./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-08_1a-drivers--net--xen-netback--xen-netback.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_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/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_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/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_2ec0022c-b497-43c8-befe-6429997ecd91/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 f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 --- 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 03:30:01,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:30:01,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:30:01,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:30:01,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:30:01,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:30:01,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:30:01,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:30:01,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:30:01,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:30:01,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:30:01,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:30:01,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:30:01,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:30:01,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:30:01,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:30:01,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:30:01,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:30:01,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:30:01,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:30:01,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:30:01,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:30:01,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:30:01,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:30:01,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:30:01,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:30:01,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:30:01,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:30:01,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:30:01,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:30:01,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:30:01,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:30:01,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:30:01,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:30:01,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:30:01,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:30:01,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:30:01,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:30:01,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:30:01,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:30:01,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:30:01,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:30:01,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:30:01,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:30:01,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:30:01,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:30:01,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:30:01,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:30:01,719 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:30:01,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:30:01,719 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:30:01,719 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:30:01,720 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:30:01,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:30:01,721 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:30:01,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:30:01,721 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:30:01,721 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:30:01,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:30:01,722 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:30:01,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:30:01,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:30:01,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:30:01,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:30:01,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:30:01,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:30:01,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:30:01,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:30:01,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:30:01,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:30:01,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:30:01,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:30:01,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:30:01,728 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:30:01,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:30:01,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:30:01,728 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:30:01,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:30:01,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:30:01,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:30:01,729 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_2ec0022c-b497-43c8-befe-6429997ecd91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 [2022-11-03 03:30:02,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:30:02,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:30:02,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:30:02,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:30:02,121 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:30:02,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-03 03:30:02,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/b7c636c80/7231bc47dc654128a6229fedd6f6dde9/FLAGc3b607ed3 [2022-11-03 03:30:03,356 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:30:03,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-03 03:30:03,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/b7c636c80/7231bc47dc654128a6229fedd6f6dde9/FLAGc3b607ed3 [2022-11-03 03:30:03,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/b7c636c80/7231bc47dc654128a6229fedd6f6dde9 [2022-11-03 03:30:03,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:30:03,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:30:03,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:30:03,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:30:03,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:30:03,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:30:03" (1/1) ... [2022-11-03 03:30:03,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190485f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:03, skipping insertion in model container [2022-11-03 03:30:03,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:30:03" (1/1) ... [2022-11-03 03:30:03,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:30:03,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:30:07,543 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_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-03 03:30:07,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:30:07,696 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:30:08,552 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_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-03 03:30:08,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:30:08,833 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:30:08,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08 WrapperNode [2022-11-03 03:30:08,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:30:08,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:30:08,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:30:08,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:30:08,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:08,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,202 INFO L138 Inliner]: procedures = 426, calls = 3455, calls flagged for inlining = 207, calls inlined = 116, statements flattened = 4483 [2022-11-03 03:30:09,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:30:09,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:30:09,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:30:09,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:30:09,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,421 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:30:09,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:30:09,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:30:09,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:30:09,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (1/1) ... [2022-11-03 03:30:09,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:30:09,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:09,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:30:09,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:30:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 03:30:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-03 03:30:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-03 03:30:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure backend_switch_state [2022-11-03 03:30:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure backend_switch_state [2022-11-03 03:30:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-03 03:30:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-03 03:30:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:30:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:30:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hotplug_status_watch [2022-11-03 03:30:09,575 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hotplug_status_watch [2022-11-03 03:30:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 03:30:09,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 03:30:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_unmap_frontend_rings [2022-11-03 03:30:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_unmap_frontend_rings [2022-11-03 03:30:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:30:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:30:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_xenbus_watch [2022-11-03 03:30:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_xenbus_watch [2022-11-03 03:30:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_kick_thread [2022-11-03 03:30:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_kick_thread [2022-11-03 03:30:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:30:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:30:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_map_ring_valloc [2022-11-03 03:30:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_map_ring_valloc [2022-11-03 03:30:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:30:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:30:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_rate [2022-11-03 03:30:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_rate [2022-11-03 03:30:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 03:30:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 03:30:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:30:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:30:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:30:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:30:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure netback_uevent [2022-11-03 03:30:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_uevent [2022-11-03 03:30:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:30:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:30:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_carrier_off [2022-11-03 03:30:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_carrier_off [2022-11-03 03:30:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:30:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 03:30:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 03:30:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:30:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:30:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:30:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:30:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:30:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-03 03:30:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-03 03:30:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 03:30:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 03:30:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:30:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:30:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:30:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-03 03:30:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-03 03:30:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:30:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:30:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:30:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_deinit_queue [2022-11-03 03:30:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_deinit_queue [2022-11-03 03:30:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-03 03:30:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-03 03:30:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_to_xenbus_device [2022-11-03 03:30:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_to_xenbus_device [2022-11-03 03:30:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_watchers [2022-11-03 03:30:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_watchers [2022-11-03 03:30:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 03:30:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 03:30:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:30:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:30:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure frontend_changed [2022-11-03 03:30:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure frontend_changed [2022-11-03 03:30:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:30:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure set_backend_state [2022-11-03 03:30:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure set_backend_state [2022-11-03 03:30:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:30:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:30:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_write_io_ring [2022-11-03 03:30:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_write_io_ring [2022-11-03 03:30:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-03 03:30:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-03 03:30:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-11-03 03:30:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-11-03 03:30:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2022-11-03 03:30:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2022-11-03 03:30:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 03:30:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 03:30:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:30:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:30:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:30:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:30:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:30:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:30:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:30:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:30:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_disconnect [2022-11-03 03:30:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_disconnect [2022-11-03 03:30:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:30:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:30:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 03:30:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 03:30:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_down [2022-11-03 03:30:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_down [2022-11-03 03:30:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:30:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:30:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-03 03:30:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-03 03:30:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-11-03 03:30:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-11-03 03:30:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-03 03:30:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-03 03:30:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-03 03:30:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-03 03:30:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-03 03:30:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-03 03:30:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_fix_features [2022-11-03 03:30:09,606 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_fix_features [2022-11-03 03:30:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-03 03:30:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-03 03:30:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:30:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:30:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:30:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:30:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:30:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:30:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-03 03:30:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-03 03:30:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 03:30:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 