./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-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:09:54,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:09:54,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:09:54,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:09:54,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:09:54,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:09:54,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:09:54,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:09:54,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:09:54,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:09:54,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:09:54,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:09:54,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:09:54,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:09:54,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:09:54,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:09:54,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:09:54,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:09:54,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:09:54,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:09:54,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:09:54,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:09:54,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:09:54,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:09:54,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:09:54,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:09:54,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:09:54,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:09:54,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:09:54,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:09:54,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:09:54,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:09:54,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:09:54,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:09:54,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:09:54,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:09:54,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:09:54,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:09:54,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:09:54,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:09:54,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:09:54,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:09:54,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:09:54,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:09:54,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:09:54,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:09:54,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:09:54,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:09:54,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:09:54,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:09:54,588 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:09:54,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:09:54,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:09:54,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:09:54,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:09:54,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:09:54,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:09:54,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:09:54,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:09:54,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:09:54,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:09:54,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:09:54,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:09:54,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:09:54,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:09:54,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:09:54,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:09:54,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:09:54,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:09:54,591 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:09:54,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:09:54,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:09:54,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:09:54,592 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_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2021-12-07 01:09:54,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:09:54,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:09:54,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:09:54,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:09:54,814 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:09:54,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-07 01:09:54,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/data/39ae388a1/a72437f7f17a4a0bb3be769a39307137/FLAG31f9ae753 [2021-12-07 01:09:55,584 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:09:55,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-07 01:09:55,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/data/39ae388a1/a72437f7f17a4a0bb3be769a39307137/FLAG31f9ae753 [2021-12-07 01:09:55,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/data/39ae388a1/a72437f7f17a4a0bb3be769a39307137 [2021-12-07 01:09:55,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:09:55,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:09:55,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:09:55,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:09:55,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:09:55,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:09:55" (1/1) ... [2021-12-07 01:09:55,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d98886a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:55, skipping insertion in model container [2021-12-07 01:09:55,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:09:55" (1/1) ... [2021-12-07 01:09:55,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:09:56,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:09:59,382 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_1f1d1e03-36e1-4ede-910c-846f5522ccc7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-12-07 01:09:59,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:09:59,778 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:10:00,136 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_1f1d1e03-36e1-4ede-910c-846f5522ccc7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-12-07 01:10:00,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:10:00,360 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:10:00,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00 WrapperNode [2021-12-07 01:10:00,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:10:00,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:10:00,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:10:00,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:10:00,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,712 INFO L137 Inliner]: procedures = 606, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7657 [2021-12-07 01:10:00,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:10:00,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:10:00,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:10:00,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:10:00,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:00,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:10:00,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:10:00,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:10:00,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:10:00,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (1/1) ... [2021-12-07 01:10:01,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:10:01,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:10:01,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:10:01,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:10:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-12-07 01:10:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-12-07 01:10:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-12-07 01:10:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-12-07 01:10:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2021-12-07 01:10:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2021-12-07 01:10:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-07 01:10:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-07 01:10:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-07 01:10:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-07 01:10:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-07 01:10:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-12-07 01:10:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-12-07 01:10:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-07 01:10:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-07 01:10:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 01:10:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 01:10:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-12-07 01:10:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-12-07 01:10:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-07 01:10:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-07 01:10:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-07 01:10:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-07 01:10:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-07 01:10:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-07 01:10:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-07 01:10:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-07 01:10:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-12-07 01:10:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-12-07 01:10:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-12-07 01:10:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-12-07 01:10:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-12-07 01:10:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-12-07 01:10:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-07 01:10:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-07 01:10:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-07 01:10:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-07 01:10:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-07 01:10:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-07 01:10:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-12-07 01:10:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-12-07 01:10:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 01:10:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 01:10:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-07 01:10:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-07 01:10:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:10:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-07 01:10:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-07 01:10:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-07 01:10:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-07 01:10:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-07 01:10:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-07 01:10:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-12-07 01:10:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-12-07 01:10:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-07 01:10:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-07 01:10:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-07 01:10:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-07 01:10:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 01:10:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-12-07 01:10:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-12-07 01:10:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-07 01:10:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-07 01:10:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-07 01:10:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-07 01:10:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 01:10:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:10:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-07 01:10:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-07 01:10:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 01:10:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 01:10:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2021-12-07 01:10:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2021-12-07 01:10:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-12-07 01:10:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-12-07 01:10:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-07 01:10:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-07 01:10:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-07 01:10:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-07 01:10:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:10:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:10:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-07 01:10:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-07 01:10:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-07 01:10:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-07 01:10:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:10:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 01:10:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-07 01:10:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-07 01:10:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-07 01:10:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-07 01:10:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-07 01:10:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-07 01:10:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-07 01:10:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-07 01:10:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-07 01:10:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-07 01:10:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-07 01:10:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-07 01:10:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2021-12-07 01:10:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2021-12-07 01:10:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-07 01:10:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-07 01:10:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-07 01:10:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-07 01:10:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:10:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:10:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-07 01:10:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-07 01:10:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-07 01:10:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-07 01:10:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-12-07 01:10:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-12-07 01:10:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 01:10:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 01:10:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 01:10:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 01:10:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-07 01:10:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-07 01:10:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-07 01:10:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-07 01:10:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-07 01:10:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-07 01:10:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-07 01:10:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-07 01:10:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-12-07 01:10:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-12-07 01:10:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-07 01:10:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-07 01:10:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-07 01:10:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-07 01:10:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-07 01:10:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-07 01:10:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-07 01:10:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-07 01:10:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-07 01:10:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-07 01:10:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 01:10:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 01:10:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 01:10:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 01:10:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-07 01:10:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-07 01:10:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-07 01:10:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-07 01:10:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-07 01:10:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-07 01:10:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-07 01:10:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-07 01:10:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-07 01:10:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-07 01:10:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-07 01:10:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-07 01:10:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:10:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 01:10:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 01:10:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-12-07 01:10:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-12-07 01:10:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:10:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-07 01:10:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-07 01:10:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-07 01:10:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-07 01:10:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-12-07 01:10:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-12-07 01:10:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:10:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-07 01:10:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-07 01:10:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-07 01:10:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-07 01:10:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-07 01:10:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-07 01:10:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-07 01:10:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-07 01:10:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-07 01:10:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-07 01:10:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-07 01:10:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-07 01:10:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-07 01:10:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-07 01:10:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-12-07 01:10:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-12-07 01:10:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-12-07 01:10:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-12-07 01:10:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-07 01:10:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-07 01:10:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-07 01:10:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-07 01:10:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-07 01:10:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-07 01:10:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-12-07 01:10:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-12-07 01:10:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-07 01:10:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-07 01:10:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2021-12-07 01:10:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2021-12-07 01:10:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-07 01:10:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-07 01:10:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-12-07 01:10:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-12-07 01:10:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-12-07 01:10:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-12-07 01:10:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 01:10:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 01:10:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-12-07 01:10:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-12-07 01:10:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2021-12-07 01:10:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2021-12-07 01:10:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:10:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-07 01:10:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-07 01:10:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2021-12-07 01:10:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2021-12-07 01:10:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-07 01:10:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-07 01:10:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 01:10:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 01:10:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-12-07 01:10:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-12-07 01:10:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-07 01:10:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-07 01:10:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-12-07 01:10:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-12-07 01:10:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-07 01:10:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-07 01:10:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-07 01:10:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-07 01:10:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-07 01:10:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-07 01:10:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-12-07 01:10:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-12-07 01:10:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-07 01:10:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-07 01:10:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-07 01:10:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-07 01:10:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2021-12-07 01:10:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2021-12-07 01:10:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-07 01:10:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-07 01:10:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-07 01:10:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-07 01:10:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-12-07 01:10:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-12-07 01:10:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-07 01:10:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-07 01:10:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2021-12-07 01:10:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2021-12-07 01:10:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-07 01:10:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-07 01:10:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-07 01:10:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-07 01:10:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:10:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-07 01:10:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-07 01:10:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-12-07 01:10:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-12-07 01:10:01,601 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:10:01,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:10:01,912 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 01:10:06,812 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:10:06,835 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:10:06,836 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:10:06,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:10:06 BoogieIcfgContainer [2021-12-07 01:10:06,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:10:06,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:10:06,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:10:06,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:10:06,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:09:55" (1/3) ... [2021-12-07 01:10:06,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a686028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:10:06, skipping insertion in model container [2021-12-07 01:10:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:10:00" (2/3) ... [2021-12-07 01:10:06,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a686028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:10:06, skipping insertion in model container [2021-12-07 01:10:06,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:10:06" (3/3) ... [2021-12-07 01:10:06,847 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-07 01:10:06,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:10:06,852 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:10:06,900 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:10:06,904 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:10:06,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:10:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) [2021-12-07 01:10:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 01:10:06,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:06,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:10:06,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:06,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:06,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2021-12-07 01:10:06,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:06,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641962995] [2021-12-07 01:10:06,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:06,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:07,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:10:07,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:07,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641962995] [2021-12-07 01:10:07,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641962995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:07,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:07,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:10:07,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194907380] [2021-12-07 01:10:07,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:07,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:10:07,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:10:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:10:07,829 INFO L87 Difference]: Start difference. First operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:10:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:11,358 INFO L93 Difference]: Finished difference Result 4087 states and 5885 transitions. [2021-12-07 01:10:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:10:11,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2021-12-07 01:10:11,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:11,388 INFO L225 Difference]: With dead ends: 4087 [2021-12-07 01:10:11,388 INFO L226 Difference]: Without dead ends: 2083 [2021-12-07 01:10:11,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:11,408 INFO L933 BasicCegarLoop]: 2626 mSDtfsCounter, 1219 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 1235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 4793 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1235 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:11,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 4793 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1235 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-07 01:10:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-12-07 01:10:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1917. [2021-12-07 01:10:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1328 states have (on average 1.2899096385542168) internal successors, (1713), 1358 states have internal predecessors, (1713), 471 states have call successors, (471), 118 states have call predecessors, (471), 117 states have return successors, (458), 456 states have call predecessors, (458), 458 states have call successors, (458) [2021-12-07 01:10:11,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2021-12-07 01:10:11,567 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2021-12-07 01:10:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:11,568 INFO L470 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2021-12-07 01:10:11,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:10:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2021-12-07 01:10:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 01:10:11,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:11,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:10:11,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:10:11,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:11,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2021-12-07 01:10:11,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:11,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387215988] [2021-12-07 01:10:11,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:11,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:10:12,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:12,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387215988] [2021-12-07 01:10:12,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387215988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:12,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:12,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:12,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791234244] [2021-12-07 01:10:12,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:12,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:12,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:12,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:12,018 INFO L87 Difference]: Start difference. First operand 1917 states and 2642 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-07 01:10:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:18,981 INFO L93 Difference]: Finished difference Result 6036 states and 8473 transitions. [2021-12-07 01:10:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:10:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2021-12-07 01:10:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:19,006 INFO L225 Difference]: With dead ends: 6036 [2021-12-07 01:10:19,006 INFO L226 Difference]: Without dead ends: 4129 [2021-12-07 01:10:19,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:10:19,014 INFO L933 BasicCegarLoop]: 3052 mSDtfsCounter, 4387 mSDsluCounter, 5410 mSDsCounter, 0 mSdLazyCounter, 4190 mSolverCounterSat, 2587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4723 SdHoareTripleChecker+Valid, 8462 SdHoareTripleChecker+Invalid, 6777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2587 IncrementalHoareTripleChecker+Valid, 4190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:19,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4723 Valid, 8462 Invalid, 6777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2587 Valid, 4190 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-12-07 01:10:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2021-12-07 01:10:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3789. [2021-12-07 01:10:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 2628 states have (on average 1.288812785388128) internal successors, (3387), 2676 states have internal predecessors, (3387), 926 states have call successors, (926), 235 states have call predecessors, (926), 234 states have return successors, (913), 909 states have call predecessors, (913), 913 states have call successors, (913) [2021-12-07 01:10:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 5226 transitions. [2021-12-07 01:10:19,158 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 5226 transitions. Word has length 52 [2021-12-07 01:10:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:19,158 INFO L470 AbstractCegarLoop]: Abstraction has 3789 states and 5226 transitions. [2021-12-07 01:10:19,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-07 01:10:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 5226 transitions. [2021-12-07 01:10:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 01:10:19,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:19,163 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:19,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:10:19,163 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:19,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:19,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1287472509, now seen corresponding path program 1 times [2021-12-07 01:10:19,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:19,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292231860] [2021-12-07 01:10:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:19,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-07 01:10:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:10:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-07 