./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.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_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc0d7108b14cf7ade4256acdb7ea5c36ccda70628af318ac7331527caf0f1ef8 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:18:02,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:18:02,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:18:02,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:18:02,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:18:02,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:18:02,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:18:02,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:18:02,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:18:02,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:18:02,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:18:02,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:18:02,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:18:02,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:18:02,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:18:02,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:18:02,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:18:02,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:18:02,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:18:02,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:18:02,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:18:02,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:18:02,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:18:02,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:18:02,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:18:02,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:18:02,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:18:02,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:18:02,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:18:02,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:18:02,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:18:02,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:18:02,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:18:02,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:18:02,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:18:02,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:18:02,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:18:02,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:18:02,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:18:02,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:18:02,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:18:02,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:18:02,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:18:02,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:18:02,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:18:02,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:18:02,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:18:02,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:18:02,797 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:18:02,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:18:02,798 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:18:02,798 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:18:02,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:18:02,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:18:02,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:18:02,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:18:02,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:18:02,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:18:02,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:18:02,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:18:02,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:18:02,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:18:02,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:18:02,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:18:02,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:18:02,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:18:02,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:18:02,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:18:02,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:18:02,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:18:02,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:18:02,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:18:02,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:18:02,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:18:02,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:18:02,805 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:18:02,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:18:02,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:18:02,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:18:02,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:18:02,806 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc0d7108b14cf7ade4256acdb7ea5c36ccda70628af318ac7331527caf0f1ef8 [2021-11-25 20:18:03,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:18:03,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:18:03,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:18:03,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:18:03,169 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:18:03,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-11-25 20:18:03,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/data/f2a5e915f/ae2c276d26db4973a65068d1584500e3/FLAGab4dcdbc5 [2021-11-25 20:18:04,291 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:18:04,293 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-11-25 20:18:04,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/data/f2a5e915f/ae2c276d26db4973a65068d1584500e3/FLAGab4dcdbc5 [2021-11-25 20:18:04,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/data/f2a5e915f/ae2c276d26db4973a65068d1584500e3 [2021-11-25 20:18:04,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:18:04,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:18:04,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:18:04,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:18:04,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:18:04,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:18:04" (1/1) ... [2021-11-25 20:18:04,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ec4754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:04, skipping insertion in model container [2021-11-25 20:18:04,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:18:04" (1/1) ... [2021-11-25 20:18:04,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:18:04,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:18:07,383 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_71b36192-ee71-4898-847c-cecf19850823/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i[329752,329765] [2021-11-25 20:18:07,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:18:07,628 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:18:07,996 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_71b36192-ee71-4898-847c-cecf19850823/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i[329752,329765] [2021-11-25 20:18:08,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:18:08,166 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:18:08,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08 WrapperNode [2021-11-25 20:18:08,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:18:08,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:18:08,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:18:08,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:18:08,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,550 INFO L137 Inliner]: procedures = 380, calls = 3772, calls flagged for inlining = 111, calls inlined = 106, statements flattened = 6716 [2021-11-25 20:18:08,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:18:08,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:18:08,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:18:08,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:18:08,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:08,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:09,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:09,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:18:09,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:18:09,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:18:09,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:18:09,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (1/1) ... [2021-11-25 