03:30:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_up [2022-11-03 03:30:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_up [2022-11-03 03:30:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2022-11-03 03:30:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2022-11-03 03:30:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:30:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:30:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:30:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:30:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:30:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unmap_ring_vfree [2022-11-03 03:30:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unmap_ring_vfree [2022-11-03 03:30:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:30:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_change_mtu [2022-11-03 03:30:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_change_mtu [2022-11-03 03:30:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-03 03:30:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-03 03:30:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2022-11-03 03:30:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2022-11-03 03:30:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-03 03:30:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-03 03:30:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:30:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:30:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:30:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:30:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:30:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:30:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:30:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-03 03:30:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-03 03:30:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:30:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:30:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure netback_remove [2022-11-03 03:30:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_remove [2022-11-03 03:30:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:30:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:30:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:30:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:30:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:30:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:30:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:30:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-03 03:30:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-03 03:30:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_napi_schedule_or_enable_events [2022-11-03 03:30:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_napi_schedule_or_enable_events [2022-11-03 03:30:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:30:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:30:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 03:30:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 03:30:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-03 03:30:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-03 03:30:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 03:30:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 03:30:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 03:30:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 03:30:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 03:30:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 03:30:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:30:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_get_stats [2022-11-03 03:30:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_get_stats [2022-11-03 03:30:10,482 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:30:10,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:30:10,879 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:30:18,818 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:30:20,097 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:30:20,097 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:30:20,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:20 BoogieIcfgContainer [2022-11-03 03:30:20,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:30:20,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:30:20,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:30:20,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:30:20,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:30:03" (1/3) ... [2022-11-03 03:30:20,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f26f7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:20, skipping insertion in model container [2022-11-03 03:30:20,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:08" (2/3) ... [2022-11-03 03:30:20,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f26f7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:20, skipping insertion in model container [2022-11-03 03:30:20,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:20" (3/3) ... [2022-11-03 03:30:20,115 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-03 03:30:20,140 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:30:20,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:30:20,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:30:20,247 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;@693b87f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:30:20,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:30:20,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 1004 states, 645 states have (on average 1.3457364341085272) internal successors, (868), 671 states have internal predecessors, (868), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) [2022-11-03 03:30:20,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:30:20,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:20,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:20,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1783580873, now seen corresponding path program 1 times [2022-11-03 03:30:20,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:20,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102989429] [2022-11-03 03:30:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:20,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:21,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:21,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:21,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102989429] [2022-11-03 03:30:21,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102989429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:21,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:21,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:30:21,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249956026] [2022-11-03 03:30:21,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:21,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:21,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:21,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:21,067 INFO L87 Difference]: Start difference. First operand has 1004 states, 645 states have (on average 1.3457364341085272) internal successors, (868), 671 states have internal predecessors, (868), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:23,557 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 03:30:25,877 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 03:30:26,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:26,872 INFO L93 Difference]: Finished difference Result 2975 states and 4201 transitions. [2022-11-03 03:30:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 03:30:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:26,909 INFO L225 Difference]: With dead ends: 2975 [2022-11-03 03:30:26,909 INFO L226 Difference]: Without dead ends: 1929 [2022-11-03 03:30:26,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 03:30:26,931 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1340 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:26,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 2898 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 359 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-11-03 03:30:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2022-11-03 03:30:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1923. [2022-11-03 03:30:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1238 states have (on average 1.3231017770597737) internal successors, (1638), 1274 states have internal predecessors, (1638), 517 states have call successors, (517), 168 states have call predecessors, (517), 167 states have return successors, (525), 499 states have call predecessors, (525), 515 states have call successors, (525) [2022-11-03 03:30:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2680 transitions. [2022-11-03 03:30:27,129 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2680 transitions. Word has length 17 [2022-11-03 03:30:27,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:27,129 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 2680 transitions. [2022-11-03 03:30:27,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2680 transitions. [2022-11-03 03:30:27,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 03:30:27,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:27,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:27,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:30:27,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2145868465, now seen corresponding path program 1 times [2022-11-03 03:30:27,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:27,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825950890] [2022-11-03 03:30:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 03:30:27,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:27,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825950890] [2022-11-03 03:30:27,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825950890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:27,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:27,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:27,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090452030] [2022-11-03 03:30:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:27,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:27,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:27,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:27,611 INFO L87 Difference]: Start difference. First operand 1923 states and 2680 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:30:29,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:31,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:34,020 WARN L539 Checker$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 03:30:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:34,461 INFO L93 Difference]: Finished difference Result 4552 states and 6333 transitions. [2022-11-03 03:30:34,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:34,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-11-03 03:30:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:34,480 INFO L225 Difference]: With dead ends: 4552 [2022-11-03 03:30:34,481 INFO L226 Difference]: Without dead ends: 2630 [2022-11-03 03:30:34,492 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 03:30:34,493 INFO L413 NwaCegarLoop]: 1286 mSDtfsCounter, 513 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:34,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 2465 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-03 03:30:34,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2022-11-03 03:30:34,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2622. [2022-11-03 03:30:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 1700 states have (on average 1.3358823529411765) internal successors, (2271), 1747 states have internal predecessors, (2271), 683 states have call successors, (683), 239 states have call predecessors, (683), 238 states have return successors, (691), 662 states have call predecessors, (691), 681 states have call successors, (691) [2022-11-03 03:30:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3645 transitions. [2022-11-03 03:30:34,710 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3645 transitions. Word has length 84 [2022-11-03 03:30:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:34,710 INFO L495 AbstractCegarLoop]: Abstraction has 2622 states and 3645 transitions. [2022-11-03 03:30:34,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:30:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3645 transitions. [2022-11-03 03:30:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 03:30:34,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:34,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:34,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:30:34,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:34,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1149565918, now seen corresponding path program 1 times [2022-11-03 03:30:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:34,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160983975] [2022-11-03 03:30:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:34,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:34,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160983975] [2022-11-03 03:30:34,967 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 03:30:34,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386726757] [2022-11-03 03:30:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:34,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:34,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:34,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:34,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:30:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:36,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 3026 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:30:36,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 03:30:36,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:30:36,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386726757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:36,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:36,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:30:36,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585209670] [2022-11-03 03:30:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:36,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:36,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:36,284 INFO L87 Difference]: Start difference. First operand 2622 states and 3645 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 03:30:38,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:41,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:43,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:43,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:43,657 INFO L93 Difference]: Finished difference Result 6129 states and 8548 transitions. [2022-11-03 03:30:43,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:30:43,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2022-11-03 03:30:43,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:43,681 INFO L225 Difference]: With dead ends: 6129 [2022-11-03 03:30:43,681 INFO L226 Difference]: Without dead ends: 3508 [2022-11-03 03:30:43,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 03:30:43,697 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1146 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:43,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 2735 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 424 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 03:30:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2022-11-03 03:30:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3492. [2022-11-03 03:30:43,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3492 states, 2295 states have (on average 1.3272331154684096) internal successors, (3046), 2358 states have internal predecessors, (3046), 879 states have call successors, (879), 318 states have call predecessors, (879), 317 states have return successors, (895), 845 states have call predecessors, (895), 877 states have call successors, (895) [2022-11-03 03:30:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 4820 transitions. [2022-11-03 03:30:43,864 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 4820 transitions. Word has length 91 [2022-11-03 03:30:43,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:43,865 INFO L495 AbstractCegarLoop]: Abstraction has 3492 states and 4820 transitions. [2022-11-03 03:30:43,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 03:30:43,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 4820 transitions. [2022-11-03 03:30:43,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-03 03:30:43,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:43,875 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 03:30:43,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:44,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:44,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1851358183, now seen corresponding path program 1 times [2022-11-03 03:30:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:44,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181129080] [2022-11-03 03:30:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:44,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-03 03:30:44,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:44,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181129080] [2022-11-03 