01:10:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:19,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:19,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292231860] [2021-12-07 01:10:19,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292231860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:19,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:19,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:19,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045401297] [2021-12-07 01:10:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:19,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:19,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:19,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:19,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:19,603 INFO L87 Difference]: Start difference. First operand 3789 states and 5226 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 01:10:23,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:23,850 INFO L93 Difference]: Finished difference Result 11913 states and 16735 transitions. [2021-12-07 01:10:23,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:10:23,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2021-12-07 01:10:23,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:23,896 INFO L225 Difference]: With dead ends: 11913 [2021-12-07 01:10:23,896 INFO L226 Difference]: Without dead ends: 8134 [2021-12-07 01:10:23,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:10:23,910 INFO L933 BasicCegarLoop]: 2939 mSDtfsCounter, 5514 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 3875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5837 SdHoareTripleChecker+Valid, 6159 SdHoareTripleChecker+Invalid, 5936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3875 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:23,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5837 Valid, 6159 Invalid, 5936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3875 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-07 01:10:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8134 states. [2021-12-07 01:10:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8134 to 7446. [2021-12-07 01:10:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 5168 states have (on average 1.2890866873065014) internal successors, (6662), 5252 states have internal predecessors, (6662), 1815 states have call successors, (1815), 463 states have call predecessors, (1815), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-07 01:10:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10279 transitions. [2021-12-07 01:10:24,177 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10279 transitions. Word has length 73 [2021-12-07 01:10:24,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:24,178 INFO L470 AbstractCegarLoop]: Abstraction has 7446 states and 10279 transitions. [2021-12-07 01:10:24,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 01:10:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10279 transitions. [2021-12-07 01:10:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 01:10:24,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:24,181 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:24,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:10:24,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 486934852, now seen corresponding path program 1 times [2021-12-07 01:10:24,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:24,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987692525] [2021-12-07 01:10:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:24,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:24,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:24,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987692525] [2021-12-07 01:10:24,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987692525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:24,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:24,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:24,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427529192] [2021-12-07 01:10:24,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:24,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:24,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:24,589 INFO L87 Difference]: Start difference. First operand 7446 states and 10279 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:27,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:27,240 INFO L93 Difference]: Finished difference Result 8112 states and 11491 transitions. [2021-12-07 01:10:27,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:10:27,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2021-12-07 01:10:27,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:27,278 INFO L225 Difference]: With dead ends: 8112 [2021-12-07 01:10:27,278 INFO L226 Difference]: Without dead ends: 8109 [2021-12-07 01:10:27,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:10:27,282 INFO L933 BasicCegarLoop]: 2523 mSDtfsCounter, 3927 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 2097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 2986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2097 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:27,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4254 Valid, 3613 Invalid, 2986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2097 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-07 01:10:27,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2021-12-07 01:10:27,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 7445. [2021-12-07 01:10:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 5168 states have (on average 1.2888931888544892) internal successors, (6661), 5251 states have internal predecessors, (6661), 1814 states have call successors, (1814), 463 states have call predecessors, (1814), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-07 01:10:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10277 transitions. [2021-12-07 01:10:27,539 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10277 transitions. Word has length 72 [2021-12-07 01:10:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:27,540 INFO L470 AbstractCegarLoop]: Abstraction has 7445 states and 10277 transitions. [2021-12-07 01:10:27,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10277 transitions. [2021-12-07 01:10:27,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 01:10:27,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:27,542 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:27,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:10:27,542 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:27,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2085748447, now seen corresponding path program 1 times [2021-12-07 01:10:27,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:27,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880457016] [2021-12-07 01:10:27,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:27,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:27,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:27,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880457016] [2021-12-07 01:10:27,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880457016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:27,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:27,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:27,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753509541] [2021-12-07 01:10:27,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:27,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:27,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:27,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:27,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:27,939 INFO L87 Difference]: Start difference. First operand 7445 states and 10277 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:32,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:32,138 INFO L93 Difference]: Finished difference Result 8111 states and 11489 transitions. [2021-12-07 01:10:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:10:32,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2021-12-07 01:10:32,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:32,175 INFO L225 Difference]: With dead ends: 8111 [2021-12-07 01:10:32,175 INFO L226 Difference]: Without dead ends: 8108 [2021-12-07 01:10:32,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:10:32,179 INFO L933 BasicCegarLoop]: 2519 mSDtfsCounter, 3336 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 1470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1470 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:32,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3662 Valid, 5499 Invalid, 3717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1470 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-07 01:10:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8108 states. [2021-12-07 01:10:32,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8108 to 7444. [2021-12-07 01:10:32,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 5168 states have (on average 1.2886996904024768) internal successors, (6660), 5250 states have internal predecessors, (6660), 1813 states have call successors, (1813), 463 states have call predecessors, (1813), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-07 01:10:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10275 transitions. [2021-12-07 01:10:32,416 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10275 transitions. Word has length 73 [2021-12-07 01:10:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:32,416 INFO L470 AbstractCegarLoop]: Abstraction has 7444 states and 10275 transitions. [2021-12-07 01:10:32,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10275 transitions. [2021-12-07 01:10:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 01:10:32,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:32,418 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:32,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:10:32,418 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:32,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:32,419 INFO L85 PathProgramCache]: Analyzing trace with hash -234547225, now seen corresponding path program 1 times [2021-12-07 01:10:32,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:32,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409242033] [2021-12-07 01:10:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:32,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:32,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:32,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409242033] [2021-12-07 01:10:32,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409242033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:32,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:32,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:32,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565655285] [2021-12-07 01:10:32,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:32,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:32,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:32,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:32,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:32,788 INFO L87 Difference]: Start difference. First operand 7444 states and 10275 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:35,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:35,369 INFO L93 Difference]: Finished difference Result 8124 states and 11496 transitions. [2021-12-07 01:10:35,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:10:35,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2021-12-07 01:10:35,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:35,401 INFO L225 Difference]: With dead ends: 8124 [2021-12-07 01:10:35,402 INFO L226 Difference]: Without dead ends: 8120 [2021-12-07 01:10:35,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:10:35,405 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 3903 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 2075 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4228 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2075 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:35,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4228 Valid, 3610 Invalid, 2988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2075 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-07 01:10:35,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8120 states. [2021-12-07 01:10:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 7454. [2021-12-07 01:10:35,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 5176 states have (on average 1.2872874806800618) internal successors, (6663), 5256 states have internal predecessors, (6663), 1811 states have call successors, (1811), 467 states have call predecessors, (1811), 466 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-07 01:10:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 10276 transitions. [2021-12-07 01:10:35,631 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 10276 transitions. Word has length 74 [2021-12-07 01:10:35,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:35,631 INFO L470 AbstractCegarLoop]: Abstraction has 7454 states and 10276 transitions. [2021-12-07 01:10:35,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:35,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 10276 transitions. [2021-12-07 01:10:35,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 01:10:35,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:35,634 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:35,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:10:35,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:35,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:35,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1318120676, now seen corresponding path program 1 times [2021-12-07 01:10:35,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:35,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135087216] [2021-12-07 01:10:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:35,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:35,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:35,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135087216] [2021-12-07 01:10:35,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135087216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:35,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:35,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:35,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354831626] [2021-12-07 01:10:35,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:35,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:35,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:35,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:35,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:35,978 INFO L87 Difference]: Start difference. First operand 7454 states and 10276 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:40,905 INFO L93 Difference]: Finished difference Result 23624 states and 33459 transitions. [2021-12-07 01:10:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:10:40,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2021-12-07 01:10:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:40,956 INFO L225 Difference]: With dead ends: 23624 [2021-12-07 01:10:40,957 INFO L226 Difference]: Without dead ends: 16180 [2021-12-07 01:10:40,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:10:40,984 INFO L933 BasicCegarLoop]: 3127 mSDtfsCounter, 5456 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 3741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 5830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3741 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:40,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5773 Valid, 6447 Invalid, 5830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3741 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-07 01:10:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16180 states. [2021-12-07 01:10:41,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16180 to 14954. [2021-12-07 01:10:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14954 states, 10387 states have (on average 1.286415711947627) internal successors, (13362), 10574 states have internal predecessors, (13362), 3608 states have call successors, (3608), 928 states have call predecessors, (3608), 958 states have return successors, (3806), 3579 states have call predecessors, (3806), 3598 states have call successors, (3806) [2021-12-07 01:10:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14954 states to 14954 states and 20776 transitions. [2021-12-07 01:10:41,540 INFO L78 Accepts]: Start accepts. Automaton has 14954 states and 20776 transitions. Word has length 75 [2021-12-07 01:10:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:41,540 INFO L470 AbstractCegarLoop]: Abstraction has 14954 states and 20776 transitions. [2021-12-07 01:10:41,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 14954 states and 20776 transitions. [2021-12-07 01:10:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-07 01:10:41,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:41,542 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:41,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:10:41,543 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:41,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:41,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2088777078, now seen corresponding path program 1 times [2021-12-07 01:10:41,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:41,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087032053] [2021-12-07 01:10:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:41,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:41,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:41,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087032053] [2021-12-07 01:10:41,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087032053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:41,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:41,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:41,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319968422] [2021-12-07 01:10:41,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:41,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:41,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:41,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:41,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:41,966 INFO L87 Difference]: Start difference. First operand 14954 states and 20776 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:45,915 INFO L93 Difference]: Finished difference Result 16164 states and 23022 transitions. [2021-12-07 01:10:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:10:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2021-12-07 01:10:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:45,964 INFO L225 Difference]: With dead ends: 16164 [2021-12-07 01:10:45,964 INFO L226 Difference]: Without dead ends: 16161 [2021-12-07 01:10:45,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:10:45,972 INFO L933 BasicCegarLoop]: 2525 mSDtfsCounter, 3359 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 1486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3682 SdHoareTripleChecker+Valid, 4512 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1486 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:45,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3682 Valid, 4512 Invalid, 3094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1486 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-07 01:10:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16161 states. [2021-12-07 01:10:46,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16161 to 14953. [2021-12-07 01:10:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14953 states, 10387 states have (on average 1.2863194377587368) internal successors, (13361), 10573 states have internal predecessors, (13361), 3607 states have call successors, (3607), 928 states have call predecessors, (3607), 958 states have return successors, (3806), 3579 states have call predecessors, (3806), 3598 states have call successors, (3806) [2021-12-07 01:10:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14953 states to 14953 states and 20774 transitions. [2021-12-07 01:10:46,580 INFO L78 Accepts]: Start accepts. Automaton has 14953 states and 20774 transitions. Word has length 76 [2021-12-07 01:10:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:46,581 INFO L470 AbstractCegarLoop]: Abstraction has 14953 states and 20774 transitions. [2021-12-07 01:10:46,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 14953 states and 20774 transitions. [2021-12-07 01:10:46,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 01:10:46,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:46,582 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:46,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:10:46,583 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:46,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:46,583 INFO L85 PathProgramCache]: Analyzing trace with hash -328420185, now seen corresponding path program 1 times [2021-12-07 01:10:46,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:46,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820410988] [2021-12-07 01:10:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:46,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:46,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:46,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820410988] [2021-12-07 01:10:46,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820410988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:46,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:46,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:46,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267362586] [2021-12-07 01:10:46,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:46,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:46,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:46,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:46,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:46,886 INFO L87 Difference]: Start difference. First operand 14953 states and 20774 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:52,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:52,949 INFO L93 Difference]: Finished difference Result 47213 states and 66747 transitions. [2021-12-07 01:10:52,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:10:52,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2021-12-07 01:10:52,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:53,073 INFO L225 Difference]: With dead ends: 47213 [2021-12-07 01:10:53,073 INFO L226 Difference]: Without dead ends: 32270 [2021-12-07 01:10:53,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:10:53,113 INFO L933 BasicCegarLoop]: 2949 mSDtfsCounter, 4427 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 2680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 7224 SdHoareTripleChecker+Invalid, 5726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2680 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:53,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4761 Valid, 7224 Invalid, 5726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2680 Valid, 3046 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-07 01:10:53,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32270 states. [2021-12-07 01:10:54,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32270 to 29831. [2021-12-07 01:10:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29831 states, 20728 states have (on average 1.2863276727132382) internal successors, (26663), 21097 states have internal predecessors, (26663), 7192 states have call successors, (7192), 1849 states have call predecessors, (7192), 1910 states have return successors, (7606), 7140 states have call predecessors, (7606), 7182 states have call successors, (7606) [2021-12-07 01:10:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29831 states to 29831 states and 41461 transitions. [2021-12-07 01:10:54,193 INFO L78 Accepts]: Start accepts. Automaton has 29831 states and 41461 transitions. Word has length 77 [2021-12-07 01:10:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:10:54,194 INFO L470 AbstractCegarLoop]: Abstraction has 29831 states and 41461 transitions. [2021-12-07 01:10:54,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 29831 states and 41461 transitions. [2021-12-07 01:10:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-07 01:10:54,195 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:10:54,195 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:10:54,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:10:54,196 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:10:54,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:10:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1591926483, now seen corresponding path program 1 times [2021-12-07 01:10:54,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:10:54,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542180994] [2021-12-07 01:10:54,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:10:54,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:10:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:10:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:10:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:10:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:10:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:10:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:10:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:10:54,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:10:54,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542180994] [2021-12-07 01:10:54,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542180994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:10:54,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:10:54,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:10:54,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054783359] [2021-12-07 01:10:54,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:10:54,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:10:54,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:10:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:10:54,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:10:54,562 INFO L87 Difference]: Start difference. First operand 29831 states and 41461 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:10:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:10:59,766 INFO L93 Difference]: Finished difference Result 32249 states and 45951 transitions. [2021-12-07 01:10:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:10:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 78 [2021-12-07 01:10:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:10:59,857 INFO L225 Difference]: With dead ends: 32249 [2021-12-07 01:10:59,857 INFO L226 Difference]: Without dead ends: 32235 [2021-12-07 01:10:59,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:10:59,872 INFO L933 BasicCegarLoop]: 2510 mSDtfsCounter, 3322 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 1464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3647 SdHoareTripleChecker+Valid, 5490 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1464 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:10:59,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3647 Valid, 5490 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1464 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-07 01:10:59,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32235 states. [2021-12-07 01:11:00,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32235 to 29819. [2021-12-07 01:11:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29819 states, 20717 states have (on average 1.2861900854370807) internal successors, (26646), 21085 states have internal predecessors, (26646), 7191 states have call successors, (7191), 1849 states have call predecessors, (7191), 1910 states have return successors, (7606), 7140 states have call predecessors, (7606), 7182 states have call successors, (7606) [2021-12-07 01:11:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29819 states to 29819 states and 41443 transitions. [2021-12-07 01:11:00,900 INFO L78 Accepts]: Start accepts. Automaton has 29819 states and 41443 transitions. Word has length 78 [2021-12-07 01:11:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:11:00,900 INFO L470 AbstractCegarLoop]: Abstraction has 29819 states and 41443 transitions. [2021-12-07 01:11:00,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:11:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 29819 states and 41443 transitions. [2021-12-07 01:11:00,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-07 01:11:00,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:11:00,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:11:00,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:11:00,910 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:11:00,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:11:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash 293652181, now seen corresponding path program 1 times [2021-12-07 01:11:00,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:11:00,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433390895] [2021-12-07 01:11:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:11:00,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:11:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:11:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 01:11:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 01:11:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:11:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 01:11:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:11:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:11:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:11:01,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:11:01,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433390895] [2021-12-07 01:11:01,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433390895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:11:01,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:11:01,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:11:01,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027819528] [2021-12-07 01:11:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:11:01,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:11:01,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:11:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:11:01,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:11:01,277 INFO L87 Difference]: Start difference. First operand 29819 states and 41443 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 01:11:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:11:10,172 INFO L93 Difference]: Finished difference Result 85084 states and 119649 transitions. [2021-12-07 01:11:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:11:10,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2021-12-07 01:11:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:11:10,358 INFO L225 Difference]: With dead ends: 85084 [2021-12-07 01:11:10,358 INFO L226 Difference]: Without dead ends: 55275 [2021-12-07 01:11:10,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:11:10,435 INFO L933 BasicCegarLoop]: 2451 mSDtfsCounter, 5348 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 5459 mSolverCounterSat, 3978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 9437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3978 IncrementalHoareTripleChecker+Valid, 5459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:11:10,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5657 Valid, 5336 Invalid, 9437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3978 Valid, 5459 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-07 01:11:10,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55275 states. [2021-12-07 01:11:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55275 to 51007. [2021-12-07 01:11:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51007 states, 35437 states have (on average 1.2867906425487485) internal successors, (45600), 36121 states have internal predecessors, (45600), 12187 states have call successors, (12187), 3273 states have call predecessors, (12187), 3382 states have return successors, (12914), 12092 states have call predecessors, (12914), 12178 states have call successors, (12914) [2021-12-07 01:11:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51007 states to 51007 states and 70701 transitions. [2021-12-07 01:11:12,444 INFO L78 Accepts]: Start accepts. Automaton has 51007 states and 70701 transitions. Word has length 113 [2021-12-07 01:11:12,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:11:12,445 INFO L470 AbstractCegarLoop]: Abstraction has 51007 states and 70701 transitions. [2021-12-07 01:11:12,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 01:11:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 51007 states and 70701 transitions. [2021-12-07 01:11:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-07 01:11:12,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:11:12,456 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:11:12,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:11:12,456 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:11:12,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:11:12,457 