20:18:09,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:18:09,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:18:09,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:18:09,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:18:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_msg_structures_uv [2021-11-25 20:18:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_msg_structures_uv [2021-11-25 20:18:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 20:18:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 20:18:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_init_uv [2021-11-25 20:18:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_init_uv [2021-11-25 20:18:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-25 20:18:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_allow_hb_uv [2021-11-25 20:18:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_allow_hb_uv [2021-11-25 20:18:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions_uv [2021-11-25 20:18:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions_uv [2021-11-25 20:18:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_waitmsgs [2021-11-25 20:18:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_waitmsgs [2021-11-25 20:18:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_opencomplete_uv [2021-11-25 20:18:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_opencomplete_uv [2021-11-25 20:18:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:18:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:18:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-25 20:18:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-25 20:18:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_msg_structures_uv [2021-11-25 20:18:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_msg_structures_uv [2021-11-25 20:18:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_rsvd_page [2021-11-25 20:18:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_rsvd_page [2021-11-25 20:18:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_disengaged [2021-11-25 20:18:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_disengaged [2021-11-25 20:18:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_wakeup_channel_mgr [2021-11-25 20:18:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_wakeup_channel_mgr [2021-11-25 20:18:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-25 20:18:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-25 20:18:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 20:18:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 20:18:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-11-25 20:18:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-11-25 20:18:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:18:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:18:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kmalloc_cacheline_aligned [2021-11-25 20:18:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kmalloc_cacheline_aligned [2021-11-25 20:18:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_partitions_uv [2021-11-25 20:18:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_partitions_uv [2021-11-25 20:18:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_offline_heartbeat_uv [2021-11-25 20:18:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_offline_heartbeat_uv [2021-11-25 20:18:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_release_gru_mq_irq_uv [2021-11-25 20:18:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_release_gru_mq_irq_uv [2021-11-25 20:18:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-11-25 20:18:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-11-25 20:18:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:18:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_sender_uv [2021-11-25 20:18:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_sender_uv [2021-11-25 20:18:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_die_deactivate [2021-11-25 20:18:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_die_deactivate [2021-11-25 20:18:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_connect [2021-11-25 20:18:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_connect [2021-11-25 20:18:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 20:18:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 20:18:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-11-25 20:18:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-11-25 20:18:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_die_notifier [2021-11-25 20:18:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_die_notifier [2021-11-25 20:18:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_check_remote_hb [2021-11-25 20:18:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_check_remote_hb [2021-11-25 20:18:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:18:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:18:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 20:18:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 20:18:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_fifo_uv [2021-11-25 20:18:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_fifo_uv [2021-11-25 20:18:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-25 20:18:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-25 20:18:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_ref [2021-11-25 20:18:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_ref [2021-11-25 20:18:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_received_payload_uv [2021-11-25 20:18:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_received_payload_uv [2021-11-25 20:18:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 20:18:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 20:18:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_start [2021-11-25 20:18:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_start [2021-11-25 20:18:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_ref [2021-11-25 20:18:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_ref [2021-11-25 20:18:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_kthreads [2021-11-25 20:18:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_kthreads [2021-11-25 20:18:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-25 20:18:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-25 20:18:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_local_activate_IRQ_uv [2021-11-25 20:18:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_local_activate_IRQ_uv [2021-11-25 20:18:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 20:18:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 20:18:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_exit_uv [2021-11-25 20:18:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_exit_uv [2021-11-25 20:18:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:18:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:18:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_put_fifo_entry_uv [2021-11-25 20:18:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_put_fifo_entry_uv [2021-11-25 20:18:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure uv_blade_to_pnode [2021-11-25 20:18:09,425 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_blade_to_pnode [2021-11-25 20:18:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_activate_IRQ_rcvd_uv [2021-11-25 20:18:09,425 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_activate_IRQ_rcvd_uv [2021-11-25 20:18:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_uv [2021-11-25 20:18:09,426 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_uv [2021-11-25 20:18:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_payload_uv [2021-11-25 20:18:09,426 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_payload_uv [2021-11-25 20:18:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_free_msg_slot_uv [2021-11-25 20:18:09,426 