03:30:44,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181129080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:44,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:44,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:30:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480721845] [2022-11-03 03:30:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:30:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:44,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:30:44,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:30:44,797 INFO L87 Difference]: Start difference. First operand 3492 states and 4820 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 03:30:47,631 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 03:30:50,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:52,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:54,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:30:54,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:54,465 INFO L93 Difference]: Finished difference Result 7006 states and 9671 transitions. [2022-11-03 03:30:54,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:30:54,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2022-11-03 03:30:54,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:54,485 INFO L225 Difference]: With dead ends: 7006 [2022-11-03 03:30:54,485 INFO L226 Difference]: Without dead ends: 3509 [2022-11-03 03:30:54,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:30:54,504 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 10 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:54,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3584 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2022-11-03 03:30:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2022-11-03 03:30:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3495. [2022-11-03 03:30:54,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 2298 states have (on average 1.3259355961705832) internal successors, (3047), 2361 states have internal predecessors, (3047), 879 states have call successors, (879), 318 states have call predecessors, (879), 317 states have return successors, (895), 845 states have call predecessors, (895), 877 states have call successors, (895) [2022-11-03 03:30:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 4821 transitions. [2022-11-03 03:30:54,657 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 4821 transitions. Word has length 144 [2022-11-03 03:30:54,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:54,658 INFO L495 AbstractCegarLoop]: Abstraction has 3495 states and 4821 transitions. [2022-11-03 03:30:54,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 03:30:54,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 4821 transitions. [2022-11-03 03:30:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-03 03:30:54,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:54,663 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 03:30:54,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:30:54,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1837990093, now seen corresponding path program 1 times [2022-11-03 03:30:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:54,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697410442] [2022-11-03 03:30:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:54,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-03 03:30:55,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:55,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697410442] [2022-11-03 03:30:55,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697410442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:55,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:55,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:30:55,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740560533] [2022-11-03 03:30:55,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:55,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:30:55,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:55,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:30:55,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:30:55,530 INFO L87 Difference]: Start difference. First operand 3495 states and 4821 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 03:30:58,867 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 03:31:02,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:02,781 INFO L93 Difference]: Finished difference Result 9925 states and 13665 transitions. [2022-11-03 03:31:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:31:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 145 [2022-11-03 03:31:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:02,818 INFO L225 Difference]: With dead ends: 9925 [2022-11-03 03:31:02,819 INFO L226 Difference]: Without dead ends: 6431 [2022-11-03 03:31:02,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:02,839 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 1738 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 208 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:02,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 3818 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 656 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-11-03 03:31:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6431 states. [2022-11-03 03:31:03,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6431 to 6171. [2022-11-03 03:31:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6171 states, 4043 states have (on average 1.324016819193668) internal successors, (5353), 4163 states have internal predecessors, (5353), 1553 states have call successors, (1553), 575 states have call predecessors, (1553), 574 states have return successors, (1587), 1489 states have call predecessors, (1587), 1551 states have call successors, (1587) [2022-11-03 03:31:03,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6171 states to 6171 states and 8493 transitions. [2022-11-03 03:31:03,202 INFO L78 Accepts]: Start accepts. Automaton has 6171 states and 8493 transitions. Word has length 145 [2022-11-03 03:31:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:03,203 INFO L495 AbstractCegarLoop]: Abstraction has 6171 states and 8493 transitions. [2022-11-03 03:31:03,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 03:31:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6171 states and 8493 transitions. [2022-11-03 03:31:03,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-03 03:31:03,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:03,210 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:03,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:31:03,211 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:03,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1249262211, now seen corresponding path program 1 times [2022-11-03 03:31:03,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:03,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100554902] [2022-11-03 03:31:03,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:03,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-03 03:31:05,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:05,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100554902] [2022-11-03 03:31:05,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100554902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:05,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:05,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 03:31:05,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139817106] [2022-11-03 03:31:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:05,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:31:05,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:05,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:31:05,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:31:05,584 INFO L87 Difference]: Start difference. First operand 6171 states and 8493 transitions. Second operand has 9 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 03:31:09,458 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 03:31:13,926 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 03:31:14,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:14,342 INFO L93 Difference]: Finished difference Result 13955 states and 19549 transitions. [2022-11-03 03:31:14,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:31:14,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) Word has length 169 [2022-11-03 03:31:14,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:14,397 INFO L225 Difference]: With dead ends: 13955 [2022-11-03 03:31:14,397 INFO L226 Difference]: Without dead ends: 7785 [2022-11-03 03:31:14,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:31:14,432 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 247 mSDsluCounter, 11743 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 11988 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:14,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 11988 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1533 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-03 03:31:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-11-03 03:31:14,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 6195. [2022-11-03 03:31:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6195 states, 4058 states have (on average 1.322819122720552) internal successors, (5368), 4178 states have internal predecessors, (5368), 1553 states have call successors, (1553), 575 states have call predecessors, (1553), 583 states have return successors, (1623), 1498 states have call predecessors, (1623), 1551 states have call successors, (1623) [2022-11-03 03:31:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6195 states to 6195 states and 8544 transitions. [2022-11-03 03:31:14,821 INFO L78 Accepts]: Start accepts. Automaton has 6195 states and 8544 transitions. Word has length 169 [2022-11-03 03:31:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:14,822 INFO L495 AbstractCegarLoop]: Abstraction has 6195 states and 8544 transitions. [2022-11-03 03:31:14,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 03:31:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6195 states and 8544 transitions. [2022-11-03 03:31:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 03:31:14,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:14,831 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:14,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:31:14,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:14,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1999742497, now seen corresponding path program 1 times [2022-11-03 03:31:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:14,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375702036] [2022-11-03 03:31:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:14,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-03 03:31:16,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:16,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375702036] [2022-11-03 03:31:16,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375702036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:16,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:16,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:31:16,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761097039] [2022-11-03 03:31:16,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:16,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:31:16,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:31:16,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:31:16,075 INFO L87 Difference]: Start difference. First operand 6195 states and 8544 transitions. Second operand has 6 states, 4 states have (on average 20.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:31:18,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:20,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:22,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:24,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:26,250 WARN L539 Checker$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 03:31:28,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:30,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:32,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:34,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:36,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:36,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:36,542 INFO L93 Difference]: Finished difference Result 12489 states and 17266 transitions. [2022-11-03 03:31:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:31:36,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 20.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 183 [2022-11-03 03:31:36,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:36,573 INFO L225 Difference]: With dead ends: 12489 [2022-11-03 03:31:36,573 INFO L226 Difference]: Without dead ends: 6295 [2022-11-03 03:31:36,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:31:36,603 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 7 mSDsluCounter, 5383 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5908 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:36,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5908 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 925 Invalid, 4 Unknown, 0 Unchecked, 20.2s Time] [2022-11-03 03:31:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2022-11-03 03:31:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 6275. [2022-11-03 03:31:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 4108 states have (on average 1.3237585199610515) internal successors, (5438), 4228 states have internal predecessors, (5438), 1563 states have call successors, (1563), 595 states have call predecessors, (1563), 603 states have return successors, (1633), 1508 states have call predecessors, (1633), 1561 states have call successors, (1633) [2022-11-03 03:31:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 8634 transitions. [2022-11-03 03:31:36,943 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 8634 transitions. Word has length 183 [2022-11-03 03:31:36,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:36,943 INFO L495 AbstractCegarLoop]: Abstraction has 6275 states and 8634 transitions. [2022-11-03 03:31:36,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 20.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 03:31:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 8634 transitions. [2022-11-03 03:31:36,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-03 03:31:36,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:36,952 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:36,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:31:36,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:36,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:36,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1679675148, now seen corresponding path program 1 times [2022-11-03 03:31:36,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:36,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127961487] [2022-11-03 03:31:36,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:36,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-03 03:31:38,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:38,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127961487] [2022-11-03 03:31:38,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127961487] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:31:38,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412929375] [2022-11-03 03:31:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:38,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:38,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:38,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:31:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:39,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 3838 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:31:39,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-03 03:31:39,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:31:39,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412929375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:39,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:31:39,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-11-03 03:31:39,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102069313] [2022-11-03 03:31:39,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:39,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:31:39,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:31:39,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:31:39,517 INFO L87 Difference]: Start difference. First operand 6275 states and 8634 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-03 03:31:42,196 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 03:31:44,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:45,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:47,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:47,508 INFO L93 Difference]: Finished difference Result 12590 states and 17326 transitions. [2022-11-03 03:31:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:31:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2022-11-03 03:31:47,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:47,534 INFO L225 Difference]: With dead ends: 12590 [2022-11-03 03:31:47,534 INFO L226 Difference]: Without dead ends: 6304 [2022-11-03 03:31:47,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:31:47,562 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 14 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:47,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3585 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 