INFO L85 PathProgramCache]: Analyzing trace with hash 378795284, now seen corresponding path program 1 times [2021-12-07 01:11:12,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:11:12,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791144433] [2021-12-07 01:11:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:11:12,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:11:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:11:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:11:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 01:11:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 01:11:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 01:11:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:12,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 01:11:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:13,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 01:11:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:13,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 01:11:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 01:11:13,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:11:13,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791144433] [2021-12-07 01:11:13,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791144433] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:11:13,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:11:13,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:11:13,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020291476] [2021-12-07 01:11:13,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:11:13,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:11:13,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:11:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:11:13,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:11:13,088 INFO L87 Difference]: Start difference. First operand 51007 states and 70701 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:11:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:11:27,868 INFO L93 Difference]: Finished difference Result 106222 states and 148840 transitions. [2021-12-07 01:11:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:11:27,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2021-12-07 01:11:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:11:28,049 INFO L225 Difference]: With dead ends: 106222 [2021-12-07 01:11:28,050 INFO L226 Difference]: Without dead ends: 55225 [2021-12-07 01:11:28,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:11:28,163 INFO L933 BasicCegarLoop]: 4289 mSDtfsCounter, 4263 mSDsluCounter, 4608 mSDsCounter, 0 mSdLazyCounter, 10405 mSolverCounterSat, 3200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 8897 SdHoareTripleChecker+Invalid, 13605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3200 IncrementalHoareTripleChecker+Valid, 10405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:11:28,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4682 Valid, 8897 Invalid, 13605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3200 Valid, 10405 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2021-12-07 01:11:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55225 states. [2021-12-07 01:11:30,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55225 to 50944. [2021-12-07 01:11:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50944 states, 35395 states have (on average 1.2866789094504874) internal successors, (45542), 36086 states have internal predecessors, (45542), 12173 states have call successors, (12173), 3259 states have call predecessors, (12173), 3375 states have return successors, (12891), 12078 states have call predecessors, (12891), 12163 states have call successors, (12891) [2021-12-07 01:11:30,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50944 states to 50944 states and 70606 transitions. [2021-12-07 01:11:30,385 INFO L78 Accepts]: Start accepts. Automaton has 50944 states and 70606 transitions. Word has length 135 [2021-12-07 01:11:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:11:30,386 INFO L470 AbstractCegarLoop]: Abstraction has 50944 states and 70606 transitions. [2021-12-07 01:11:30,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:11:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 50944 states and 70606 transitions. [2021-12-07 01:11:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-07 01:11:30,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:11:30,394 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:11:30,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 01:11:30,395 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:11:30,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:11:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash -865969197, now seen corresponding path program 1 times [2021-12-07 01:11:30,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:11:30,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369622216] [2021-12-07 01:11:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:11:30,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:11:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:11:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:11:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 01:11:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 01:11:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 01:11:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 01:11:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 01:11:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 01:11:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 01:11:30,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:11:30,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369622216] [2021-12-07 01:11:30,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369622216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:11:30,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:11:30,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:11:30,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682178837] [2021-12-07 01:11:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:11:30,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:11:30,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:11:30,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:11:30,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:11:30,795 INFO L87 Difference]: Start difference. First operand 50944 states and 70606 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:11:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:11:41,724 INFO L93 Difference]: Finished difference Result 60964 states and 87664 transitions. [2021-12-07 01:11:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:11:41,724 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2021-12-07 01:11:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:11:41,911 INFO L225 Difference]: With dead ends: 60964 [2021-12-07 01:11:41,911 INFO L226 Difference]: Without dead ends: 60869 [2021-12-07 01:11:41,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:11:41,933 INFO L933 BasicCegarLoop]: 3871 mSDtfsCounter, 3988 mSDsluCounter, 12178 mSDsCounter, 0 mSdLazyCounter, 8754 mSolverCounterSat, 2835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4405 SdHoareTripleChecker+Valid, 16049 SdHoareTripleChecker+Invalid, 11589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2835 IncrementalHoareTripleChecker+Valid, 8754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:11:41,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4405 Valid, 16049 Invalid, 11589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2835 Valid, 8754 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2021-12-07 01:11:41,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60869 states. [2021-12-07 01:11:43,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60869 to 50923. [2021-12-07 01:11:43,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50923 states, 35392 states have (on average 1.2864771699819169) internal successors, (45531), 36075 states have internal predecessors, (45531), 12155 states have call successors, (12155), 3258 states have call predecessors, (12155), 3375 states have return successors, (12875), 12069 states have call predecessors, (12875), 12147 states have call successors, (12875) [2021-12-07 01:11:44,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50923 states to 50923 states and 70561 transitions. [2021-12-07 01:11:44,060 INFO L78 Accepts]: Start accepts. Automaton has 50923 states and 70561 transitions. Word has length 135 [2021-12-07 01:11:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:11:44,060 INFO L470 AbstractCegarLoop]: Abstraction has 50923 states and 70561 transitions. [2021-12-07 01:11:44,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:11:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 50923 states and 70561 transitions. [2021-12-07 01:11:44,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 01:11:44,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:11:44,138 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:11:44,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 01:11:44,139 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:11:44,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:11:44,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1658078121, now seen corresponding path program 1 times [2021-12-07 01:11:44,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:11:44,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691166496] [2021-12-07 01:11:44,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:11:44,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:11:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:11:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:11:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 01:11:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-07 01:11:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 01:11:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 01:11:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:11:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-07 01:11:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:44,488 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-07 01:11:44,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:11:44,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691166496] [2021-12-07 01:11:44,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691166496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:11:44,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:11:44,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:11:44,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123886757] [2021-12-07 01:11:44,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:11:44,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:11:44,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:11:44,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:11:44,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:11:44,489 INFO L87 Difference]: Start difference. First operand 50923 states and 70561 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-07 01:11:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:11:54,669 INFO L93 Difference]: Finished difference Result 131415 states and 183906 transitions. [2021-12-07 01:11:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:11:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2021-12-07 01:11:54,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:11:54,921 INFO L225 Difference]: With dead ends: 131415 [2021-12-07 01:11:54,921 INFO L226 Difference]: Without dead ends: 80502 [2021-12-07 01:11:55,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:11:55,047 INFO L933 BasicCegarLoop]: 3755 mSDtfsCounter, 4996 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 4720 mSolverCounterSat, 3909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5381 SdHoareTripleChecker+Valid, 6171 SdHoareTripleChecker+Invalid, 8629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3909 IncrementalHoareTripleChecker+Valid, 4720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:11:55,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5381 Valid, 6171 Invalid, 8629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3909 Valid, 4720 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-07 01:11:55,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80502 states. [2021-12-07 01:11:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80502 to 74341. [2021-12-07 01:11:57,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74341 states, 51796 states have (on average 1.2843655880762994) internal successors, (66525), 52795 states have internal predecessors, (66525), 17471 states have call successors, (17471), 4904 states have call predecessors, (17471), 5073 states have return successors, (18499), 17345 states have call predecessors, (18499), 17463 states have call successors, (18499) [2021-12-07 01:11:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74341 states to 74341 states and 102495 transitions. [2021-12-07 01:11:58,158 INFO L78 Accepts]: Start accepts. Automaton has 74341 states and 102495 transitions. Word has length 147 [2021-12-07 01:11:58,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:11:58,158 INFO L470 AbstractCegarLoop]: Abstraction has 74341 states and 102495 transitions. [2021-12-07 01:11:58,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-07 01:11:58,158 INFO L276 IsEmpty]: Start isEmpty. Operand 74341 states and 102495 transitions. [2021-12-07 01:11:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-07 01:11:58,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:11:58,171 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:11:58,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 01:11:58,172 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:11:58,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:11:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1653528564, now seen corresponding path program 1 times [2021-12-07 01:11:58,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:11:58,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122233695] [2021-12-07 01:11:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:11:58,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:11:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:11:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:11:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 01:11:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:11:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:11:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 01:11:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 01:11:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 01:11:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:11:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:58,562 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-07 01:11:58,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:11:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122233695] [2021-12-07 01:11:58,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122233695] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:11:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102150951] [2021-12-07 01:11:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:11:58,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:11:58,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:11:58,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:11:58,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:11:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:11:59,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 7883 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:11:59,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:11:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 01:11:59,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:11:59,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102150951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:11:59,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:11:59,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-12-07 01:11:59,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169058827] [2021-12-07 01:11:59,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:11:59,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:11:59,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:11:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:11:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:11:59,596 INFO L87 Difference]: Start difference. First operand 74341 states and 102495 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-07 01:12:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:12:02,504 INFO L93 Difference]: Finished difference Result 148696 states and 205026 transitions. [2021-12-07 01:12:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:12:02,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 148 [2021-12-07 01:12:02,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:12:02,748 INFO L225 Difference]: With dead ends: 148696 [2021-12-07 01:12:02,748 INFO L226 Difference]: Without dead ends: 74365 [2021-12-07 01:12:02,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:12:02,986 INFO L933 BasicCegarLoop]: 2626 mSDtfsCounter, 0 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5247 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:12:02,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5247 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:12:03,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74365 states. [2021-12-07 01:12:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74365 to 74365. [2021-12-07 01:12:05,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74365 states, 51820 states have (on average 1.2842338865302971) internal successors, (66549), 52819 states have internal predecessors, (66549), 17471 states have call successors, (17471), 4904 states have call predecessors, (17471), 5073 states have return successors, (18499), 17345 states have call predecessors, (18499), 17463 states have call successors, (18499) [2021-12-07 01:12:06,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74365 states to 74365 states and 102519 transitions. [2021-12-07 01:12:06,048 INFO L78 Accepts]: Start accepts. Automaton has 74365 states and 102519 transitions. Word has length 148 [2021-12-07 01:12:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:12:06,048 INFO L470 AbstractCegarLoop]: Abstraction has 74365 states and 102519 transitions. [2021-12-07 01:12:06,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-07 01:12:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 74365 states and 102519 transitions. [2021-12-07 01:12:06,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-07 01:12:06,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:12:06,065 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:06,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:12:06,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:06,267 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:12:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1255235338, now seen corresponding path program 1 times [2021-12-07 01:12:06,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:06,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471589779] [2021-12-07 01:12:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:06,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:12:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:12:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:12:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 01:12:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 01:12:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 01:12:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 01:12:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:12:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-07 01:12:06,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:06,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471589779] [2021-12-07 01:12:06,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471589779] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:12:06,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673348441] [2021-12-07 01:12:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:06,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:06,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:06,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:12:06,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:12:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:07,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 7886 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 01:12:07,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:12:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-07 01:12:07,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:12:07,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673348441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:07,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:12:07,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-07 01:12:07,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354922627] [2021-12-07 01:12:07,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:07,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:12:07,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:07,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:12:07,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:12:07,809 INFO L87 Difference]: Start difference. First operand 74365 states and 102519 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-07 01:12:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:12:09,746 INFO L93 Difference]: Finished difference Result 82120 states and 114725 transitions. [2021-12-07 01:12:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:12:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 148 [2021-12-07 01:12:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:12:09,876 INFO L225 Difference]: With dead ends: 82120 [2021-12-07 01:12:09,876 INFO L226 Difference]: Without dead ends: 45137 [2021-12-07 01:12:09,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:12:09,963 INFO L933 BasicCegarLoop]: 3420 mSDtfsCounter, 1054 mSDsluCounter, 12345 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 15765 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:12:09,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 15765 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:12:09,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45137 states. [2021-12-07 01:12:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45137 to 37500. [2021-12-07 01:12:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37500 states, 26132 states have (on average 1.2825654370120925) internal successors, (33516), 26626 states have internal predecessors, (33516), 8779 states have call successors, (8779), 2498 states have call predecessors, (8779), 2588 states have return successors, (9298), 8727 states have call predecessors, (9298), 8774 states have call successors, (9298) [2021-12-07 01:12:11,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37500 states to 37500 states and 51593 transitions. [2021-12-07 01:12:11,623 INFO L78 Accepts]: Start accepts. Automaton has 37500 states and 51593 transitions. Word has length 148 [2021-12-07 01:12:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:12:11,623 INFO L470 AbstractCegarLoop]: Abstraction has 37500 states and 51593 transitions. [2021-12-07 01:12:11,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-07 01:12:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 37500 states and 51593 transitions. [2021-12-07 01:12:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-07 01:12:11,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:12:11,646 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:11,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:12:11,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:11,847 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:12:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash 363818436, now seen corresponding path program 1 times [2021-12-07 01:12:11,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:11,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602016747] [2021-12-07 01:12:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:11,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:12:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:12:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:12:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-07 01:12:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-07 01:12:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 01:12:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:12:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:12:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:12:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-07 01:12:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:12:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-07 01:12:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 01:12:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 01:12:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-07 01:12:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 01:12:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-07 01:12:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-07 01:12:12,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:12,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602016747] [2021-12-07 01:12:12,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602016747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:12,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:12:12,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:12:12,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241228084] [2021-12-07 01:12:12,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:12,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:12:12,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:12,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:12:12,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:12:12,355 INFO L87 Difference]: Start difference. First operand 37500 states and 51593 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:12:21,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:12:21,921 INFO L93 Difference]: Finished difference Result 103999 states and 143747 transitions. [2021-12-07 01:12:21,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:12:21,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2021-12-07 01:12:21,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:12:22,128 INFO L225 Difference]: With dead ends: 103999 [2021-12-07 01:12:22,128 INFO L226 Difference]: Without dead ends: 66509 [2021-12-07 01:12:22,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:12:22,224 INFO L933 BasicCegarLoop]: 3036 mSDtfsCounter, 3770 mSDsluCounter, 5251 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 2291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4043 SdHoareTripleChecker+Valid, 8287 SdHoareTripleChecker+Invalid, 6286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2291 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:12:22,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4043 Valid, 8287 Invalid, 6286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2291 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-07 01:12:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66509 states. [2021-12-07 01:12:24,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66509 to 61117. [2021-12-07 01:12:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61117 states, 42714 states have (on average 1.2747811022147306) internal successors, (54451), 43508 states have internal predecessors, (54451), 14016 states have call successors, (14016), 4268 states have call predecessors, (14016), 4386 states have return successors, (14683), 13900 states have call predecessors, (14683), 14011 states have call successors, (14683) [2021-12-07 01:12:24,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61117 states to 61117 states and 83150 transitions. [2021-12-07 01:12:24,854 INFO L78 Accepts]: Start accepts. Automaton has 61117 states and 83150 transitions. Word has length 178 [2021-12-07 01:12:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:12:24,854 INFO L470 AbstractCegarLoop]: Abstraction has 61117 states and 83150 transitions. [2021-12-07 01:12:24,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:12:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 61117 states and 83150 transitions. [2021-12-07 01:12:24,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-07 01:12:24,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:12:24,866 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:24,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 01:12:24,866 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:12:24,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:24,866 INFO L85 PathProgramCache]: Analyzing trace with hash 312682114, now seen corresponding path program 1 times [2021-12-07 01:12:24,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:24,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090129610] [2021-12-07 01:12:24,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:24,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:12:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:12:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:12:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:12:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 01:12:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-07 01:12:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 01:12:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:12:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 01:12:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 01:12:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-07 01:12:25,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:25,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090129610] [2021-12-07 01:12:25,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090129610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:25,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:12:25,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:12:25,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581978081] [2021-12-07 01:12:25,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:25,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:12:25,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:12:25,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:12:25,222 INFO L87 Difference]: Start difference. First operand 61117 states and 83150 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:12:42,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:12:42,341 INFO L93 Difference]: Finished difference Result 152021 states and 209327 transitions. [2021-12-07 01:12:42,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:12:42,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 168 [2021-12-07 01:12:42,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:12:42,629 INFO L225 Difference]: With dead ends: 152021 [2021-12-07 01:12:42,630 INFO L226 Difference]: Without dead ends: 90923 [2021-12-07 01:12:42,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:12:42,778 INFO L933 BasicCegarLoop]: 4306 mSDtfsCounter, 4253 mSDsluCounter, 7208 mSDsCounter, 0 mSdLazyCounter, 12315 mSolverCounterSat, 3259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 11514 SdHoareTripleChecker+Invalid, 15574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3259 IncrementalHoareTripleChecker+Valid, 12315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:12:42,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4570 Valid, 11514 Invalid, 15574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3259 Valid, 12315 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2021-12-07 01:12:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90923 states. [2021-12-07 01:12:45,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90923 to 61149. [2021-12-07 01:12:45,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61149 states, 42746 states have (on average 1.2745753988677304) internal successors, (54483), 43540 states have internal predecessors, (54483), 14016 states have call successors, (14016), 4268 states have call predecessors, (14016), 4386 states have return successors, (14683), 13900 states have call predecessors, (14683), 14011 states have call successors, (14683) [2021-12-07 01:12:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61149 states to 61149 states and 83182 transitions. [2021-12-07 01:12:45,811 INFO L78 Accepts]: Start accepts. Automaton has 61149 states and 83182 transitions. Word has length 168 [2021-12-07 01:12:45,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:12:45,811 INFO L470 AbstractCegarLoop]: Abstraction has 61149 states and 83182 transitions. [2021-12-07 01:12:45,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:12:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 61149 states and 83182 transitions. [2021-12-07 01:12:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-07 01:12:45,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:12:45,822 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:45,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 01:12:45,823 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:12:45,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:45,823 INFO L85 PathProgramCache]: Analyzing trace with hash 479173830, now seen corresponding path program 1 times [2021-12-07 01:12:45,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:45,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779211858] [2021-12-07 