01:58:24,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:24,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599279108] [2022-11-03 01:58:24,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599279108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:58:24,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:58:24,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:58:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132978290] [2022-11-03 01:58:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:58:24,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:58:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:58:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:58:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:58:24,210 INFO L87 Difference]: Start difference. First operand 140490 states and 277091 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 01:58:26,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:30,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:32,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:33,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:35,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:37,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:39,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:41,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:46,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:49,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:51,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:01,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:59:08,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:13,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:14,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:19,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:23,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:29,079 INFO L93 Difference]: Finished difference Result 348416 states and 714989 transitions. [2022-11-03 01:59:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:59:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 215 [2022-11-03 01:59:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:32,352 INFO L225 Difference]: With dead ends: 348416 [2022-11-03 01:59:32,352 INFO L226 Difference]: Without dead ends: 211417 [2022-11-03 01:59:33,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:59:33,802 INFO L413 NwaCegarLoop]: 4827 mSDtfsCounter, 3610 mSDsluCounter, 14227 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 7 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 17907 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:33,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3617 Valid, 17907 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1592 Invalid, 9 Unknown, 0 Unchecked, 52.4s Time] [2022-11-03 01:59:33,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211417 states.