03:31:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2022-11-03 03:31:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 6268. [2022-11-03 03:31:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6268 states, 4101 states have (on average 1.3216288710070714) internal successors, (5420), 4221 states have internal predecessors, (5420), 1563 states have call successors, (1563), 595 states have call predecessors, (1563), 603 states have return successors, (1633), 1508 states have call predecessors, (1633), 1561 states have call successors, (1633) [2022-11-03 03:31:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6268 states to 6268 states and 8616 transitions. [2022-11-03 03:31:47,941 INFO L78 Accepts]: Start accepts. Automaton has 6268 states and 8616 transitions. Word has length 184 [2022-11-03 03:31:47,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:47,942 INFO L495 AbstractCegarLoop]: Abstraction has 6268 states and 8616 transitions. [2022-11-03 03:31:47,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-03 03:31:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 6268 states and 8616 transitions. [2022-11-03 03:31:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-03 03:31:47,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:47,950 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:47,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:48,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:48,177 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1349089608, now seen corresponding path program 1 times [2022-11-03 03:31:48,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:48,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336204562] [2022-11-03 03:31:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:48,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-03 03:31:49,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:49,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336204562] [2022-11-03 03:31:49,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336204562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:49,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:49,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:31:49,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120622444] [2022-11-03 03:31:49,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:49,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:31:49,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:49,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:31:49,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:31:49,498 INFO L87 Difference]: Start difference. First operand 6268 states and 8616 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 03:31:52,922 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 03:31:55,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:57,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:58,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:00,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:02,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:03,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:04,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:06,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:08,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:09,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:11,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:32:12,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:12,259 INFO L93 Difference]: Finished difference Result 14936 states and 20882 transitions. [2022-11-03 03:32:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:32:12,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 202 [2022-11-03 03:32:12,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:12,291 INFO L225 Difference]: With dead ends: 14936 [2022-11-03 03:32:12,292 INFO L226 Difference]: Without dead ends: 8669 [2022-11-03 03:32:12,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:32:12,319 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 610 mSDsluCounter, 8395 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 9045 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:12,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 9045 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1190 Invalid, 2 Unknown, 0 Unchecked, 22.2s Time] [2022-11-03 03:32:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8669 states. [2022-11-03 03:32:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8669 to 6660. [2022-11-03 03:32:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6660 states, 4358 states have (on average 1.3166590178981183) internal successors, (5738), 4477 states have internal predecessors, (5738), 1627 states have call successors, (1627), 656 states have call predecessors, (1627), 674 states have return successors, (1707), 1584 states have call predecessors, (1707), 1625 states have call successors, (1707) [2022-11-03 03:32:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6660 states to 6660 states and 9072 transitions. [2022-11-03 03:32:12,714 INFO L78 Accepts]: Start accepts. Automaton has 6660 states and 9072 transitions. Word has length 202 [2022-11-03 03:32:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:12,715 INFO L495 AbstractCegarLoop]: Abstraction has 6660 states and 9072 transitions. [2022-11-03 03:32:12,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 03:32:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 6660 states and 9072 transitions. [2022-11-03 03:32:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-03 03:32:12,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:12,724 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:12,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:32:12,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:12,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash -878432750, now seen corresponding path program 1 times [2022-11-03 03:32:12,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:12,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914315877] [2022-11-03 03:32:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:12,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 03:32:14,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:14,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914315877] [2022-11-03 03:32:14,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914315877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:14,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709317245] [2022-11-03 03:32:14,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:14,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:14,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:14,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:14,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:32:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:19,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 3958 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:32:19,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-03 03:32:19,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 03:32:20,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709317245] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:20,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [447203288] [2022-11-03 03:32:20,119 INFO L159 IcfgInterpreter]: Started Sifa with 146 locations of interest [2022-11-03 03:32:20,119 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:32:20,124 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:32:20,129 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:32:20,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:32:26,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,330 INFO L244 Elim1Store]: Index analysis took 114 ms [2022-11-03 03:32:26,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 379 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 335 [2022-11-03 03:32:26,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 379 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 335 [2022-11-03 03:32:27,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 379 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 335 [2022-11-03 03:32:27,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:27,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 379 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 335 [2022-11-03 03:32:28,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:28,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 379 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 335 [2022-11-03 03:32:29,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:29,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:30,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 389 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 369 [2022-11-03 03:32:31,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 36 select indices, 36 select index equivalence classes, 666 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 0 case distinctions, treesize of input 1011 treesize of output 910 [2022-11-03 03:33:19,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:33:19,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 03:35:50,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:35:50,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:35:50,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 03:35:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,173 INFO L244 Elim1Store]: Index analysis took 118 ms [2022-11-03 03:35:58,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 39 select indices, 39 select index equivalence classes, 741 disjoint index pairs (out of 741 index pairs), introduced 39 new quantified variables, introduced 0 case distinctions, treesize of input 2511 treesize of output 1895 [2022-11-03 03:35:58,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:58,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:35:59,163 INFO L244 Elim1Store]: Index analysis took 449 ms [2022-11-03 03:35:59,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 1154 treesize of output 496 [2022-11-03 03:35:59,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 03:36:00,811 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:36:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 39 select indices, 39 select index equivalence classes, 741 disjoint index pairs (out of 741 index pairs), introduced 39 new quantified variables, introduced 0 case distinctions, treesize of input 2511 treesize of output 1895 [2022-11-03 03:36:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,729 INFO L244 Elim1Store]: Index analysis took 405 ms [2022-11-03 03:36:49,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 1154 treesize of output 496 [2022-11-03 03:36:50,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 03:36:51,278 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:37:56,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:37:57,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:37:57,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:37:57,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:37:57,976 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:37:57,992 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:38:55,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:38:55,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:38:55,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:38:56,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:38:56,576 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:38:56,578 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:40:01,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 03:40:01,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:40:01,833 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 03:40:01,835 INFO L158 Benchmark]: Toolchain (without parser) took 598252.83ms. Allocated memory was 86.0MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 53.1MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-03 03:40:01,835 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:40:01,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5248.63ms. Allocated memory was 86.0MB in the beginning and 249.6MB in the end (delta: 163.6MB). Free memory was 52.8MB in the beginning and 166.1MB in the end (delta: -113.3MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. [2022-11-03 03:40:01,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 368.68ms. Allocated memory is still 249.6MB. Free memory was 166.1MB in the beginning and 138.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-03 03:40:01,836 INFO L158 Benchmark]: Boogie Preprocessor took 266.46ms. Allocated memory is still 249.6MB. Free memory was 138.8MB in the beginning and 110.5MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 03:40:01,836 INFO L158 Benchmark]: RCFGBuilder took 10631.92ms. Allocated memory was 249.6MB in the beginning and 813.7MB in the end (delta: 564.1MB). Free memory was 110.5MB in the beginning and 592.4MB in the end (delta: -481.9MB). Peak memory consumption was 370.2MB. Max. memory is 16.1GB. [2022-11-03 03:40:01,837 INFO L158 Benchmark]: TraceAbstraction took 581728.25ms. Allocated memory was 813.7MB in the beginning and 1.7GB in the end (delta: 916.5MB). Free memory was 592.4MB in the beginning and 1.1GB in the end (delta: -490.8MB). Peak memory consumption was 995.5MB. Max. memory is 16.1GB. [2022-11-03 03:40:01,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5248.63ms. Allocated memory was 86.0MB in the beginning and 249.6MB in the end (delta: 163.6MB). Free memory was 52.8MB in the beginning and 166.1MB in the end (delta: -113.3MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 368.68ms. Allocated memory is still 249.6MB. Free memory was 166.1MB in the beginning and 138.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 266.46ms. Allocated memory is still 249.6MB. Free memory was 138.8MB in the beginning and 110.5MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 10631.92ms. Allocated memory was 249.6MB in the beginning and 813.7MB in the end (delta: 564.1MB). Free memory was 110.5MB in the beginning and 592.4MB in the end (delta: -481.9MB). Peak memory consumption was 370.2MB. Max. memory is 16.1GB. * TraceAbstraction took 581728.25ms. Allocated memory was 813.7MB in the beginning and 1.7GB in the end (delta: 916.5MB). Free memory was 592.4MB in the beginning and 1.1GB in the end (delta: -490.8MB). Peak memory consumption was 995.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 03:40:01,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/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_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/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 f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 --- 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 03:40:04,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:40:04,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:40:04,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:40:04,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:40:04,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:40:04,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:40:04,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:40:04,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:40:04,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:40:04,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:40:04,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:40:04,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:40:04,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:40:04,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:40:04,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:40:04,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:40:04,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:40:04,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:40:04,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:40:04,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:40:04,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:40:04,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:40:04,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:40:04,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:40:04,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:40:04,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:40:04,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:40:04,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:40:04,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:40:04,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:40:04,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:40:04,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:40:04,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:40:04,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:40:04,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:40:04,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:40:04,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:40:04,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:40:04,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:40:04,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:40:04,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 03:40:04,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:40:04,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:40:04,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:40:04,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:40:04,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:40:04,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:40:04,622 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:40:04,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:40:04,623 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:40:04,623 