01:12:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:45,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:12:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:12:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:12:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:12:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:12:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:12:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-07 01:12:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 01:12:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 01:12:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-07 01:12:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-07 01:12:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:12:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-07 01:12:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-07 01:12:46,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:46,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779211858] [2021-12-07 01:12:46,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779211858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:46,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:12:46,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:12:46,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729792393] [2021-12-07 01:12:46,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:46,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:12:46,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:12:46,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:12:46,267 INFO L87 Difference]: Start difference. First operand 61149 states and 83182 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 01:13:01,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:01,953 INFO L93 Difference]: Finished difference Result 152101 states and 209407 transitions. [2021-12-07 01:13:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:13:01,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 182 [2021-12-07 01:13:01,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:02,254 INFO L225 Difference]: With dead ends: 152101 [2021-12-07 01:13:02,254 INFO L226 Difference]: Without dead ends: 90971 [2021-12-07 01:13:02,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:13:02,413 INFO L933 BasicCegarLoop]: 3843 mSDtfsCounter, 4765 mSDsluCounter, 5847 mSDsCounter, 0 mSdLazyCounter, 9548 mSolverCounterSat, 3648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 9690 SdHoareTripleChecker+Invalid, 13196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3648 IncrementalHoareTripleChecker+Valid, 9548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:02,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5086 Valid, 9690 Invalid, 13196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3648 Valid, 9548 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2021-12-07 01:13:02,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90971 states. [2021-12-07 01:13:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90971 to 61149. [2021-12-07 01:13:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61149 states, 42746 states have (on average 1.2745753988677304) internal successors, (54483), 43540 states have internal predecessors, (54483), 14016 states have call successors, (14016), 4268 states have call predecessors, (14016), 4386 states have return successors, (14683), 13900 states have call predecessors, (14683), 14011 states have call successors, (14683) [2021-12-07 01:13:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61149 states to 61149 states and 83182 transitions. [2021-12-07 01:13:05,619 INFO L78 Accepts]: Start accepts. Automaton has 61149 states and 83182 transitions. Word has length 182 [2021-12-07 01:13:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:05,619 INFO L470 AbstractCegarLoop]: Abstraction has 61149 states and 83182 transitions. [2021-12-07 01:13:05,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 01:13:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 61149 states and 83182 transitions. [2021-12-07 01:13:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-07 01:13:05,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:05,629 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:05,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 01:13:05,629 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:05,630 INFO L85 PathProgramCache]: Analyzing trace with hash 725881791, now seen corresponding path program 1 times [2021-12-07 01:13:05,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:05,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240909032] [2021-12-07 01:13:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:05,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:13:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:13:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-07 01:13:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 01:13:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-07 01:13:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:13:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 01:13:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:13:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-07 01:13:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:13:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-07 01:13:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-07 01:13:06,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:06,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240909032] [2021-12-07 01:13:06,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240909032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:06,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:06,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:13:06,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201324056] [2021-12-07 01:13:06,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:06,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:13:06,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:06,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:13:06,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:13:06,318 INFO L87 Difference]: Start difference. First operand 61149 states and 83182 transitions. Second operand has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 6 states have internal predecessors, (144), 4 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-07 01:13:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:16,979 INFO L93 Difference]: Finished difference Result 130421 states and 181246 transitions. [2021-12-07 01:13:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:13:16,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 6 states have internal predecessors, (144), 4 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 215 [2021-12-07 01:13:16,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:17,236 INFO L225 Difference]: With dead ends: 130421 [2021-12-07 01:13:17,237 INFO L226 Difference]: Without dead ends: 69291 [2021-12-07 01:13:17,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702 [2021-12-07 01:13:17,382 INFO L933 BasicCegarLoop]: 2282 mSDtfsCounter, 5047 mSDsluCounter, 3666 mSDsCounter, 0 mSdLazyCounter, 6432 mSolverCounterSat, 3681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5242 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 10113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3681 IncrementalHoareTripleChecker+Valid, 6432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:17,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5242 Valid, 5948 Invalid, 10113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3681 Valid, 6432 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-12-07 01:13:17,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69291 states. [2021-12-07 01:13:20,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69291 to 61341. [2021-12-07 01:13:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61341 states, 42890 states have (on average 1.2732804849615296) internal successors, (54611), 43684 states have internal predecessors, (54611), 14064 states have call successors, (14064), 4268 states have call predecessors, (14064), 4386 states have return successors, (14731), 13948 states have call predecessors, (14731), 14059 states have call successors, (14731) [2021-12-07 01:13:20,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61341 states to 61341 states and 83406 transitions. [2021-12-07 01:13:20,673 INFO L78 Accepts]: Start accepts. Automaton has 61341 states and 83406 transitions. Word has length 215 [2021-12-07 01:13:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:20,673 INFO L470 AbstractCegarLoop]: Abstraction has 61341 states and 83406 transitions. [2021-12-07 01:13:20,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 6 states have internal predecessors, (144), 4 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-12-07 01:13:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 61341 states and 83406 transitions. [2021-12-07 01:13:20,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-07 01:13:20,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:20,682 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:20,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 01:13:20,682 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:20,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash -943524419, now seen corresponding path program 1 times [2021-12-07 01:13:20,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:20,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939422200] [2021-12-07 01:13:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:20,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:13:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:13:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:13:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:13:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:13:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:13:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:13:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:13:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:13:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:13:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 01:13:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:13:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-07 01:13:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-07 01:13:21,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:21,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939422200] [2021-12-07 01:13:21,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939422200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:21,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:21,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:13:21,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071812958] [2021-12-07 01:13:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:21,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:13:21,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:21,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:13:21,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:13:21,145 INFO L87 Difference]: Start difference. First operand 61341 states and 83406 transitions. Second operand has 8 states, 8 states have (on average 18.625) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:13:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:30,872 INFO L93 Difference]: Finished difference Result 129957 states and 178822 transitions. [2021-12-07 01:13:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:13:30,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 227 [2021-12-07 01:13:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:31,096 INFO L225 Difference]: With dead ends: 129957 [2021-12-07 01:13:31,096 INFO L226 Difference]: Without dead ends: 68635 [2021-12-07 01:13:31,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:13:31,236 INFO L933 BasicCegarLoop]: 2285 mSDtfsCounter, 3078 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 2616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3293 SdHoareTripleChecker+Valid, 5081 SdHoareTripleChecker+Invalid, 7108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2616 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:31,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3293 Valid, 5081 Invalid, 7108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2616 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-07 01:13:31,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68635 states. [2021-12-07 01:13:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68635 to 61357. [2021-12-07 01:13:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61357 states, 42906 states have (on average 1.273178576422878) internal successors, (54627), 43700 states have internal predecessors, (54627), 14064 states have call successors, (14064), 4268 states have call predecessors, (14064), 4386 states have return successors, (14731), 13948 states have call predecessors, (14731), 14059 states have call successors, (14731) [2021-12-07 01:13:34,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61357 states to 61357 states and 83422 transitions. [2021-12-07 01:13:34,350 INFO L78 Accepts]: Start accepts. Automaton has 61357 states and 83422 transitions. Word has length 227 [2021-12-07 01:13:34,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:34,350 INFO L470 AbstractCegarLoop]: Abstraction has 61357 states and 83422 transitions. [2021-12-07 01:13:34,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:13:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand 61357 states and 83422 transitions. [2021-12-07 01:13:34,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-07 01:13:34,360 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:34,361 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:34,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 01:13:34,361 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1058361851, now seen corresponding path program 1 times [2021-12-07 01:13:34,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:34,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403916406] [2021-12-07 01:13:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:34,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:13:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:13:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:13:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:13:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:13:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:13:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:13:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:13:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:13:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:13:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 01:13:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:34,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:13:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:35,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-07 01:13:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-07 01:13:35,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:35,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403916406] [2021-12-07 01:13:35,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403916406] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:13:35,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756940625] [2021-12-07 01:13:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:35,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:13:35,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:13:35,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:13:35,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:13:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:36,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 8832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:13:36,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:13:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-07 01:13:36,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:13:36,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756940625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:36,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:13:36,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2021-12-07 01:13:36,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948425175] [2021-12-07 01:13:36,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:36,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:13:36,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:36,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:13:36,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:13:36,179 INFO L87 Difference]: Start difference. First operand 61357 states and 83422 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:13:39,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:39,026 INFO L93 Difference]: Finished difference Result 123127 states and 167575 transitions. [2021-12-07 01:13:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:13:39,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 227 [2021-12-07 01:13:39,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:39,227 INFO L225 Difference]: With dead ends: 123127 [2021-12-07 01:13:39,227 INFO L226 Difference]: Without dead ends: 61789 [2021-12-07 01:13:39,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:13:39,385 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 15 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:39,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 5223 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:13:39,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61789 states. [2021-12-07 01:13:42,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61789 to 61405. [2021-12-07 01:13:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61405 states, 42954 states have (on average 1.2728733063276993) internal successors, (54675), 43748 states have internal predecessors, (54675), 14064 states have call successors, (14064), 4268 states have call predecessors, (14064), 4386 states have return successors, (14731), 13948 states have call predecessors, (14731), 14059 states have call successors, (14731) [2021-12-07 01:13:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61405 states to 61405 states and 83470 transitions. [2021-12-07 01:13:42,383 INFO L78 Accepts]: Start accepts. Automaton has 61405 states and 83470 transitions. Word has length 227 [2021-12-07 01:13:42,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:42,384 INFO L470 AbstractCegarLoop]: Abstraction has 61405 states and 83470 transitions. [2021-12-07 01:13:42,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:13:42,384 INFO L276 IsEmpty]: Start isEmpty. Operand 61405 states and 83470 transitions. [2021-12-07 01:13:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-07 01:13:42,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:42,396 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:42,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 01:13:42,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:13:42,598 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:42,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:42,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1365337371, now seen corresponding path program 1 times [2021-12-07 01:13:42,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:42,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988515511] [2021-12-07 01:13:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:42,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:13:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:13:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:13:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:13:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:13:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:13:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:13:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:13:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:13:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:13:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:13:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:13:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:13:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:13:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 01:13:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:13:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-07 01:13:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-07 01:13:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-07 01:13:43,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:43,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988515511] [2021-12-07 01:13:43,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988515511] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:13:43,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836420837] [2021-12-07 01:13:43,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:43,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:13:43,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:13:43,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:13:43,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:13:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:44,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 8933 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:13:44,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:13:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 01:13:44,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:13:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-07 01:13:44,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836420837] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:13:44,700 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:13:44,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 4, 4] total 20 [2021-12-07 01:13:44,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560680359] [2021-12-07 01:13:44,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:13:44,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-07 01:13:44,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-07 01:13:44,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-12-07 01:13:44,702 INFO L87 Difference]: Start difference. First operand 61405 states and 83470 transitions. Second operand has 20 states, 19 states have (on average 12.263157894736842) internal successors, (233), 13 states have internal predecessors, (233), 6 states have call successors, (46), 8 states have call predecessors, (46), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-12-07 01:14:18,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:14:18,305 INFO L93 Difference]: Finished difference Result 134070 states and 185126 transitions. [2021-12-07 01:14:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-12-07 01:14:18,306 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 12.263157894736842) internal successors, (233), 13 states have internal predecessors, (233), 6 states have call successors, (46), 8 states have call predecessors, (46), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 242 [2021-12-07 01:14:18,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:14:18,577 INFO L225 Difference]: With dead ends: 134070 [2021-12-07 01:14:18,577 INFO L226 Difference]: Without dead ends: 72284 [2021-12-07 01:14:18,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=558, Invalid=2634, Unknown=0, NotChecked=0, Total=3192 [2021-12-07 01:14:18,737 INFO L933 BasicCegarLoop]: 3390 mSDtfsCounter, 6373 mSDsluCounter, 25409 mSDsCounter, 0 mSdLazyCounter, 35643 mSolverCounterSat, 4549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6777 SdHoareTripleChecker+Valid, 28799 SdHoareTripleChecker+Invalid, 40192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4549 IncrementalHoareTripleChecker+Valid, 35643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:14:18,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6777 Valid, 28799 Invalid, 40192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4549 Valid, 35643 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time] [2021-12-07 01:14:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72284 states. [2021-12-07 01:14:22,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72284 to 65013. [2021-12-07 01:14:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65013 states, 45834 states have (on average 1.2726578522494219) internal successors, (58331), 46660 states have internal predecessors, (58331), 14704 states have call successors, (14704), 4324 states have call predecessors, (14704), 4474 states have return successors, (15443), 14588 states have call predecessors, (15443), 14699 states have call successors, (15443) [2021-12-07 01:14:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65013 states to 65013 states and 88478 transitions. [2021-12-07 01:14:22,246 INFO L78 Accepts]: Start accepts. Automaton has 65013 states and 88478 transitions. Word has length 242 [2021-12-07 01:14:22,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:14:22,246 INFO L470 AbstractCegarLoop]: Abstraction has 65013 states and 88478 transitions. [2021-12-07 01:14:22,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 12.263157894736842) internal successors, (233), 13 states have internal predecessors, (233), 6 states have call successors, (46), 8 states have call predecessors, (46), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-12-07 01:14:22,246 INFO L276 IsEmpty]: Start isEmpty. Operand 65013 states and 88478 transitions. [2021-12-07 01:14:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-07 01:14:22,267 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:14:22,267 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:14:22,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 01:14:22,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:14:22,469 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:14:22,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:14:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2041337909, now seen corresponding path program 1 times [2021-12-07 01:14:22,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:14:22,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996792241] [2021-12-07 01:14:22,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:22,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:14:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:14:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:14:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:14:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:14:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:14:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:14:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:14:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:14:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:14:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:14:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:14:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:14:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:14:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:14:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:14:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:14:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:14:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:14:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:14:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:14:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:14:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:14:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 01:14:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:14:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-07 01:14:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-07 01:14:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-07 01:14:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-07 01:14:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:23,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-07 01:14:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-07 01:14:23,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:14:23,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996792241] [2021-12-07 01:14:23,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996792241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:14:23,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:14:23,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:14:23,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649518965] [2021-12-07 01:14:23,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:14:23,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:14:23,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:14:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:14:23,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:14:23,021 INFO L87 Difference]: Start difference. First operand 65013 states and 88478 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 01:14:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:14:31,952 INFO L93 Difference]: Finished difference Result 72061 states and 99758 transitions. [2021-12-07 01:14:31,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:14:31,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 287 [2021-12-07 01:14:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:14:32,185 INFO L225 Difference]: With dead ends: 72061 [2021-12-07 01:14:32,185 INFO L226 Difference]: Without dead ends: 72058 [2021-12-07 01:14:32,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:14:32,212 INFO L933 BasicCegarLoop]: 2268 mSDtfsCounter, 3179 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 4872 mSolverCounterSat, 2643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 4698 SdHoareTripleChecker+Invalid, 7515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2643 IncrementalHoareTripleChecker+Valid, 4872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:14:32,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3387 Valid, 4698 Invalid, 7515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2643 Valid, 4872 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-07 01:14:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72058 states. [2021-12-07 01:14:35,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72058 to 65012. [2021-12-07 01:14:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65012 states, 45834 states have (on average 1.2721342235022035) internal successors, (58307), 46659 states have internal predecessors, (58307), 14703 states have call successors, (14703), 4324 states have call predecessors, (14703), 4474 states have return successors, (15443), 14588 states have call predecessors, (15443), 14699 states have call successors, (15443) [2021-12-07 01:14:35,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65012 states to 65012 states and 88453 transitions. [2021-12-07 01:14:35,611 INFO L78 Accepts]: Start accepts. Automaton has 65012 states and 88453 transitions. Word has length 287 [2021-12-07 01:14:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:14:35,612 INFO L470 AbstractCegarLoop]: Abstraction has 65012 states and 88453 transitions. [2021-12-07 01:14:35,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (28), 9 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 01:14:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 65012 states and 88453 transitions. [2021-12-07 01:14:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-12-07 01:14:35,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:14:35,662 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:14:35,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 01:14:35,662 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:14:35,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:14:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash -691469993, now seen corresponding path program 1 times [2021-12-07 01:14:35,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:14:35,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558447797] [2021-12-07 01:14:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:35,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:14:35,858 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:14:35,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261156850] [2021-12-07 01:14:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:35,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:14:35,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:14:35,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:14:35,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:14:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:37,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 10208 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:14:37,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:14:37,287 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-07 01:14:37,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:14:37,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:14:37,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558447797] [2021-12-07 01:14:37,287 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:14:37,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261156850] [2021-12-07 01:14:37,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261156850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:14:37,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:14:37,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:14:37,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132777971] [2021-12-07 