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:40:04,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:40:04,623 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:40:04,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:40:04,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:40:04,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:40:04,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:40:04,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:40:04,626 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:40:04,626 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:40:04,626 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:40:04,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:40:04,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:40:04,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:40:04,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:40:04,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:40:04,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:40:04,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:40:04,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:40:04,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:40:04,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:40:04,629 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:40:04,629 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:40:04,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:40:04,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:40:04,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:40:04,630 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 [2022-11-03 03:40:05,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:40:05,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:40:05,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:40:05,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:40:05,080 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:40:05,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-03 03:40:05,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/65eb0ac60/cdf212a11fb84f2983aa1c45aa386799/FLAGc2ddd14dc [2022-11-03 03:40:06,346 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:40:06,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-03 03:40:06,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/65eb0ac60/cdf212a11fb84f2983aa1c45aa386799/FLAGc2ddd14dc [2022-11-03 03:40:06,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/data/65eb0ac60/cdf212a11fb84f2983aa1c45aa386799 [2022-11-03 03:40:06,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:40:06,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:40:06,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:40:06,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:40:06,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:40:06,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:06" (1/1) ... [2022-11-03 03:40:06,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23918ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:06, skipping insertion in model container [2022-11-03 03:40:06,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:40:06" (1/1) ... [2022-11-03 03:40:06,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:40:06,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:40:10,173 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_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-03 03:40:10,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:40:10,293 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 03:40:10,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:40:10,974 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_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-03 03:40:11,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:40:11,056 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:40:11,892 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_2ec0022c-b497-43c8-befe-6429997ecd91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-11-03 03:40:11,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:40:12,164 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:40:12,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12 WrapperNode [2022-11-03 03:40:12,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:40:12,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:40:12,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:40:12,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:40:12,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,432 INFO L138 Inliner]: procedures = 440, calls = 3455, calls flagged for inlining = 207, calls inlined = 116, statements flattened = 4357 [2022-11-03 03:40:12,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:40:12,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:40:12,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:40:12,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:40:12,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:40:12,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:40:12,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:40:12,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:40:12,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (1/1) ... [2022-11-03 03:40:12,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:40:12,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:40:12,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:40:12,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:40:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 03:40:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-03 03:40:12,800 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-03 03:40:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure backend_switch_state [2022-11-03 03:40:12,801 INFO L138 BoogieDeclarations]: Found implementation of procedure backend_switch_state [2022-11-03 03:40:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-03 03:40:12,801 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-03 03:40:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:40:12,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:40:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hotplug_status_watch [2022-11-03 03:40:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hotplug_status_watch [2022-11-03 03:40:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 03:40:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 03:40:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_unmap_frontend_rings [2022-11-03 03:40:12,802 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_unmap_frontend_rings [2022-11-03 03:40:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:40:12,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:40:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_xenbus_watch [2022-11-03 03:40:12,803 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_xenbus_watch [2022-11-03 03:40:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_kick_thread [2022-11-03 03:40:12,804 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_kick_thread [2022-11-03 03:40:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:40:12,804 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:40:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_map_ring_valloc [2022-11-03 03:40:12,805 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_map_ring_valloc [2022-11-03 03:40:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:40:12,805 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:40:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_rate [2022-11-03 03:40:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_rate [2022-11-03 03:40:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 03:40:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 03:40:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:40:12,807 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:40:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:40:12,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:40:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure netback_uevent [2022-11-03 03:40:12,807 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_uevent [2022-11-03 03:40:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:40:12,808 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:40:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_carrier_off [2022-11-03 03:40:12,808 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_carrier_off [2022-11-03 03:40:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:40:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-03 03:40:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:40:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 03:40:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 03:40:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 03:40:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:40:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:40:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:40:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:40:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-03 03:40:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-03 03:40:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 03:40:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 03:40:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:40:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:40:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-03 03:40:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-03 03:40:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:40:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:40:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_deinit_queue [2022-11-03 03:40:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_deinit_queue [2022-11-03 03:40:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-03 03:40:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-03 03:40:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_to_xenbus_device [2022-11-03 03:40:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_to_xenbus_device [2022-11-03 03:40:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_watchers [2022-11-03 03:40:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_watchers [2022-11-03 03:40:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 03:40:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 03:40:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:40:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:40:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure frontend_changed [2022-11-03 03:40:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure frontend_changed [2022-11-03 03:40:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:40:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure set_backend_state [2022-11-03 03:40:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure set_backend_state [2022-11-03 03:40:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:40:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:40:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-03 03:40:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_write_io_ring [2022-11-03 03:40:12,820 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_write_io_ring [2022-11-03 03:40:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-03 03:40:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-03 03:40:12,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-03 03:40:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-11-03 03:40:12,821 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-11-03 03:40:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-03 03:40:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2022-11-03 03:40:12,822 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2022-11-03 03:40:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 03:40:12,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 03:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:40:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-03 03:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:40:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:40:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:40:12,825 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:40:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 03:40:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-03 03:40:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 03:40:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:40:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-03 03:40:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:40:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_disconnect [2022-11-03 03:40:12,827 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_disconnect [2022-11-03 03:40:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:40:12,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:40:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 03:40:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 03:40:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_down [2022-11-03 03:40:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_down [2022-11-03 03:40:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:40:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:40:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-03 03:40:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_interdomain_evtchn_to_irqhandler [2022-11-03 03:40:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-11-03 03:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-11-03 03:40:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-03 03:40:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-03 03:40:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-03 03:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-03 03:40:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-03 03:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-03 03:40:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_fix_features [2022-11-03 03:40:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_fix_features [2022-11-03 03:40:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-03 03:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-03 03:40:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:40:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:40:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:40:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:40:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-03 03:40:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-03 03:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 03:40:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 03:40:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_up [2022-11-03 03:40:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_up [2022-11-03 03:40:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2022-11-03 03:40:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2022-11-03 03:40:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:40:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:40:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:40:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unmap_ring_vfree [2022-11-03 03:40:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unmap_ring_vfree [2022-11-03 03:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:40:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_change_mtu [2022-11-03 03:40:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_change_mtu [2022-11-03 03:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-03 03:40:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-03 03:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2022-11-03 03:40:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2022-11-03 03:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-03 03:40:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 03:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-03 03:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-03 03:40:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-03 03:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 03:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:40:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:40:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:40:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:40:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:40:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-03 03:40:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-03 03:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:40:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure netback_remove [2022-11-03 03:40:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_remove [2022-11-03 03:40:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:40:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:40:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:40:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-03 03:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-03 03:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-03 03:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-03 03:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:40:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:40:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-03 03:40:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-03 03:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_napi_schedule_or_enable_events [2022-11-03 03:40:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_napi_schedule_or_enable_events [2022-11-03 03:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:40:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:40:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 