01:14:37,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:14:37,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:14:37,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:14:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:14:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:14:37,289 INFO L87 Difference]: Start difference. First operand 65012 states and 88453 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-12-07 01:14:40,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:14:40,679 INFO L93 Difference]: Finished difference Result 139678 states and 192086 transitions. [2021-12-07 01:14:40,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:14:40,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 398 [2021-12-07 01:14:40,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:14:40,945 INFO L225 Difference]: With dead ends: 139678 [2021-12-07 01:14:40,945 INFO L226 Difference]: Without dead ends: 74685 [2021-12-07 01:14:41,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:14:41,171 INFO L933 BasicCegarLoop]: 3029 mSDtfsCounter, 431 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 5672 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:14:41,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 5672 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:14:41,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74685 states. [2021-12-07 01:14:44,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74685 to 65004. [2021-12-07 01:14:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65004 states, 45826 states have (on average 1.2720071575088379) internal successors, (58291), 46651 states have internal predecessors, (58291), 14703 states have call successors, (14703), 4324 states have call predecessors, (14703), 4474 states have return successors, (15443), 14588 states have call predecessors, (15443), 14699 states have call successors, (15443) [2021-12-07 01:14:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65004 states to 65004 states and 88437 transitions. [2021-12-07 01:14:44,538 INFO L78 Accepts]: Start accepts. Automaton has 65004 states and 88437 transitions. Word has length 398 [2021-12-07 01:14:44,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:14:44,539 INFO L470 AbstractCegarLoop]: Abstraction has 65004 states and 88437 transitions. [2021-12-07 01:14:44,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-12-07 01:14:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 65004 states and 88437 transitions. [2021-12-07 01:14:44,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-12-07 01:14:44,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:14:44,591 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:14:44,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 01:14:44,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-07 01:14:44,793 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:14:44,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:14:44,794 INFO L85 PathProgramCache]: Analyzing trace with hash -113496011, now seen corresponding path program 1 times [2021-12-07 01:14:44,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:14:44,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969895294] [2021-12-07 01:14:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:44,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:14:45,093 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:14:45,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734444164] [2021-12-07 01:14:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:45,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:14:45,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:14:45,094 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:14:45,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 01:14:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:46,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 10244 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:14:46,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:14:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-12-07 01:14:46,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:14:46,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:14:46,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969895294] [2021-12-07 01:14:46,597 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:14:46,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734444164] [2021-12-07 01:14:46,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734444164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:14:46,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:14:46,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:14:46,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945419523] [2021-12-07 01:14:46,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:14:46,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:14:46,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:14:46,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:14:46,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:14:46,599 INFO L87 Difference]: Start difference. First operand 65004 states and 88437 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-12-07 01:14:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:14:49,679 INFO L93 Difference]: Finished difference Result 130021 states and 177749 transitions. [2021-12-07 01:14:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:14:49,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 402 [2021-12-07 01:14:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:14:49,896 INFO L225 Difference]: With dead ends: 130021 [2021-12-07 01:14:49,896 INFO L226 Difference]: Without dead ends: 65036 [2021-12-07 01:14:50,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:14:50,113 INFO L933 BasicCegarLoop]: 2611 mSDtfsCounter, 0 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5215 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:14:50,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5215 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:14:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65036 states. [2021-12-07 01:14:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65036 to 65004. [2021-12-07 01:14:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65004 states, 45826 states have (on average 1.2699122768733906) internal successors, (58195), 46651 states have internal predecessors, (58195), 14703 states have call successors, (14703), 4324 states have call predecessors, (14703), 4474 states have return successors, (15443), 14588 states have call predecessors, (15443), 14699 states have call successors, (15443) [2021-12-07 01:14:53,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65004 states to 65004 states and 88341 transitions. [2021-12-07 01:14:53,628 INFO L78 Accepts]: Start accepts. Automaton has 65004 states and 88341 transitions. Word has length 402 [2021-12-07 01:14:53,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:14:53,629 INFO L470 AbstractCegarLoop]: Abstraction has 65004 states and 88341 transitions. [2021-12-07 01:14:53,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-12-07 01:14:53,629 INFO L276 IsEmpty]: Start isEmpty. Operand 65004 states and 88341 transitions. [2021-12-07 01:14:53,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-12-07 01:14:53,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:14:53,694 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:14:53,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-07 01:14:53,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-07 01:14:53,896 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:14:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:14:53,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2049921288, now seen corresponding path program 1 times [2021-12-07 01:14:53,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:14:53,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180772322] [2021-12-07 01:14:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:53,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:14:54,199 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:14:54,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530233918] [2021-12-07 01:14:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:14:54,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:14:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:14:54,200 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:14:54,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 01:14:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:14:55,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 10252 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:14:55,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:14:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-07 01:14:55,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:14:55,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:14:55,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180772322] [2021-12-07 01:14:55,717 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:14:55,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530233918] [2021-12-07 01:14:55,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530233918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:14:55,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:14:55,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:14:55,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180371128] [2021-12-07 01:14:55,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:14:55,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:14:55,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:14:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:14:55,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:14:55,718 INFO L87 Difference]: Start difference. First operand 65004 states and 88341 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-12-07 01:15:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:15:00,598 INFO L93 Difference]: Finished difference Result 161496 states and 219269 transitions. [2021-12-07 01:15:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:15:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 407 [2021-12-07 01:15:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:15:00,933 INFO L225 Difference]: With dead ends: 161496 [2021-12-07 01:15:00,933 INFO L226 Difference]: Without dead ends: 96111 [2021-12-07 01:15:01,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:15:01,131 INFO L933 BasicCegarLoop]: 3014 mSDtfsCounter, 2333 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 5486 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:15:01,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2333 Valid, 5486 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:15:01,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96111 states. [2021-12-07 01:15:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96111 to 95762. [2021-12-07 01:15:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95762 states, 67872 states have (on average 1.2724098302687412) internal successors, (86361), 69110 states have internal predecessors, (86361), 21188 states have call successors, (21188), 6491 states have call predecessors, (21188), 6701 states have return successors, (22148), 21008 states have call predecessors, (22148), 21184 states have call successors, (22148) [2021-12-07 01:15:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95762 states to 95762 states and 129697 transitions. [2021-12-07 01:15:05,887 INFO L78 Accepts]: Start accepts. Automaton has 95762 states and 129697 transitions. Word has length 407 [2021-12-07 01:15:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:15:05,888 INFO L470 AbstractCegarLoop]: Abstraction has 95762 states and 129697 transitions. [2021-12-07 01:15:05,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-12-07 01:15:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 95762 states and 129697 transitions. [2021-12-07 01:15:05,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-12-07 01:15:05,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:15:05,945 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:15:05,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 01:15:06,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-07 01:15:06,148 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:15:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:15:06,149 INFO L85 PathProgramCache]: Analyzing trace with hash 849710252, now seen corresponding path program 1 times [2021-12-07 01:15:06,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:15:06,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962023035] [2021-12-07 01:15:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:06,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:15:06,535 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:15:06,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730033424] [2021-12-07 01:15:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:06,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:15:06,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:15:06,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:15:06,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 01:15:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:07,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 10250 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:15:07,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:15:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-07 01:15:08,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:15:08,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:15:08,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962023035] [2021-12-07 01:15:08,009 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:15:08,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730033424] [2021-12-07 01:15:08,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730033424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:15:08,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:15:08,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:15:08,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398081690] [2021-12-07 01:15:08,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:15:08,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:15:08,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:15:08,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:15:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:15:08,010 INFO L87 Difference]: Start difference. First operand 95762 states and 129697 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-12-07 01:15:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:15:12,797 INFO L93 Difference]: Finished difference Result 198051 states and 269351 transitions. [2021-12-07 01:15:12,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:15:12,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 405 [2021-12-07 01:15:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:15:13,195 INFO L225 Difference]: With dead ends: 198051 [2021-12-07 01:15:13,196 INFO L226 Difference]: Without dead ends: 102308 [2021-12-07 01:15:13,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:15:13,451 INFO L933 BasicCegarLoop]: 3086 mSDtfsCounter, 839 mSDsluCounter, 5705 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 8791 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:15:13,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 8791 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:15:13,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102308 states. [2021-12-07 01:15:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102308 to 95794. [2021-12-07 01:15:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95794 states, 67904 states have (on average 1.2722814561734213) internal successors, (86393), 69142 states have internal predecessors, (86393), 21188 states have call successors, (21188), 6491 states have call predecessors, (21188), 6701 states have return successors, (22148), 21008 states have call predecessors, (22148), 21184 states have call successors, (22148) [2021-12-07 01:15:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95794 states to 95794 states and 129729 transitions. [2021-12-07 01:15:18,417 INFO L78 Accepts]: Start accepts. Automaton has 95794 states and 129729 transitions. Word has length 405 [2021-12-07 01:15:18,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:15:18,418 INFO L470 AbstractCegarLoop]: Abstraction has 95794 states and 129729 transitions. [2021-12-07 01:15:18,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-12-07 01:15:18,418 INFO L276 IsEmpty]: Start isEmpty. Operand 95794 states and 129729 transitions. [2021-12-07 01:15:18,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-12-07 01:15:18,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:15:18,477 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:15:18,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-07 01:15:18,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-07 01:15:18,679 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:15:18,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:15:18,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1594705419, now seen corresponding path program 1 times [2021-12-07 01:15:18,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:15:18,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855476736] [2021-12-07 01:15:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:18,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:15:18,914 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:15:18,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725882292] [2021-12-07 01:15:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:18,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:15:18,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:15:18,916 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:15:18,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 01:15:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:20,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 10854 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:15:20,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:15:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-12-07 01:15:20,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:15:20,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:15:20,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855476736] [2021-12-07 01:15:20,522 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:15:20,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725882292] [2021-12-07 01:15:20,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725882292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:15:20,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:15:20,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:15:20,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192144676] [2021-12-07 01:15:20,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:15:20,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:15:20,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:15:20,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:15:20,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:15:20,523 INFO L87 Difference]: Start difference. First operand 95794 states and 129729 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-12-07 01:15:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:15:25,240 INFO L93 Difference]: Finished difference Result 195746 states and 265782 transitions. [2021-12-07 01:15:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:15:25,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 481 [2021-12-07 01:15:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:15:25,627 INFO L225 Difference]: With dead ends: 195746 [2021-12-07 01:15:25,628 INFO L226 Difference]: Without dead ends: 99971 [2021-12-07 01:15:25,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:15:25,876 INFO L933 BasicCegarLoop]: 3050 mSDtfsCounter, 315 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 5721 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:15:25,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 5721 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:15:25,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99971 states. [2021-12-07 01:15:30,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99971 to 95842. [2021-12-07 01:15:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95842 states, 67952 states have (on average 1.272089121732988) internal successors, (86441), 69190 states have internal predecessors, (86441), 21188 states have call successors, (21188), 6491 states have call predecessors, (21188), 6701 states have return successors, (22148), 21008 states have call predecessors, (22148), 21184 states have call successors, (22148) [2021-12-07 01:15:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95842 states to 95842 states and 129777 transitions. [2021-12-07 01:15:30,788 INFO L78 Accepts]: Start accepts. Automaton has 95842 states and 129777 transitions. Word has length 481 [2021-12-07 01:15:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:15:30,788 INFO L470 AbstractCegarLoop]: Abstraction has 95842 states and 129777 transitions. [2021-12-07 01:15:30,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-12-07 01:15:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 95842 states and 129777 transitions. [2021-12-07 01:15:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2021-12-07 01:15:30,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:15:30,831 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:15:30,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-07 01:15:31,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-07 01:15:31,033 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:15:31,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:15:31,034 INFO L85 PathProgramCache]: Analyzing trace with hash -891591865, now seen corresponding path program 1 times [2021-12-07 01:15:31,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:15:31,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617537407] [2021-12-07 01:15:31,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:15:31,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:15:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:15:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:15:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:15:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:15:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:15:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:15:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:15:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:15:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:15:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:15:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:15:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:15:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:15:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:15:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-07 01:15:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-07 01:15:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-07 01:15:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-07 01:15:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:15:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:15:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-07 01:15:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:15:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-07 01:15:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-07 01:15:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-07 01:15:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:15:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-07 01:15:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-07 01:15:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-07 01:15:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-12-07 01:15:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-07 01:15:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:15:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:15:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-07 01:15:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-07 01:15:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:15:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:15:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-12-07 01:15:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:15:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:15:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-07 01:15:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-12-07 01:15:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2021-12-07 01:15:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-12-07 01:15:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-07 01:15:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-12-07 01:15:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-12-07 01:15:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2021-12-07 01:15:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-07 01:15:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-07 01:15:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2021-12-07 01:15:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-12-07 01:15:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-12-07 01:15:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:15:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2021-12-07 01:15:31,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:15:31,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617537407] [2021-12-07 01:15:31,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617537407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:15:31,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:15:31,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:15:31,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540567142] [2021-12-07 01:15:31,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:15:31,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:15:31,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:15:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:15:31,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:15:31,959 INFO L87 Difference]: Start difference. First operand 95842 states and 129777 transitions. Second operand has 11 states, 11 states have (on average 20.636363636363637) internal successors, (227), 6 states have internal predecessors, (227), 2 states have call successors, (56), 7 states have call predecessors, (56), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-12-07 01:15:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:15:56,751 INFO L93 Difference]: Finished difference Result 286758 states and 396185 transitions. [2021-12-07 01:15:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 01:15:56,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.636363636363637) internal successors, (227), 6 states have internal predecessors, (227), 2 states have call successors, (56), 7 states have call predecessors, (56), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 532 [2021-12-07 01:15:56,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:15:57,462 INFO L225 Difference]: With dead ends: 286758 [2021-12-07 01:15:57,462 INFO L226 Difference]: Without dead ends: 190935 [2021-12-07 01:15:57,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-12-07 01:15:57,759 INFO L933 BasicCegarLoop]: 5020 mSDtfsCounter, 11255 mSDsluCounter, 10707 mSDsCounter, 0 mSdLazyCounter, 12309 mSolverCounterSat, 8595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11991 SdHoareTripleChecker+Valid, 15727 SdHoareTripleChecker+Invalid, 20904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8595 IncrementalHoareTripleChecker+Valid, 12309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:15:57,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11991 Valid, 15727 Invalid, 20904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8595 Valid, 12309 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2021-12-07 01:15:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190935 states. [2021-12-07 01:16:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190935 to 157512. [2021-12-07 01:16:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157512 states, 111852 states have (on average 1.2725118907127275) internal successors, (142333), 113866 states have internal predecessors, (142333), 34468 states have call successors, (34468), 10837 states have call predecessors, (34468), 11191 states have return successors, (36028), 34200 states have call predecessors, (36028), 34464 states have call successors, (36028) [2021-12-07 01:16:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157512 states to 157512 states and 212829 transitions. [2021-12-07 01:16:06,501 INFO L78 Accepts]: Start accepts. Automaton has 157512 states and 212829 transitions. Word has length 532 [2021-12-07 01:16:06,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:16:06,501 INFO L470 AbstractCegarLoop]: Abstraction has 157512 states and 212829 transitions. [2021-12-07 01:16:06,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.636363636363637) internal successors, (227), 6 states have internal predecessors, (227), 2 states have call successors, (56), 7 states have call predecessors, (56), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-12-07 01:16:06,502 INFO L276 IsEmpty]: Start isEmpty. Operand 157512 states and 212829 transitions. [2021-12-07 01:16:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2021-12-07 01:16:06,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:16:06,580 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:16:06,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 01:16:06,580 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:16:06,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:16:06,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1907083529, now seen corresponding path program 1 times [2021-12-07 01:16:06,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:16:06,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827346977] [2021-12-07 01:16:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:06,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:16:06,775 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:16:06,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376800317] [2021-12-07 01:16:06,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:06,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:16:06,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:16:06,776 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:16:06,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 01:16:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:08,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 11346 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:16:08,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:16:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 161 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-12-07 01:16:08,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:16:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-12-07 01:16:09,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:16:09,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827346977] [2021-12-07 01:16:09,008 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:16:09,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376800317] [2021-12-07 01:16:09,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376800317] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:16:09,008 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:16:09,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-07 01:16:09,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805687631] [2021-12-07 01:16:09,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:16:09,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:16:09,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:16:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:16:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:16:09,010 INFO L87 Difference]: Start difference. First operand 157512 states and 212829 transitions. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 2 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2021-12-07 01:16:18,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:16:18,578 INFO L93 Difference]: Finished difference Result 337689 states and 460033 transitions. [2021-12-07 01:16:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:16:18,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 2 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 557 [2021-12-07 01:16:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:16:19,378 INFO L225 Difference]: With dead ends: 337689 [2021-12-07 01:16:19,378 INFO L226 Difference]: Without dead ends: 180196 [2021-12-07 01:16:19,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1112 GetRequests, 1108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:16:19,828 INFO L933 BasicCegarLoop]: 3284 mSDtfsCounter, 1574 mSDsluCounter, 8914 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 12198 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:16:19,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1886 Valid, 12198 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 01:16:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180196 states. [2021-12-07 01:16:27,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180196 to 159600. [2021-12-07 01:16:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159600 states, 113220 states have (on average 1.2711270093623035) internal successors, (143917), 115234 states have internal predecessors, (143917), 35188 states have call successors, (35188), 10837 states have call predecessors, (35188), 11191 states have return successors, (36748), 34920 states have call predecessors, (36748), 35184 states have call successors, (36748) [2021-12-07 01:16:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159600 states to 159600 states and 215853 transitions. [2021-12-07 01:16:28,287 INFO L78 Accepts]: Start accepts. Automaton has 159600 states and 215853 transitions. Word has length 557 [2021-12-07 01:16:28,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:16:28,288 INFO L470 AbstractCegarLoop]: Abstraction has 159600 states and 215853 transitions. [2021-12-07 01:16:28,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 2 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2021-12-07 01:16:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 159600 states and 215853 transitions. [2021-12-07 01:16:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2021-12-07 01:16:28,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:16:28,351 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:16:28,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-07 01:16:28,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:16:28,553 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:16:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:16:28,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1357127558, now seen corresponding path program 1 times [2021-12-07 01:16:28,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:16:28,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769790922] [2021-12-07 01:16:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:28,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:16:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:16:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:16:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:16:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:16:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:16:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:16:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:16:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:16:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:16:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:16:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:16:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:16:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:16:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:16:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:16:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:16:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-07 01:16:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-07 01:16:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-07 01:16:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-07 01:16:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-07 01:16:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:16:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 01:16:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-07 01:16:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-07 01:16:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-12-07 01:16:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-12-07 01:16:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2021-12-07 01:16:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-12-07 01:16:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2021-12-07 01:16:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-12-07 01:16:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-12-07 01:16:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2021-12-07 01:16:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2021-12-07 01:16:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-07 01:16:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2021-12-07 01:16:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2021-12-07 01:16:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2021-12-07 01:16:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2021-12-07 01:16:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2021-12-07 01:16:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2021-12-07 01:16:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2021-12-07 01:16:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2021-12-07 01:16:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2021-12-07 01:16:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2021-12-07 01:16:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2021-12-07 01:16:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2021-12-07 01:16:29,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:16:29,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769790922] [2021-12-07 01:16:29,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769790922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:16:29,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:16:29,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:16:29,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821640804] [2021-12-07 01:16:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:16:29,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:16:29,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:16:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:16:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:16:29,530 INFO L87 Difference]: Start difference. First operand 159600 states and 215853 transitions. Second operand has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 3 states have internal predecessors, (250), 2 states have call successors, (62), 6 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-12-07 01:16:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:16:47,424 INFO L93 Difference]: Finished difference Result 336304 states and 458704 transitions. [2021-12-07 01:16:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:16:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 3 states have internal predecessors, (250), 2 states have call successors, (62), 6 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 625 [2021-12-07 01:16:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:16:48,076 INFO L225 Difference]: With dead ends: 336304 [2021-12-07 01:16:48,076 INFO L226 Difference]: Without dead ends: 176723 [2021-12-07 01:16:48,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:16:48,506 INFO L933 BasicCegarLoop]: 4053 mSDtfsCounter, 3781 mSDsluCounter, 6379 mSDsCounter, 0 mSdLazyCounter, 4667 mSolverCounterSat, 2835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 10432 SdHoareTripleChecker+Invalid, 7502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2835 IncrementalHoareTripleChecker+Valid, 4667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:16:48,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4083 Valid, 10432 Invalid, 7502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2835 Valid, 4667 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-12-07 01:16:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176723 states. [2021-12-07 01:16:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176723 to 159600. [2021-12-07 01:16:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159600 states, 113220 states have (on average 1.2679473591238297) internal successors, (143557), 115234 states have internal predecessors, (143557), 35188 states have call successors, (35188), 10837 states have call predecessors, (35188), 11191 states have return successors, (36748), 34920 states have call predecessors, (36748), 35184 states have call successors, (36748) [2021-12-07 01:16:57,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159600 states to 159600 states and 215493 transitions. [2021-12-07 01:16:57,327 INFO L78 Accepts]: Start accepts. Automaton has 159600 states and 215493 transitions. Word has length 625 [2021-12-07 01:16:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:16:57,328 INFO L470 AbstractCegarLoop]: Abstraction has 159600 states and 215493 transitions. [2021-12-07 01:16:57,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 3 states have internal predecessors, (250), 2 states have call successors, (62), 6 states have call predecessors, (62), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-12-07 01:16:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 159600 states and 215493 transitions. [2021-12-07 01:16:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2021-12-07 01:16:57,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:16:57,389 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:16:57,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 01:16:57,389 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:16:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:16:57,390 INFO L85 PathProgramCache]: Analyzing trace with hash -917639161, now seen corresponding path program 1 times [2021-12-07 01:16:57,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:16:57,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968020906] [2021-12-07 01:16:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:57,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:16:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:16:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:16:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:16:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:16:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:16:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:16:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:16:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:16:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:16:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:16:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:16:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:16:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:16:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:16:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:16:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:16:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:16:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:16:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:16:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:16:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:16:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:16:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:16:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-07 01:16:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-07 01:16:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-07 01:16:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:16:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-07 01:16:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-12-07 01:16:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-07 01:16:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:16:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-12-07 01:16:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-12-07 01:16:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2021-12-07 01:16:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:16:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:16:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2021-12-07 01:16:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:16:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:16:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2021-12-07 01:16:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2021-12-07 01:16:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2021-12-07 01:16:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2021-12-07 01:16:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2021-12-07 01:16:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2021-12-07 01:16:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 577 [2021-12-07 01:16:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:16:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2021-12-07 01:16:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2021-12-07 01:16:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2021-12-07 01:16:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2021-12-07 01:16:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2021-12-07 01:16:58,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:16:58,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968020906] [2021-12-07 01:16:58,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968020906] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:16:58,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243256490] [2021-12-07 01:16:58,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:16:58,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:16:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:16:58,360 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:16:58,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 01:16:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:16:59,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 10794 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:16:59,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:17:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2021-12-07 01:17:00,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:17:00,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243256490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:17:00,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:17:00,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-07 01:17:00,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794162189] [2021-12-07 01:17:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:17:00,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:17:00,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:17:00,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:17:00,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:17:00,234 INFO L87 Difference]: Start difference. First operand 159600 states and 215493 transitions. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2021-12-07 01:17:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:17:08,041 INFO L93 Difference]: Finished difference Result 319685 states and 432021 transitions. [2021-12-07 01:17:08,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:17:08,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 626 [2021-12-07 01:17:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:17:08,694 INFO L225 Difference]: With dead ends: 319685 [2021-12-07 01:17:08,694 INFO L226 Difference]: Without dead ends: 160104 [2021-12-07 01:17:09,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 793 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:17:09,084 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 9 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:17:09,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 5200 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:17:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160104 states. [2021-12-07 01:17:16,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160104 to 160104. [2021-12-07 01:17:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160104 states, 113580 states have (on average 1.2677319950695545) internal successors, (143989), 115666 states have internal predecessors, (143989), 35260 states have call successors, (35260), 10837 states have call predecessors, (35260), 11263 states have return successors, (36908), 34992 states have call predecessors, (36908), 35256 states have call successors, (36908) [2021-12-07 01:17:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160104 states to 160104 states and 216157 transitions. [2021-12-07 01:17:17,498 INFO L78 Accepts]: Start accepts. Automaton has 160104 states and 216157 transitions. Word has length 626 [2021-12-07 01:17:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:17:17,498 INFO L470 AbstractCegarLoop]: Abstraction has 160104 states and 216157 transitions. [2021-12-07 01:17:17,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2021-12-07 01:17:17,499 INFO L276 IsEmpty]: Start isEmpty. Operand 160104 states and 216157 transitions. [2021-12-07 01:17:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2021-12-07 01:17:17,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:17:17,679 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:17:17,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-07 01:17:17,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-12-07 01:17:17,882 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:17:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:17:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash -830135087, now seen corresponding path program 1 times [2021-12-07 01:17:17,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:17:17,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124598904] [2021-12-07 01:17:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:17:17,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:17:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:17:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:17:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:17:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:17:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:17:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:17:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:17:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:17:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:17:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:17:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:17:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:17:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:17:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:17:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:17:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:17:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:17:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:17:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:17:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:17:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:17:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:17:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-07 01:17:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-07 01:17:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-07 01:17:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:17:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-07 01:17:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-12-07 01:17:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-07 01:17:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:17:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-12-07 01:17:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-12-07 01:17:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-07 01:17:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-07 01:17:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2021-12-07 01:17:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2021-12-07 01:17:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2021-12-07 01:17:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:17:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2021-12-07 01:17:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2021-12-07 01:17:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2021-12-07 01:17:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2021-12-07 01:17:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2021-12-07 01:17:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2021-12-07 01:17:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2021-12-07 01:17:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2021-12-07 01:17:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2021-12-07 01:17:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2021-12-07 01:17:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2021-12-07 01:17:18,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:17:18,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124598904] [2021-12-07 01:17:18,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124598904] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:17:18,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482069664] [2021-12-07 01:17:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:17:18,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:17:18,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:17:18,961 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:17:18,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-07 01:17:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:20,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 10892 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:17:20,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:17:20,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2021-12-07 01:17:20,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:17:20,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482069664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:17:20,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:17:20,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2021-12-07 01:17:20,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97095134] [2021-12-07 01:17:20,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:17:20,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:17:20,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:17:20,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:17:20,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:17:20,777 INFO L87 Difference]: Start difference. First operand 160104 states and 216157 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-12-07 01:17:28,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:17:28,815 INFO L93 Difference]: Finished difference Result 324221 states and 439229 transitions. [2021-12-07 01:17:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:17:28,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 633 [2021-12-07 01:17:28,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:17:29,487 INFO L225 Difference]: With dead ends: 324221 [2021-12-07 01:17:29,488 INFO L226 Difference]: Without dead ends: 164136 [2021-12-07 01:17:30,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:17:30,017 INFO L933 BasicCegarLoop]: 2687 mSDtfsCounter, 72 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:17:30,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 5248 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:17:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164136 states. [2021-12-07 01:17:38,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164136 to 160824. [2021-12-07 01:17:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160824 states, 114228 states have (on average 1.268104142592009) internal successors, (144853), 116314 states have internal predecessors, (144853), 35332 states have call successors, (35332), 10837 states have call predecessors, (35332), 11263 states have return successors, (36980), 35064 states have call predecessors, (36980), 35328 states have call successors, (36980) [2021-12-07 01:17:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160824 states to 160824 states and 217165 transitions. [2021-12-07 01:17:38,744 INFO L78 Accepts]: Start accepts. Automaton has 160824 states and 217165 transitions. Word has length 633 [2021-12-07 01:17:38,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:17:38,744 INFO L470 AbstractCegarLoop]: Abstraction has 160824 states and 217165 transitions. [2021-12-07 01:17:38,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-12-07 01:17:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 160824 states and 217165 transitions. [2021-12-07 01:17:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2021-12-07 01:17:38,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:17:38,923 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:17:38,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-07 01:17:39,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-12-07 01:17:39,125 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:17:39,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:17:39,127 INFO L85 PathProgramCache]: Analyzing trace with hash 66336017, now seen corresponding path program 1 times [2021-12-07 01:17:39,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:17:39,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426732953] [2021-12-07 01:17:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:17:39,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:17:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:17:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:17:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:17:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:17:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:17:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:17:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:17:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:17:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:17:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:17:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:17:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:17:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:17:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:17:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:17:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:17:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:17:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:17:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:17:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:17:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:17:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:17:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:17:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-07 01:17:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-07 01:17:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-07 01:17:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:17:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-07 01:17:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-12-07 01:17:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-07 01:17:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:17:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-12-07 01:17:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-12-07 01:17:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-07 01:17:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-07 01:17:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:17:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:17:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2021-12-07 01:17:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:17:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:17:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2021-12-07 01:17:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2021-12-07 01:17:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:17:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2021-12-07 01:17:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2021-12-07 01:17:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2021-12-07 01:17:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2021-12-07 01:17:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2021-12-07 01:17:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2021-12-07 01:17:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2021-12-07 01:17:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2021-12-07 01:17:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2021-12-07 01:17:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2021-12-07 01:17:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2021-12-07 01:17:40,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:17:40,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426732953] [2021-12-07 01:17:40,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426732953] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:17:40,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414030891] [2021-12-07 01:17:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:17:40,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:17:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:17:40,357 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:17:40,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-07 01:17:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:17:41,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 10893 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:17:41,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:17:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 490 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-12-07 01:17:42,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:17:42,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414030891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:17:42,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:17:42,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2021-12-07 01:17:42,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476830521] [2021-12-07 01:17:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:17:42,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:17:42,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:17:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:17:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:17:42,467 INFO L87 Difference]: Start difference. First operand 160824 states and 217165 transitions. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 01:17:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:17:51,205 INFO L93 Difference]: Finished difference Result 320765 states and 433421 transitions. [2021-12-07 01:17:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:17:51,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 633 [2021-12-07 01:17:51,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:17:51,922 INFO L225 Difference]: With dead ends: 320765 [2021-12-07 01:17:51,922 INFO L226 Difference]: Without dead ends: 159960 [2021-12-07 01:17:52,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:17:52,293 INFO L933 BasicCegarLoop]: 2603 mSDtfsCounter, 161 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 7563 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:17:52,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 7563 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:17:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159960 states. [2021-12-07 01:18:00,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159960 to 159960. [2021-12-07 01:18:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159960 states, 113508 states have (on average 1.266633188850125) internal successors, (143773), 115594 states have internal predecessors, (143773), 35188 states have call successors, (35188), 10837 states have call predecessors, (35188), 11263 states have return successors, (36836), 34920 states have call predecessors, (36836), 35184 states have call successors, (36836) [2021-12-07 01:18:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159960 states to 159960 states and 215797 transitions. [2021-12-07 01:18:01,279 INFO L78 Accepts]: Start accepts. Automaton has 159960 states and 215797 transitions. Word has length 633 [2021-12-07 01:18:01,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:18:01,280 INFO L470 AbstractCegarLoop]: Abstraction has 159960 states and 215797 transitions. [2021-12-07 01:18:01,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 01:18:01,280 INFO L276 IsEmpty]: Start isEmpty. Operand 159960 states and 215797 transitions. [2021-12-07 01:18:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2021-12-07 01:18:01,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:18:01,339 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:18:01,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-07 01:18:01,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-12-07 01:18:01,541 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:18:01,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:18:01,542 INFO L85 PathProgramCache]: Analyzing trace with hash -337765472, now seen corresponding path program 1 times [2021-12-07 01:18:01,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:18:01,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908207803] [2021-12-07 01:18:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:18:01,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:18:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:01,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:18:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:18:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:18:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:18:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:18:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:18:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:18:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:18:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:18:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:18:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:18:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:18:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:18:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:18:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:18:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:18:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:18:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:18:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:18:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 01:18:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:18:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-07 01:18:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-07 01:18:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-07 01:18:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-07 01:18:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-07 01:18:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:18:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-12-07 01:18:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-07 01:18:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-07 01:18:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-12-07 01:18:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-07 01:18:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2021-12-07 01:18:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-07 01:18:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-12-07 01:18:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:18:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2021-12-07 01:18:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:18:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2021-12-07 01:18:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2021-12-07 01:18:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2021-12-07 01:18:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-12-07 01:18:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:18:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2021-12-07 01:18:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2021-12-07 01:18:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-12-07 01:18:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2021-12-07 01:18:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2021-12-07 01:18:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2021-12-07 01:18:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2021-12-07 01:18:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2021-12-07 01:18:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2021-12-07 01:18:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2021-12-07 01:18:02,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:18:02,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908207803] [2021-12-07 01:18:02,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908207803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:18:02,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:18:02,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:18:02,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516355943] [2021-12-07 01:18:02,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:18:02,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:18:02,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:18:02,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:18:02,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:18:02,696 INFO L87 Difference]: Start difference. First operand 159960 states and 215797 transitions. Second operand has 7 states, 7 states have (on average 36.714285714285715) internal successors, (257), 3 states have internal predecessors, (257), 3 states have call successors, (71), 7 states have call predecessors, (71), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 01:18:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:18:23,733 INFO L93 Difference]: Finished difference Result 336837 states and 459033 transitions. [2021-12-07 01:18:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:18:23,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.714285714285715) internal successors, (257), 3 states have internal predecessors, (257), 3 states have call successors, (71), 7 states have call predecessors, (71), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 726 [2021-12-07 01:18:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:18:24,386 INFO L225 Difference]: With dead ends: 336837 [2021-12-07 01:18:24,386 INFO L226 Difference]: Without dead ends: 176896 [2021-12-07 01:18:24,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:18:24,836 INFO L933 BasicCegarLoop]: 4788 mSDtfsCounter, 3376 mSDsluCounter, 9119 mSDsCounter, 0 mSdLazyCounter, 6641 mSolverCounterSat, 1876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 13907 SdHoareTripleChecker+Invalid, 8517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1876 IncrementalHoareTripleChecker+Valid, 6641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:18:24,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3766 Valid, 13907 Invalid, 8517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1876 Valid, 6641 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2021-12-07 01:18:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176896 states. [2021-12-07 01:18:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176896 to 158729. [2021-12-07 01:18:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158729 states, 112623 states have (on average 1.2667217175887695) internal successors, (142662), 114584 states have internal predecessors, (142662), 35083 states have call successors, (35083), 10768 states have call predecessors, (35083), 11022 states have return successors, (35755), 34768 states have call predecessors, (35755), 34967 states have call successors, (35755) [2021-12-07 01:18:33,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158729 states to 158729 states and 213500 transitions. [2021-12-07 01:18:33,698 INFO L78 Accepts]: Start accepts. Automaton has 158729 states and 213500 transitions. Word has length 726 [2021-12-07 01:18:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:18:33,699 INFO L470 AbstractCegarLoop]: Abstraction has 158729 states and 213500 transitions. [2021-12-07 01:18:33,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.714285714285715) internal successors, (257), 3 states have internal predecessors, (257), 3 states have call successors, (71), 7 states have call predecessors, (71), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 01:18:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 158729 states and 213500 transitions. [2021-12-07 01:18:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2021-12-07 01:18:33,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:18:33,769 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:18:33,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-07 01:18:33,770 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:18:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:18:33,770 INFO L85 PathProgramCache]: Analyzing trace with hash -847238562, now seen corresponding path program 1 times [2021-12-07 01:18:33,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:18:33,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728207119] [2021-12-07 01:18:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:18:33,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:18:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:18:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:18:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:18:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:18:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:18:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:18:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:18:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:18:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:18:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:18:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:18:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:18:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:18:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:18:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:18:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:18:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:18:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:18:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:18:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 01:18:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:18:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-07 01:18:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-07 01:18:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-07 01:18:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-07 01:18:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-07 01:18:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:18:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-12-07 01:18:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-07 01:18:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-07 01:18:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-12-07 01:18:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:34,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-07 01:18:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2021-12-07 01:18:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-07 01:18:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-12-07 01:18:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:18:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2021-12-07 01:18:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:18:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2021-12-07 01:18:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2021-12-07 01:18:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2021-12-07 01:18:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-12-07 01:18:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:18:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2021-12-07 01:18:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2021-12-07 01:18:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-12-07 01:18:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2021-12-07 01:18:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2021-12-07 01:18:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2021-12-07 01:18:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2021-12-07 01:18:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2021-12-07 01:18:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2021-12-07 01:18:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2021-12-07 01:18:35,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:18:35,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728207119] [2021-12-07 01:18:35,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728207119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:18:35,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:18:35,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:18:35,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076370062] [2021-12-07 01:18:35,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:18:35,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:18:35,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:18:35,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:18:35,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:18:35,228 INFO L87 Difference]: Start difference. First operand 158729 states and 213500 transitions. Second operand has 9 states, 9 states have (on average 28.555555555555557) internal successors, (257), 5 states have internal predecessors, (257), 2 states have call successors, (71), 6 states have call predecessors, (71), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 01:18:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:18:49,453 INFO L93 Difference]: Finished difference Result 182717 states and 247452 transitions. [2021-12-07 01:18:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:18:49,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 28.555555555555557) internal successors, (257), 5 states have internal predecessors, (257), 2 states have call successors, (71), 6 states have call predecessors, (71), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 726 [2021-12-07 01:18:49,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:18:50,033 INFO L225 Difference]: With dead ends: 182717 [2021-12-07 01:18:50,033 INFO L226 Difference]: Without dead ends: 173202 [2021-12-07 01:18:50,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:18:50,123 INFO L933 BasicCegarLoop]: 2462 mSDtfsCounter, 1266 mSDsluCounter, 8797 mSDsCounter, 0 mSdLazyCounter, 4516 mSolverCounterSat, 1251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 11259 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1251 IncrementalHoareTripleChecker+Valid, 4516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:18:50,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 11259 Invalid, 5767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1251 Valid, 4516 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-07 01:18:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173202 states. [2021-12-07 01:18:58,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173202 to 155672. [2021-12-07 01:18:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155672 states, 110582 states have (on average 1.2646271545097756) internal successors, (139845), 112410 states have internal predecessors, (139845), 34180 states have call successors, (34180), 10654 states have call predecessors, (34180), 10909 states have return successors, (34854), 33903 states have call predecessors, (34854), 34066 states have call successors, (34854) [2021-12-07 01:18:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155672 states to 155672 states and 208879 transitions. [2021-12-07 01:18:58,958 INFO L78 Accepts]: Start accepts. Automaton has 155672 states and 208879 transitions. Word has length 726 [2021-12-07 01:18:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:18:58,959 INFO L470 AbstractCegarLoop]: Abstraction has 155672 states and 208879 transitions. [2021-12-07 01:18:58,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.555555555555557) internal successors, (257), 5 states have internal predecessors, (257), 2 states have call successors, (71), 6 states have call predecessors, (71), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-12-07 01:18:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 155672 states and 208879 transitions. [2021-12-07 01:18:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2021-12-07 01:18:59,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:18:59,023 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:18:59,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-07 01:18:59,023 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:18:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:18:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 477404102, now seen corresponding path program 1 times [2021-12-07 01:18:59,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:18:59,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758936386] [2021-12-07 01:18:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:18:59,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:18:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:18:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:18:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:18:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:18:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:18:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:18:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:18:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:18:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:18:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:18:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:18:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:18:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:18:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:18:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:18:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:18:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:18:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:18:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:18:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:18:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:18:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 01:18:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:18:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-07 01:18:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-07 01:18:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-07 01:18:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-07 01:18:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-07 01:18:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:18:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-12-07 01:18:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-07 01:18:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-07 01:18:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-12-07 01:18:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-07 01:18:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2021-12-07 01:18:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-07 01:18:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-12-07 01:18:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:18:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2021-12-07 01:18:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:18:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2021-12-07 01:18:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:18:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:18:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2021-12-07 01:18:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:18:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:18:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2021-12-07 01:18:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-12-07 01:18:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:18:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2021-12-07 01:18:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:18:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2021-12-07 01:18:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:19:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 01:19:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:19:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2021-12-07 01:19:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2021-12-07 01:19:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2021-12-07 01:19:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2021-12-07 01:19:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1784 trivial. 0 not checked. [2021-12-07 01:19:00,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:19:00,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758936386] [2021-12-07 01:19:00,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758936386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:19:00,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:19:00,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:19:00,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306386811] [2021-12-07 01:19:00,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:19:00,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:19:00,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:19:00,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:19:00,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:19:00,082 INFO L87 Difference]: Start difference. First operand 155672 states and 208879 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 3 states have internal predecessors, (274), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-07 01:19:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:19:10,682 INFO L93 Difference]: Finished difference Result 243244 states and 328255 transitions. [2021-12-07 01:19:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:19:10,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 3 states have internal predecessors, (274), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 753 [2021-12-07 01:19:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:19:10,991 INFO L225 Difference]: With dead ends: 243244 [2021-12-07 01:19:10,991 INFO L226 Difference]: Without dead ends: 87591 [2021-12-07 01:19:11,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:19:11,507 INFO L933 BasicCegarLoop]: 2444 mSDtfsCounter, 2971 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 1102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 3645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1102 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:19:11,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3336 Valid, 5077 Invalid, 3645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1102 Valid, 2543 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-07 01:19:11,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87591 states. [2021-12-07 01:19:15,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87591 to 78637. [2021-12-07 01:19:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78637 states, 55859 states have (on average 1.2652929697989581) internal successors, (70678), 56781 states have internal predecessors, (70678), 17250 states have call successors, (17250), 5400 states have call predecessors, (17250), 5527 states have return successors, (17586), 17110 states have call predecessors, (17586), 17192 states have call successors, (17586) [2021-12-07 01:19:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78637 states to 78637 states and 105514 transitions. [2021-12-07 01:19:15,971 INFO L78 Accepts]: Start accepts. Automaton has 78637 states and 105514 transitions. Word has length 753 [2021-12-07 01:19:15,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:19:15,971 INFO L470 AbstractCegarLoop]: Abstraction has 78637 states and 105514 transitions. [2021-12-07 01:19:15,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 3 states have internal predecessors, (274), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-07 01:19:15,971 INFO L276 IsEmpty]: Start isEmpty. Operand 78637 states and 105514 transitions. [2021-12-07 01:19:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 751 [2021-12-07 01:19:16,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:19:16,007 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:19:16,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-07 01:19:16,007 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:19:16,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:19:16,007 INFO L85 PathProgramCache]: Analyzing trace with hash 966841006, now seen corresponding path program 1 times [2021-12-07 01:19:16,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:19:16,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251880123] [2021-12-07 01:19:16,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:19:16,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:19:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:19:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:19:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:19:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:19:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:19:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:19:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:19:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:19:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:19:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:19:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:19:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:19:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:19:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:19:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:19:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:19:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:19:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:19:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:19:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 01:19:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:19:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-07 01:19:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-07 01:19:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-07 01:19:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-07 01:19:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-07 01:19:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:19:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-12-07 01:19:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-07 01:19:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-07 01:19:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-12-07 01:19:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-07 01:19:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2021-12-07 01:19:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-07 01:19:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-12-07 01:19:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:19:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2021-12-07 01:19:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:19:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:16,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2021-12-07 01:19:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2021-12-07 01:19:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2021-12-07 01:19:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-12-07 01:19:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:19:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2021-12-07 01:19:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2021-12-07 01:19:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2021-12-07 01:19:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 01:19:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:19:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 721 [2021-12-07 01:19:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 726 [2021-12-07 01:19:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 732 [2021-12-07 01:19:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 742 [2021-12-07 01:19:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1819 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2021-12-07 01:19:17,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:19:17,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251880123] [2021-12-07 01:19:17,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251880123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:19:17,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:19:17,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:19:17,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637659724] [2021-12-07 01:19:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:19:17,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:19:17,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:19:17,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:19:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:19:17,193 INFO L87 Difference]: Start difference. First operand 78637 states and 105514 transitions. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (73), 7 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-12-07 01:19:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:19:27,041 INFO L93 Difference]: Finished difference Result 167882 states and 227536 transitions. [2021-12-07 01:19:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:19:27,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (73), 7 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 750 [2021-12-07 01:19:27,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:19:27,388 INFO L225 Difference]: With dead ends: 167882 [2021-12-07 01:19:27,388 INFO L226 Difference]: Without dead ends: 89929 [2021-12-07 01:19:27,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:19:27,608 INFO L933 BasicCegarLoop]: 2487 mSDtfsCounter, 2403 mSDsluCounter, 5930 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 2377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 8417 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2377 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:19:27,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2525 Valid, 8417 Invalid, 5529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2377 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-07 01:19:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89929 states. [2021-12-07 01:19:31,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89929 to 79447. [2021-12-07 01:19:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79447 states, 56507 states have (on average 1.2660732298653263) internal successors, (71542), 57429 states have internal predecessors, (71542), 17358 states have call successors, (17358), 5436 states have call predecessors, (17358), 5581 states have return successors, (17712), 17236 states have call predecessors, (17712), 17300 states have call successors, (17712) [2021-12-07 01:19:32,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79447 states to 79447 states and 106612 transitions. [2021-12-07 01:19:32,247 INFO L78 Accepts]: Start accepts. Automaton has 79447 states and 106612 transitions. Word has length 750 [2021-12-07 01:19:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:19:32,248 INFO L470 AbstractCegarLoop]: Abstraction has 79447 states and 106612 transitions. [2021-12-07 01:19:32,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (73), 7 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-12-07 01:19:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 79447 states and 106612 transitions. [2021-12-07 01:19:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2021-12-07 01:19:32,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:19:32,281 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:19:32,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-07 01:19:32,281 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:19:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:19:32,281 INFO L85 PathProgramCache]: Analyzing trace with hash 547469686, now seen corresponding path program 1 times [2021-12-07 01:19:32,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:19:32,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746126463] [2021-12-07 01:19:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:19:32,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:19:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:19:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:19:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:19:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:19:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:19:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:19:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 01:19:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-07 01:19:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-07 01:19:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 01:19:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-07 01:19:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:32,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-07 01:19:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 01:19:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-07 01:19:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 01:19:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-07 01:19:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:19:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 01:19:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-07 01:19:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 01:19:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-07 01:19:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-07 01:19:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-07 01:19:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-07 01:19:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-07 01:19:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-07 01:19:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-07 01:19:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-12-07 01:19:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-07 01:19:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-07 01:19:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-12-07 01:19:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-07 01:19:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2021-12-07 01:19:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-07 01:19:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-12-07 01:19:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-12-07 01:19:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2021-12-07 01:19:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:19:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2021-12-07 01:19:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2021-12-07 01:19:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2021-12-07 01:19:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-12-07 01:19:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:19:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2021-12-07 01:19:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2021-12-07 01:19:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 01:19:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:19:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 713 [2021-12-07 01:19:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 718 [2021-12-07 01:19:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2021-12-07 01:19:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2021-12-07 01:19:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2021-12-07 01:19:33,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:19:33,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746126463] [2021-12-07 