03:40:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 03:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-03 03:40:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-03 03:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 03:40:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 03:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 03:40:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 03:40:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 03:40:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 03:40:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_get_stats [2022-11-03 03:40:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_get_stats [2022-11-03 03:40:13,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:40:13,714 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:40:14,893 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:41:00,908 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:41:00,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:41:00,927 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:41:00,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:00 BoogieIcfgContainer [2022-11-03 03:41:00,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:41:00,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:41:00,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:41:00,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:41:00,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:40:06" (1/3) ... [2022-11-03 03:41:00,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13baec27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:00, skipping insertion in model container [2022-11-03 03:41:00,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:40:12" (2/3) ... [2022-11-03 03:41:00,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13baec27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:00, skipping insertion in model container [2022-11-03 03:41:00,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:00" (3/3) ... [2022-11-03 03:41:00,940 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-11-03 03:41:00,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:41:00,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:41:01,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:41:01,043 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;@77fd335c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:41:01,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:41:01,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 1307 states, 948 states have (on average 1.3206751054852321) internal successors, (1252), 974 states have internal predecessors, (1252), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) [2022-11-03 03:41:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 03:41:01,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:01,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:01,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:01,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:01,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1510187125, now seen corresponding path program 1 times [2022-11-03 03:41:01,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:01,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342196027] [2022-11-03 03:41:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:01,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:01,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:01,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:01,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:41:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:02,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:41:02,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:41:02,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:02,571 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:02,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342196027] [2022-11-03 03:41:02,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342196027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:02,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:02,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:41:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553794323] [2022-11-03 03:41:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:02,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:02,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:02,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:02,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:02,641 INFO L87 Difference]: Start difference. First operand has 1307 states, 948 states have (on average 1.3206751054852321) internal successors, (1252), 974 states have internal predecessors, (1252), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:41:03,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:03,046 INFO L93 Difference]: Finished difference Result 3905 states and 5464 transitions. [2022-11-03 03:41:03,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:03,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 03:41:03,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:03,084 INFO L225 Difference]: With dead ends: 3905 [2022-11-03 03:41:03,084 INFO L226 Difference]: Without dead ends: 2553 [2022-11-03 03:41:03,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 03:41:03,112 INFO L413 NwaCegarLoop]: 2044 mSDtfsCounter, 1761 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:03,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 3814 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:41:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2022-11-03 03:41:03,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2550. [2022-11-03 03:41:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 1853 states have (on average 1.3038316243928765) internal successors, (2416), 1887 states have internal predecessors, (2416), 526 states have call successors, (526), 171 states have call predecessors, (526), 170 states have return successors, (524), 510 states have call predecessors, (524), 524 states have call successors, (524) [2022-11-03 03:41:03,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3466 transitions. [2022-11-03 03:41:03,378 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3466 transitions. Word has length 19 [2022-11-03 03:41:03,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:03,379 INFO L495 AbstractCegarLoop]: Abstraction has 2550 states and 3466 transitions. [2022-11-03 03:41:03,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:41:03,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3466 transitions. [2022-11-03 03:41:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 03:41:03,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:03,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:03,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:03,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:03,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1054431279, now seen corresponding path program 1 times [2022-11-03 03:41:03,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:03,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753234426] [2022-11-03 03:41:03,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:03,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:03,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:03,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:03,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:41:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:05,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:41:05,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:41:05,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:05,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:05,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753234426] [2022-11-03 03:41:05,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753234426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:05,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:05,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:05,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987328163] [2022-11-03 03:41:05,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:05,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:05,175 INFO L87 Difference]: Start difference. First operand 2550 states and 3466 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 03:41:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:05,718 INFO L93 Difference]: Finished difference Result 6119 states and 8301 transitions. [2022-11-03 03:41:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:05,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 106 [2022-11-03 03:41:05,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:05,739 INFO L225 Difference]: With dead ends: 6119 [2022-11-03 03:41:05,739 INFO L226 Difference]: Without dead ends: 3572 [2022-11-03 03:41:05,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 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 03:41:05,753 INFO L413 NwaCegarLoop]: 1851 mSDtfsCounter, 693 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:05,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 3572 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 03:41:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2022-11-03 03:41:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3560. [2022-11-03 03:41:05,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 2610 states have (on average 1.3114942528735631) internal successors, (3423), 2655 states have internal predecessors, (3423), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-03 03:41:05,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4825 transitions. [2022-11-03 03:41:05,991 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4825 transitions. Word has length 106 [2022-11-03 03:41:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:05,991 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 4825 transitions. [2022-11-03 03:41:05,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 03:41:05,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4825 transitions. [2022-11-03 03:41:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:05,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:05,999 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 03:41:06,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:06,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:06,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:06,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash 772852535, now seen corresponding path program 1 times [2022-11-03 03:41:06,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:06,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864508597] [2022-11-03 03:41:06,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:06,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:06,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:06,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:06,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 03:41:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:07,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:41:07,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-03 03:41:07,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:07,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:07,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864508597] [2022-11-03 03:41:07,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864508597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:07,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:07,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:41:07,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918066536] [2022-11-03 03:41:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:07,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:41:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:41:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:41:07,830 INFO L87 Difference]: Start difference. First operand 3560 states and 4825 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:41:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:09,099 INFO L93 Difference]: Finished difference Result 7134 states and 9669 transitions. [2022-11-03 03:41:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:41:09,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2022-11-03 03:41:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:09,120 INFO L225 Difference]: With dead ends: 7134 [2022-11-03 03:41:09,120 INFO L226 Difference]: Without dead ends: 3571 [2022-11-03 03:41:09,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 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 03:41:09,136 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 10 mSDsluCounter, 3480 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:09,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5223 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 03:41:09,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2022-11-03 03:41:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3563. [2022-11-03 03:41:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 2613 states have (on average 1.310371220818982) internal successors, (3424), 2658 states have internal predecessors, (3424), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-03 03:41:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 4826 transitions. [2022-11-03 03:41:09,294 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 4826 transitions. Word has length 185 [2022-11-03 03:41:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:09,294 INFO L495 AbstractCegarLoop]: Abstraction has 3563 states and 4826 transitions. [2022-11-03 03:41:09,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:41:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 4826 transitions. [2022-11-03 03:41:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-03 03:41:09,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:09,302 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:09,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:09,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:09,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:09,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:09,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1258493088, now seen corresponding path program 1 times [2022-11-03 03:41:09,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:09,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170744648] [2022-11-03 03:41:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:09,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:09,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:09,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:09,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 03:41:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:10,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:41:11,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-03 03:41:11,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:11,202 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:11,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170744648] [2022-11-03 03:41:11,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170744648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:11,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:11,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:41:11,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388031228] [2022-11-03 03:41:11,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:11,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:11,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:11,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:11,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:11,205 INFO L87 Difference]: Start difference. First operand 3563 states and 4826 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:41:11,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:11,411 INFO L93 Difference]: Finished difference Result 7123 states and 9649 transitions. [2022-11-03 03:41:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:11,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 194 [2022-11-03 03:41:11,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:11,430 INFO L225 Difference]: With dead ends: 7123 [2022-11-03 03:41:11,431 INFO L226 Difference]: Without dead ends: 3563 [2022-11-03 03:41:11,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 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 03:41:11,447 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 1729 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:11,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1743 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:41:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2022-11-03 03:41:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3563. [2022-11-03 03:41:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 2613 states have (on average 1.3088404133180254) internal successors, (3420), 2658 states have internal predecessors, (3420), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-03 03:41:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 4822 transitions. [2022-11-03 03:41:11,702 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 4822 transitions. Word has length 194 [2022-11-03 03:41:11,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:11,703 INFO L495 AbstractCegarLoop]: Abstraction has 3563 states and 4822 transitions. [2022-11-03 03:41:11,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 03:41:11,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 4822 transitions. [2022-11-03 03:41:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-03 03:41:11,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:11,710 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:11,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:11,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:11,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:11,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash 442445858, now seen corresponding path program 1 times [2022-11-03 03:41:11,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:11,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589771027] [2022-11-03 03:41:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:11,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:11,930 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:11,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:41:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:13,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:41:13,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-03 03:41:14,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:14,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:14,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589771027] [2022-11-03 03:41:14,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589771027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:14,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:14,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:41:14,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493001970] [2022-11-03 03:41:14,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:14,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:41:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:14,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:41:14,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:41:14,006 INFO L87 Difference]: Start difference. First operand 3563 states and 4822 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 03:41:15,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:15,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:15,561 INFO L93 Difference]: Finished difference Result 7148 states and 9672 transitions. [2022-11-03 03:41:15,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:41:15,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 194 [2022-11-03 03:41:15,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:15,581 INFO L225 Difference]: With dead ends: 7148 [2022-11-03 03:41:15,581 INFO L226 Difference]: Without dead ends: 3578 [2022-11-03 03:41:15,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 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 03:41:15,597 INFO L413 NwaCegarLoop]: 1744 mSDtfsCounter, 22 mSDsluCounter, 5219 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6963 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:15,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6963 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 03:41:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2022-11-03 03:41:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3558. [2022-11-03 03:41:15,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 2608 states have (on average 1.3075153374233128) internal successors, (3410), 2653 states have internal predecessors, (3410), 702 states have call successors, (702), 248 states have call predecessors, (702), 247 states have return successors, (700), 683 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-03 03:41:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 4812 transitions. [2022-11-03 03:41:15,839 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 4812 transitions. Word has length 194 [2022-11-03 03:41:15,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:15,839 INFO L495 AbstractCegarLoop]: Abstraction has 3558 states and 4812 transitions. [2022-11-03 03:41:15,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 03:41:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 4812 transitions. [2022-11-03 03:41:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-03 03:41:15,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:15,847 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:15,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:16,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:16,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:16,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:16,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1488410957, now seen corresponding path program 1 times [2022-11-03 03:41:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:16,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695117055] [2022-11-03 03:41:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:16,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:16,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:16,067 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:16,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 03:41:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:17,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:41:17,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-03 03:41:18,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:18,001 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:18,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695117055] [2022-11-03 03:41:18,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695117055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:18,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:18,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:41:18,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770421003] [2022-11-03 03:41:18,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:18,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:41:18,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:18,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:41:18,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:41:18,004 INFO L87 Difference]: Start difference. First operand 3558 states and 4812 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:41:18,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:18,694 INFO L93 Difference]: Finished difference Result 8446 states and 11707 transitions. [2022-11-03 03:41:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:41:18,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 214 [2022-11-03 03:41:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:18,723 INFO L225 Difference]: With dead ends: 8446 [2022-11-03 03:41:18,723 INFO L226 Difference]: Without dead ends: 4891 [2022-11-03 03:41:18,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:41:18,740 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 436 mSDsluCounter, 10859 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 13123 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:18,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 13123 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:41:18,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states. [2022-11-03 03:41:18,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 3582. [2022-11-03 03:41:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 2628 states have (on average 1.3051750380517504) internal successors, (3430), 2673 states have internal predecessors, (3430), 702 states have call successors, (702), 248 states have call predecessors, (702), 251 states have return successors, (716), 687 states have call predecessors, (716), 700 states have call successors, (716) [2022-11-03 03:41:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 4848 transitions. [2022-11-03 03:41:19,039 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 4848 transitions. Word has length 214 [2022-11-03 03:41:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:19,040 INFO L495 AbstractCegarLoop]: Abstraction has 3582 states and 4848 transitions. [2022-11-03 03:41:19,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 03:41:19,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 4848 transitions. [2022-11-03 03:41:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-03 03:41:19,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:19,049 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:19,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:19,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:19,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:19,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1523065739, now seen corresponding path program 1 times [2022-11-03 03:41:19,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:19,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209843569] [2022-11-03 03:41:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:19,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:19,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:19,278 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:19,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:41:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:20,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1953 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:41:20,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-03 03:41:20,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:20,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:20,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209843569] [2022-11-03 03:41:20,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209843569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:20,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:41:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353000997] [2022-11-03 03:41:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:20,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:41:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:41:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:41:20,953 INFO L87 Difference]: Start difference. First operand 3582 states and 4848 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:41:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:21,917 INFO L93 Difference]: Finished difference Result 7185 states and 9753 transitions. [2022-11-03 03:41:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:41:21,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 220 [2022-11-03 03:41:21,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:21,939 INFO L225 Difference]: With dead ends: 7185 [2022-11-03 03:41:21,939 INFO L226 Difference]: Without dead ends: 3586 [2022-11-03 03:41:21,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:21,958 INFO L413 NwaCegarLoop]: 1732 mSDtfsCounter, 6 mSDsluCounter, 6900 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8632 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:21,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8632 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:41:21,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2022-11-03 03:41:22,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3586. [2022-11-03 03:41:22,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 2632 states have (on average 1.3047112462006079) internal successors, (3434), 2677 states have internal predecessors, (3434), 702 states have call successors, (702), 248 states have call predecessors, (702), 251 states have return successors, (716), 687 states have call predecessors, (716), 700 states have call successors, (716) [2022-11-03 03:41:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 4852 transitions. [2022-11-03 03:41:22,210 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 4852 transitions. Word has length 220 [2022-11-03 03:41:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:22,211 INFO L495 AbstractCegarLoop]: Abstraction has 3586 states and 4852 transitions. [2022-11-03 03:41:22,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:41:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 4852 transitions. [2022-11-03 03:41:22,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-03 03:41:22,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:22,219 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:22,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:22,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:22,433 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:22,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:22,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2026463350, now seen corresponding path program 1 times [2022-11-03 03:41:22,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:22,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015846911] [2022-11-03 03:41:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:22,438 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:22,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:41:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:23,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:41:23,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-03 03:41:24,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-03 03:41:25,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:25,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015846911] [2022-11-03 03:41:25,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015846911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:25,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1380404415] [2022-11-03 03:41:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:25,288 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:41:25,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:41:25,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:41:25,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-03 03:41:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:26,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:41:26,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-03 03:41:27,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:27,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1380404415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:27,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:41:27,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 12 [2022-11-03 03:41:27,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89747309] [2022-11-03 03:41:27,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:27,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:27,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:27,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:41:27,404 INFO L87 Difference]: Start difference. First operand 3586 states and 4852 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:41:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:28,396 INFO L93 Difference]: Finished difference Result 9486 states and 12821 transitions. [2022-11-03 03:41:28,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:28,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 221 [2022-11-03 03:41:28,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:28,448 INFO L225 Difference]: With dead ends: 9486 [2022-11-03 03:41:28,454 INFO L226 Difference]: Without dead ends: 5903 [2022-11-03 03:41:28,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:41:28,468 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 1679 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 4173 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:28,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 4173 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:41:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2022-11-03 03:41:28,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 5885. [2022-11-03 03:41:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5885 states, 4307 states have (on average 1.2997446018110053) internal successors, (5598), 4387 states have internal predecessors, (5598), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 419 states have return successors, (1185), 1128 states have call predecessors, (1185), 1156 states have call successors, (1185) [2022-11-03 03:41:28,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 7941 transitions. [2022-11-03 03:41:28,898 INFO L78 Accepts]: Start accepts. Automaton has 5885 states and 7941 transitions. Word has length 221 [2022-11-03 03:41:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:28,900 INFO L495 AbstractCegarLoop]: Abstraction has 5885 states and 7941 transitions. [2022-11-03 03:41:28,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:41:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5885 states and 7941 transitions. [2022-11-03 03:41:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-03 03:41:28,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:28,913 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:28,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:29,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:29,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:29,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:29,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1757005581, now seen corresponding path program 1 times [2022-11-03 03:41:29,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:29,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676052304] [2022-11-03 03:41:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:29,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:29,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:29,331 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:29,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 03:41:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:30,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:41:30,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-03 03:41:31,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:41:32,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:32,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676052304] [2022-11-03 03:41:32,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676052304] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:32,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [62063773] [2022-11-03 03:41:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:32,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:41:32,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:41:32,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:41:32,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-03 03:41:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:33,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 03:41:33,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-03 03:41:35,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:35,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [62063773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:35,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:41:35,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 7] total 19 [2022-11-03 03:41:35,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045599419] [2022-11-03 03:41:35,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:35,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 03:41:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:35,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 03:41:35,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:41:35,301 INFO L87 Difference]: Start difference. First operand 5885 states and 7941 transitions. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 5 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 03:41:36,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:36,699 INFO L93 Difference]: Finished difference Result 13572 states and 18684 transitions. [2022-11-03 03:41:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:41:36,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 5 states have call predecessors, (26), 2 states have call successors, (26) Word has length 252 [2022-11-03 03:41:36,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:36,730 INFO L225 Difference]: With dead ends: 13572 [2022-11-03 03:41:36,730 INFO L226 Difference]: Without dead ends: 7690 [2022-11-03 03:41:36,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:41:36,748 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 351 mSDsluCounter, 17336 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 19557 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:36,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 19557 Invalid, 68 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:41:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7690 states. [2022-11-03 03:41:37,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7690 to 5907. [2022-11-03 03:41:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 4323 states have (on average 1.2986352070321536) internal successors, (5614), 4403 states have internal predecessors, (5614), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 425 states have return successors, (1209), 1134 states have call predecessors, (1209), 1156 states have call successors, (1209) [2022-11-03 03:41:37,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 7981 transitions. [2022-11-03 03:41:37,203 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 7981 transitions. Word has length 252 [2022-11-03 03:41:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:37,204 INFO L495 AbstractCegarLoop]: Abstraction has 5907 states and 7981 transitions. [2022-11-03 03:41:37,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 5 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 03:41:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 7981 transitions. [2022-11-03 03:41:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 03:41:37,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:37,216 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:37,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:37,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:37,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:37,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:37,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:37,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1960950714, now seen corresponding path program 1 times [2022-11-03 03:41:37,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:37,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138419409] [2022-11-03 03:41:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:37,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:37,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:37,642 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:37,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 03:41:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:39,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:41:39,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:41:39,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-03 03:41:40,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:40,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138419409] [2022-11-03 03:41:40,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138419409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:40,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1703735327] [2022-11-03 03:41:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:40,583 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:41:40,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:41:40,584 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:41:40,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-03 03:41:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:45,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:41:45,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:41:45,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-03 03:41:46,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1703735327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:46,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68624676] [2022-11-03 03:41:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:46,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:41:46,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:41:46,061 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:41:46,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 03:41:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:47,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 03:41:47,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-11-03 03:41:47,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:47,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68624676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:47,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-03 03:41:47,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7, 7, 7] total 15 [2022-11-03 03:41:47,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718647993] [2022-11-03 03:41:47,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:47,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:41:47,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:47,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:41:47,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:41:47,906 INFO L87 Difference]: Start difference. First operand 5907 states and 7981 transitions. Second operand has 6 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 03:41:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:49,062 INFO L93 Difference]: Finished difference Result 13572 states and 18686 transitions. [2022-11-03 03:41:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:41:49,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 272 [2022-11-03 03:41:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:49,091 INFO L225 Difference]: With dead ends: 13572 [2022-11-03 03:41:49,091 INFO L226 Difference]: Without dead ends: 7668 [2022-11-03 03:41:49,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1356 GetRequests, 1342 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:41:49,108 INFO L413 NwaCegarLoop]: 2223 mSDtfsCounter, 350 mSDsluCounter, 8447 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 10670 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:49,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 10670 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:41:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7668 states. [2022-11-03 03:41:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7668 to 5907. [2022-11-03 03:41:49,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 4323 states have (on average 1.298172565348138) internal successors, (5612), 4403 states have internal predecessors, (5612), 1158 states have call successors, (1158), 414 states have call predecessors, (1158), 425 states have return successors, (1209), 1134 states have call predecessors, (1209), 1156 states have call successors, (1209) [2022-11-03 03:41:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 7979 transitions. [2022-11-03 03:41:49,671 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 7979 transitions. Word has length 272 [2022-11-03 03:41:49,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:49,672 INFO L495 AbstractCegarLoop]: Abstraction has 5907 states and 7979 transitions. [2022-11-03 03:41:49,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 03:41:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 7979 transitions. [2022-11-03 03:41:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 03:41:49,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:49,682 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:49,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:49,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:50,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:50,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:50,307 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:50,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:50,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1084931708, now seen corresponding path program 1 times [2022-11-03 03:41:50,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:50,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360572643] [2022-11-03 03:41:50,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:50,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:50,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:50,311 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:50,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 03:41:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:52,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:41:52,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:41:52,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-03 03:41:53,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:53,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360572643] [2022-11-03 03:41:53,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360572643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:53,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1576029946] [2022-11-03 03:41:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:53,462 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:41:53,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:41:53,465 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:41:53,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-03 03:41:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:58,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:41:58,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:58,231 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:41:58,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-03 03:41:58,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1576029946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:58,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729797124] [2022-11-03 03:41:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:58,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:41:58,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:41:58,901 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:41:58,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 03:42:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:00,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:42:00,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:42:00,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-03 03:42:01,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729797124] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:42:01,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:42:01,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 11 [2022-11-03 03:42:01,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664121506] [2022-11-03 03:42:01,259 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:42:01,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 03:42:01,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:01,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 03:42:01,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:42:01,262 INFO L87 Difference]: Start difference. First operand 5907 states and 7979 transitions. Second operand has 11 states, 9 states have (on average 20.333333333333332) internal successors, (183), 11 states have internal predecessors, (183), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2022-11-03 03:42:02,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:02,566 INFO L93 Difference]: Finished difference Result 11877 states and 16081 transitions. [2022-11-03 03:42:02,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:42:02,567 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 20.333333333333332) internal successors, (183), 11 states have internal predecessors, (183), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 272 [2022-11-03 03:42:02,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:02,591 INFO L225 Difference]: With dead ends: 11877 [2022-11-03 03:42:02,591 INFO L226 Difference]: Without dead ends: 5943 [2022-11-03 03:42:02,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1629 GetRequests, 1617 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:42:02,611 INFO L413 NwaCegarLoop]: 1732 mSDtfsCounter, 10 mSDsluCounter, 8627 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10359 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:02,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10359 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:42:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2022-11-03 03:42:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5943. [2022-11-03 03:42:03,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 4347 states have (on average 1.2965263400046008) internal successors, (5636), 4427 states have internal predecessors, (5636), 1164 states have call successors, (1164), 420 states have call predecessors, (1164), 431 states have return successors, (1215), 1140 states have call predecessors, (1215), 1162 states have call successors, (1215) [2022-11-03 03:42:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 8015 transitions. [2022-11-03 03:42:03,100 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 8015 transitions. Word has length 272 [2022-11-03 03:42:03,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:03,101 INFO L495 AbstractCegarLoop]: Abstraction has 5943 states and 8015 transitions. [2022-11-03 03:42:03,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 20.333333333333332) internal successors, (183), 11 states have internal predecessors, (183), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2022-11-03 03:42:03,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 8015 transitions. [2022-11-03 03:42:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-03 03:42:03,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:03,113 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:03,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:03,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:03,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:03,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:42:03,736 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash 293800963, now seen corresponding path program 2 times [2022-11-03 03:42:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:03,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362105044] [2022-11-03 03:42:03,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 03:42:03,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:03,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:03,741 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:03,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 03:42:51,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 03:42:51,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:42:51,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 2239 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:42:51,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 52 proven. 3 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-11-03 03:42:51,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-03 03:42:53,270 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:53,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362105044] [2022-11-03 03:42:53,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362105044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:42:53,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [470019198] [2022-11-03 03:42:53,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 03:42:53,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:42:53,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:42:53,276 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:42:53,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec0022c-b497-43c8-befe-6429997ecd91/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process