01:19:33,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746126463] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:19:33,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:19:33,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:19:33,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458178229] [2021-12-07 01:19:33,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:19:33,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:19:33,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:19:33,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:19:33,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:19:33,545 INFO L87 Difference]: Start difference. First operand 79447 states and 106612 transitions. Second operand has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 7 states have internal predecessors, (270), 2 states have call successors, (72), 7 states have call predecessors, (72), 2 states have return successors, (66), 3 states have call predecessors, (66), 2 states have call successors, (66) [2021-12-07 01:19:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:19:46,851 INFO L93 Difference]: Finished difference Result 172656 states and 234594 transitions. [2021-12-07 01:19:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:19:46,853 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 7 states have internal predecessors, (270), 2 states have call successors, (72), 7 states have call predecessors, (72), 2 states have return successors, (66), 3 states have call predecessors, (66), 2 states have call successors, (66) Word has length 742 [2021-12-07 01:19:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:19:47,289 INFO L225 Difference]: With dead ends: 172656 [2021-12-07 01:19:47,289 INFO L226 Difference]: Without dead ends: 93893 [2021-12-07 01:19:47,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:19:47,453 INFO L933 BasicCegarLoop]: 3034 mSDtfsCounter, 4412 mSDsluCounter, 16493 mSDsCounter, 0 mSdLazyCounter, 6606 mSolverCounterSat, 2426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4559 SdHoareTripleChecker+Valid, 19527 SdHoareTripleChecker+Invalid, 9032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2426 IncrementalHoareTripleChecker+Valid, 6606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:19:47,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4559 Valid, 19527 Invalid, 9032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2426 Valid, 6606 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-12-07 01:19:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93893 states. [2021-12-07 01:19:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93893 to 79531. [2021-12-07 01:19:51,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79531 states, 56579 states have (on average 1.2657346365259194) internal successors, (71614), 57501 states have internal predecessors, (71614), 17358 states have call successors, (17358), 5436 states have call predecessors, (17358), 5593 states have return successors, (17820), 17248 states have call predecessors, (17820), 17300 states have call successors, (17820) [2021-12-07 01:19:52,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79531 states to 79531 states and 106792 transitions. [2021-12-07 01:19:52,051 INFO L78 Accepts]: Start accepts. Automaton has 79531 states and 106792 transitions. Word has length 742 [2021-12-07 01:19:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:19:52,052 INFO L470 AbstractCegarLoop]: Abstraction has 79531 states and 106792 transitions. [2021-12-07 01:19:52,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 7 states have internal predecessors, (270), 2 states have call successors, (72), 7 states have call predecessors, (72), 2 states have return successors, (66), 3 states have call predecessors, (66), 2 states have call successors, (66) [2021-12-07 01:19:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 79531 states and 106792 transitions. [2021-12-07 01:19:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2021-12-07 01:19:52,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:19:52,087 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:19:52,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-07 01:19:52,087 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:19:52,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:19:52,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1779280139, now seen corresponding path program 1 times [2021-12-07 01:19:52,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:19:52,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96976700] [2021-12-07 01:19:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:19:52,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:19:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:19:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:19:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:19:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:19:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:19:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:19:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:19:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 01:19:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-07 01:19:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:19:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-07 01:19:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:19:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-07 01:19:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 01:19:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-07 01:19:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-07 01:19:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:19:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-07 01:19:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-12-07 01:19:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-07 01:19:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:19:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-07 01:19:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-07 01:19:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-12-07 01:19:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-07 01:19:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-12-07 01:19:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-12-07 01:19:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-07 01:19:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-07 01:19:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-07 01:19:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2021-12-07 01:19:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-12-07 01:19:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2021-12-07 01:19:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-12-07 01:19:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2021-12-07 01:19:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2021-12-07 01:19:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2021-12-07 01:19:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2021-12-07 01:19:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:19:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2021-12-07 01:19:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2021-12-07 01:19:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:19:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627 [2021-12-07 01:19:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:19:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2021-12-07 01:19:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:19:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2021-12-07 01:19:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2021-12-07 01:19:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:19:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 675 [2021-12-07 01:19:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:19:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:19:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:19:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:19:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 01:19:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:19:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2021-12-07 01:19:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2021-12-07 01:19:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2021-12-07 01:19:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2021-12-07 01:19:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 1887 trivial. 0 not checked. [2021-12-07 01:19:53,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:19:53,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96976700] [2021-12-07 01:19:53,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96976700] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:19:53,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486984716] [2021-12-07 01:19:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:19:53,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:19:53,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:19:53,307 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:19:53,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-07 01:19:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:19:54,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 11563 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:19:54,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:19:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 109 proven. 1 refuted. 0 times theorem prover too weak. 1802 trivial. 0 not checked. [2021-12-07 01:19:55,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:19:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 1887 trivial. 0 not checked. [2021-12-07 01:19:56,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486984716] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:19:56,101 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:19:56,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 16 [2021-12-07 01:19:56,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615075481] [2021-12-07 01:19:56,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:19:56,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-07 01:19:56,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:19:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-07 01:19:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:19:56,104 INFO L87 Difference]: Start difference. First operand 79531 states and 106792 transitions. Second operand has 16 states, 16 states have (on average 21.375) internal successors, (342), 11 states have internal predecessors, (342), 5 states have call successors, (101), 7 states have call predecessors, (101), 5 states have return successors, (82), 5 states have call predecessors, (82), 5 states have call successors, (82) [2021-12-07 01:20:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:20:10,017 INFO L93 Difference]: Finished difference Result 175604 states and 238594 transitions. [2021-12-07 01:20:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-12-07 01:20:10,018 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 21.375) internal successors, (342), 11 states have internal predecessors, (342), 5 states have call successors, (101), 7 states have call predecessors, (101), 5 states have return successors, (82), 5 states have call predecessors, (82), 5 states have call successors, (82) Word has length 769 [2021-12-07 01:20:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:20:10,372 INFO L225 Difference]: With dead ends: 175604 [2021-12-07 01:20:10,372 INFO L226 Difference]: Without dead ends: 96325 [2021-12-07 01:20:10,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1784 GetRequests, 1746 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=375, Invalid=1185, Unknown=0, NotChecked=0, Total=1560 [2021-12-07 01:20:10,595 INFO L933 BasicCegarLoop]: 2514 mSDtfsCounter, 2173 mSDsluCounter, 8913 mSDsCounter, 0 mSdLazyCounter, 5009 mSolverCounterSat, 1980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 11427 SdHoareTripleChecker+Invalid, 6989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1980 IncrementalHoareTripleChecker+Valid, 5009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:20:10,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2297 Valid, 11427 Invalid, 6989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1980 Valid, 5009 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-12-07 01:20:10,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96325 states. [2021-12-07 01:20:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96325 to 83977. [2021-12-07 01:20:15,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83977 states, 60251 states have (on average 1.2665681897395893) internal successors, (76312), 61065 states have internal predecessors, (76312), 18078 states have call successors, (18078), 5472 states have call predecessors, (18078), 5647 states have return successors, (18666), 18094 states have call predecessors, (18666), 18020 states have call successors, (18666) [2021-12-07 01:20:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83977 states to 83977 states and 113056 transitions. [2021-12-07 01:20:15,891 INFO L78 Accepts]: Start accepts. Automaton has 83977 states and 113056 transitions. Word has length 769 [2021-12-07 01:20:15,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:20:15,892 INFO L470 AbstractCegarLoop]: Abstraction has 83977 states and 113056 transitions. [2021-12-07 01:20:15,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.375) internal successors, (342), 11 states have internal predecessors, (342), 5 states have call successors, (101), 7 states have call predecessors, (101), 5 states have return successors, (82), 5 states have call predecessors, (82), 5 states have call successors, (82) [2021-12-07 01:20:15,892 INFO L276 IsEmpty]: Start isEmpty. Operand 83977 states and 113056 transitions. [2021-12-07 01:20:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2021-12-07 01:20:15,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:20:15,924 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:20:15,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-07 01:20:16,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-12-07 01:20:16,128 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:20:16,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:20:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1199616539, now seen corresponding path program 1 times [2021-12-07 01:20:16,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:20:16,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691568148] [2021-12-07 01:20:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:20:16,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:20:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:20:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:20:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 01:20:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:20:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-07 01:20:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-07 01:20:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:20:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 01:20:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:20:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 01:20:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-07 01:20:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-07 01:20:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:20:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-07 01:20:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:20:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-07 01:20:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:20:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 01:20:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-07 01:20:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-07 01:20:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-07 01:20:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-07 01:20:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-12-07 01:20:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-07 01:20:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:20:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-07 01:20:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-07 01:20:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-12-07 01:20:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-07 01:20:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-12-07 01:20:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-12-07 01:20:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-07 01:20:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-07 01:20:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-07 01:20:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2021-12-07 01:20:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-12-07 01:20:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2021-12-07 01:20:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-12-07 01:20:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2021-12-07 01:20:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2021-12-07 01:20:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2021-12-07 01:20:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2021-12-07 01:20:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-07 01:20:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2021-12-07 01:20:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2021-12-07 01:20:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:20:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627 [2021-12-07 01:20:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-07 01:20:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2021-12-07 01:20:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2021-12-07 01:20:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2021-12-07 01:20:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 661 [2021-12-07 01:20:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-12-07 01:20:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 680 [2021-12-07 01:20:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:20:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:20:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 01:20:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-07 01:20:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 01:20:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2021-12-07 01:20:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2021-12-07 01:20:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2021-12-07 01:20:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2021-12-07 01:20:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 54 proven. 148 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2021-12-07 01:20:17,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:20:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691568148] [2021-12-07 01:20:17,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691568148] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:20:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935197693] [2021-12-07 01:20:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:20:17,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:20:17,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:20:17,426 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:20:17,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-07 01:20:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:19,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 11447 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-07 01:20:19,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:20:19,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1861 trivial. 0 not checked. [2021-12-07 01:20:19,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:20:19,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935197693] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:20:19,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:20:19,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2021-12-07 01:20:19,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992018854] [2021-12-07 01:20:19,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:20:19,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:20:19,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:20:19,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:20:19,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:20:19,716 INFO L87 Difference]: Start difference. First operand 83977 states and 113056 transitions. Second operand has 9 states, 9 states have (on average 29.88888888888889) internal successors, (269), 8 states have internal predecessors, (269), 3 states have call successors, (68), 2 states have call predecessors, (68), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2021-12-07 01:20:26,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:20:26,712 INFO L93 Difference]: Finished difference Result 171732 states and 232061 transitions. [2021-12-07 01:20:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:20:26,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.88888888888889) internal successors, (269), 8 states have internal predecessors, (269), 3 states have call successors, (68), 2 states have call predecessors, (68), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) Word has length 758 [2021-12-07 01:20:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:20:27,056 INFO L225 Difference]: With dead ends: 171732 [2021-12-07 01:20:27,057 INFO L226 Difference]: Without dead ends: 88439 [2021-12-07 01:20:27,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 960 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-12-07 01:20:27,364 INFO L933 BasicCegarLoop]: 3163 mSDtfsCounter, 2579 mSDsluCounter, 19827 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 22990 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:20:27,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2579 Valid, 22990 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-07 01:20:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88439 states. [2021-12-07 01:20:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88439 to 83665. [2021-12-07 01:20:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83665 states, 59995 states have (on average 1.2661055087923994) internal successors, (75960), 60809 states have internal predecessors, (75960), 18030 states have call successors, (18030), 5464 states have call predecessors, (18030), 5639 states have return successors, (18618), 18046 states have call predecessors, (18618), 17972 states have call successors, (18618) [2021-12-07 01:20:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83665 states to 83665 states and 112608 transitions. [2021-12-07 01:20:32,317 INFO L78 Accepts]: Start accepts. Automaton has 83665 states and 112608 transitions. Word has length 758 [2021-12-07 01:20:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:20:32,317 INFO L470 AbstractCegarLoop]: Abstraction has 83665 states and 112608 transitions. [2021-12-07 01:20:32,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.88888888888889) internal successors, (269), 8 states have internal predecessors, (269), 3 states have call successors, (68), 2 states have call predecessors, (68), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2021-12-07 01:20:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 83665 states and 112608 transitions. [2021-12-07 01:20:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2021-12-07 01:20:32,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:20:32,347 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:20:32,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-07 01:20:32,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:20:32,548 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:20:32,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:20:32,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1267452564, now seen corresponding path program 1 times [2021-12-07 01:20:32,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:20:32,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893834138] [2021-12-07 01:20:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:20:32,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:20:32,841 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:20:32,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586285592] [2021-12-07 01:20:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:20:32,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:20:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:20:32,842 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:20:32,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-07 01:20:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:20:34,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 12807 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 01:20:34,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:20:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 226 proven. 16 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-07 01:20:35,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:20:36,003 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2021-12-07 01:20:36,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:20:36,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893834138] [2021-12-07 01:20:36,003 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:20:36,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586285592] [2021-12-07 01:20:36,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586285592] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:20:36,004 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:20:36,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-12-07 01:20:36,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90539441] [2021-12-07 01:20:36,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:20:36,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:20:36,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:20:36,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:20:36,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:20:36,006 INFO L87 Difference]: Start difference. First operand 83665 states and 112608 transitions. Second operand has 8 states, 8 states have (on average 55.5) internal successors, (444), 8 states have internal predecessors, (444), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2021-12-07 01:20:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:20:42,080 INFO L93 Difference]: Finished difference Result 172220 states and 232385 transitions. [2021-12-07 01:20:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:20:42,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 55.5) internal successors, (444), 8 states have internal predecessors, (444), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 809 [2021-12-07 01:20:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:20:42,409 INFO L225 Difference]: With dead ends: 172220 [2021-12-07 01:20:42,410 INFO L226 Difference]: Without dead ends: 89239 [2021-12-07 01:20:42,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1616 GetRequests, 1610 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:20:42,621 INFO L933 BasicCegarLoop]: 3167 mSDtfsCounter, 2022 mSDsluCounter, 8987 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 12154 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:20:42,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2340 Valid, 12154 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 01:20:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89239 states. [2021-12-07 01:20:47,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89239 to 84361. [2021-12-07 01:20:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84361 states, 60451 states have (on average 1.2652892425270053) internal successors, (76488), 61265 states have internal predecessors, (76488), 18270 states have call successors, (18270), 5464 states have call predecessors, (18270), 5639 states have return successors, (18858), 18286 states have call predecessors, (18858), 18212 states have call successors, (18858) [2021-12-07 01:20:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84361 states to 84361 states and 113616 transitions. [2021-12-07 01:20:47,891 INFO L78 Accepts]: Start accepts. Automaton has 84361 states and 113616 transitions. Word has length 809 [2021-12-07 01:20:47,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:20:47,892 INFO L470 AbstractCegarLoop]: Abstraction has 84361 states and 113616 transitions. [2021-12-07 01:20:47,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.5) internal successors, (444), 8 states have internal predecessors, (444), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2021-12-07 01:20:47,892 INFO L276 IsEmpty]: Start isEmpty. Operand 84361 states and 113616 transitions. [2021-12-07 01:20:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2021-12-07 01:20:47,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:20:47,922 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:20:47,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-07 01:20:48,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:20:48,124 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:20:48,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:20:48,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1456340200, now seen corresponding path program 2 times [2021-12-07 01:20:48,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:20:48,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603795757] [2021-12-07 01:20:48,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:20:48,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:20:48,480 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 01:20:48,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564582255] [2021-12-07 01:20:48,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:20:48,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:20:48,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:20:48,481 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:20:48,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-07 01:20:49,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 01:20:49,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:20:49,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 7732 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:20:49,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:20:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1854 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1832 trivial. 0 not checked. [2021-12-07 01:20:50,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:20:50,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:20:50,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603795757] [2021-12-07 01:20:50,419 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 01:20:50,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564582255] [2021-12-07 01:20:50,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564582255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:20:50,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:20:50,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:20:50,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433099409] [2021-12-07 01:20:50,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:20:50,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:20:50,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:20:50,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:20:50,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:20:50,421 INFO L87 Difference]: Start difference. First operand 84361 states and 113616 transitions. Second operand has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (69), 2 states have call predecessors, (69), 1 states have call successors, (69) [2021-12-07 01:20:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:20:52,965 INFO L93 Difference]: Finished difference Result 87645 states and 117134 transitions. [2021-12-07 01:20:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:20:52,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (69), 2 states have call predecessors, (69), 1 states have call successors, (69) Word has length 961 [2021-12-07 01:20:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:20:52,971 INFO L225 Difference]: With dead ends: 87645 [2021-12-07 01:20:52,972 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 01:20:53,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 962 GetRequests, 957 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:20:53,226 INFO L933 BasicCegarLoop]: 2592 mSDtfsCounter, 171 mSDsluCounter, 7543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 10135 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:20:53,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 10135 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:20:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 01:20:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 01:20:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:20:53,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 01:20:53,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 961 [2021-12-07 01:20:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:20:53,233 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:20:53,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (69), 2 states have call predecessors, (69), 1 states have call successors, (69) [2021-12-07 01:20:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:20:53,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 01:20:53,235 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 01:20:53,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-12-07 01:20:53,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1d1e03-36e1-4ede-910c-846f5522ccc7/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-12-07 01:20:53,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.