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_free_msg_slot_uv [2021-11-25 20:18:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-25 20:18:09,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-25 20:18:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:18:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_engaged_uv [2021-11-25 20:18:09,428 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_engaged_uv [2021-11-25 20:18:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_openclose_chctl_flags [2021-11-25 20:18:09,428 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_openclose_chctl_flags [2021-11-25 20:18:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:18:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_msg_chctl_flags_uv [2021-11-25 20:18:09,429 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_msg_chctl_flags_uv [2021-11-25 20:18:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 20:18:09,432 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 20:18:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-25 20:18:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_deref [2021-11-25 20:18:09,433 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_deref [2021-11-25 20:18:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closereply_uv [2021-11-25 20:18:09,435 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closereply_uv [2021-11-25 20:18:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-25 20:18:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-25 20:18:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 20:18:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 20:18:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_connect_channel [2021-11-25 20:18:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_connect_channel [2021-11-25 20:18:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cache_remote_gru_mq_desc_uv [2021-11-25 20:18:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cache_remote_gru_mq_desc_uv [2021-11-25 20:18:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_ch_structures_uv [2021-11-25 20:18:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_ch_structures_uv [2021-11-25 20:18:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-11-25 20:18:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-11-25 20:18:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:18:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_activation_uv [2021-11-25 20:18:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_activation_uv [2021-11-25 20:18:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activating [2021-11-25 20:18:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activating [2021-11-25 20:18:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:18:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_callout [2021-11-25 20:18:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_callout [2021-11-25 20:18:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_deactivate_partition [2021-11-25 20:18:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_deactivate_partition [2021-11-25 20:18:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_disengaged_uv [2021-11-25 20:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_disengaged_uv [2021-11-25 20:18:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_channel [2021-11-25 20:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_channel [2021-11-25 20:18:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-25 20:18:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-25 20:18:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2021-11-25 20:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2021-11-25 20:18:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:18:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:18:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 20:18:09,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 20:18:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_channel_mgr [2021-11-25 20:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_channel_mgr [2021-11-25 20:18:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_save_remote_msgqueue_pa_uv [2021-11-25 20:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_save_remote_msgqueue_pa_uv [2021-11-25 20:18:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openrequest_uv [2021-11-25 20:18:09,447 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openrequest_uv [2021-11-25 20:18:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_exit_uv [2021-11-25 20:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_exit_uv [2021-11-25 20:18:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures [2021-11-25 20:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures [2021-11-25 20:18:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:18:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:18:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-25 20:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-25 20:18:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_any_partition_engaged_uv [2021-11-25 20:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_any_partition_engaged_uv [2021-11-25 20:18:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-25 20:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-25 20:18:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-11-25 20:18:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-11-25 20:18:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:18:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_rsvd_page_pa [2021-11-25 20:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_rsvd_page_pa [2021-11-25 20:18:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_partition [2021-11-25 20:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_partition [2021-11-25 20:18:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_part_uv [2021-11-25 20:18:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_part_uv [2021-11-25 20:18:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure uv_cpu_to_blade_id [2021-11-25 20:18:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_cpu_to_blade_id [2021-11-25 20:18:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_initiate_discovery [2021-11-25 20:18:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_initiate_discovery [2021-11-25 20:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:18:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_reactivation_uv [2021-11-25 20:18:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_reactivation_uv [2021-11-25 20:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:18:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_kthreads [2021-11-25 20:18:09,454 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_kthreads [2021-11-25 20:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_engaged_uv [2021-11-25 20:18:09,454 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_engaged_uv [2021-11-25 20:18:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 20:18:09,454 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 20:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_gru_msg [2021-11-25 20:18:09,455 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_gru_msg [2021-11-25 20:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:18:09,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_gru_mq_uv [2021-11-25 20:18:09,455 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_gru_mq_uv [2021-11-25 20:18:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2021-11-25 20:18:09,456 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2021-11-25 20:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_deref [2021-11-25 20:18:09,456 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_deref [2021-11-25 20:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closerequest_uv [2021-11-25 20:18:09,456 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closerequest_uv [2021-11-25 20:18:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_all_hbs_uv [2021-11-25 20:18:09,457 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_all_hbs_uv [2021-11-25 20:18:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_timeout_partition_disengage [2021-11-25 20:18:09,457 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_timeout_partition_disengage [2021-11-25 20:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_of_node [2021-11-25 20:18:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_of_node [2021-11-25 20:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_mq_node [2021-11-25 20:18:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_mq_node [2021-11-25 20:18:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_destroy_gru_mq_uv [2021-11-25 20:18:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_destroy_gru_mq_uv [2021-11-25 20:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_discovery [2021-11-25 20:18:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_discovery [2021-11-25 20:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_partition_rsvd_page_pa_uv [2021-11-25 20:18:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_partition_rsvd_page_pa_uv [2021-11-25 20:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:18:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:18:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_ch_uv [2021-11-25 20:18:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_ch_uv [2021-11-25 20:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_increment_heartbeat_uv [2021-11-25 20:18:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_increment_heartbeat_uv [2021-11-25 20:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2021-11-25 20:18:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2021-11-25 20:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:18:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_sent_chctl_flags [2021-11-25 20:18:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_sent_chctl_flags [2021-11-25 20:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_heartbeat_uv [2021-11-25 20:18:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_heartbeat_uv [2021-11-25 20:18:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:18:09,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:18:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions [2021-11-25 20:18:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions [2021-11-25 20:18:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_disconnect [2021-11-25 20:18:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_disconnect [2021-11-25 20:18:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_do_exit [2021-11-25 20:18:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_do_exit [2021-11-25 20:18:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_online_heartbeat_uv [2021-11-25 20:18:09,467 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_online_heartbeat_uv [2021-11-25 20:18:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_fifo_entry_uv [2021-11-25 20:18:09,468 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_fifo_entry_uv [2021-11-25 20:18:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_xpc_registration [2021-11-25 20:18:09,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_xpc_registration [2021-11-25 20:18:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_hb_uv [2021-11-25 20:18:09,469 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_hb_uv [2021-11-25 20:18:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:18:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openreply_uv [2021-11-25 20:18:09,469 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openreply_uv [2021-11-25 20:18:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_checker [2021-11-25 20:18:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_checker [2021-11-25 20:18:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-11-25 20:18:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-11-25 20:18:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-25 20:18:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-25 20:18:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures_uv [2021-11-25 20:18:09,471 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures_uv [2021-11-25 20:18:09,471 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_rsvd_page_uv [2021-11-25 20:18:09,471 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_rsvd_page_uv [2021-11-25 20:18:09,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:18:09,471 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-25 20:18:09,471 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-25 20:18:09,471 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 20:18:09,472 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 20:18:09,472 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_deactivation_uv [2021-11-25 20:18:09,472 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_deactivation_uv [2021-11-25 20:18:09,472 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_chctl_all_flags_uv [2021-11-25 20:18:09,472 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_chctl_all_flags_uv [2021-11-25 20:18:09,472 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_gru_mq_watchlist_free_uv [2021-11-25 20:18:09,472 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_gru_mq_watchlist_free_uv [2021-11-25 20:18:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_going_down [2021-11-25 20:18:09,473 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_going_down [2021-11-25 20:18:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-11-25 20:18:09,473 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-11-25 20:18:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:18:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:18:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:18:09,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:18:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-25 20:18:09,474 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-25 20:18:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:18:09,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:18:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 20:18:09,474 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 20:18:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 20:18:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 20:18:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sysctl_table [2021-11-25 20:18:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sysctl_table [2021-11-25 20:18:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure uv_gpa [2021-11-25 20:18:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_gpa [2021-11-25 20:18:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 20:18:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 20:18:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 20:18:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 20:18:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_deliverable_payload_uv [2021-11-25 20:18:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_deliverable_payload_uv [2021-11-25 20:18:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_senders_of_disconnect_uv [2021-11-25 20:18:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_senders_of_disconnect_uv [2021-11-25 20:18:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-25 20:18:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-25 20:18:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_make_first_contact_uv [2021-11-25 20:18:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_make_first_contact_uv [2021-11-25 20:18:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_n_of_deliverable_payloads_uv [2021-11-25 20:18:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_n_of_deliverable_payloads_uv [2021-11-25 20:18:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 20:18:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 20:18:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_rp [2021-11-25 20:18:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_rp [2021-11-25 20:18:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-25 20:18:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-25 20:18:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_beater [2021-11-25 20:18:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_beater [2021-11-25 20:18:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure is_uv_system [2021-11-25 20:18:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure is_uv_system [2021-11-25 20:18:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:18:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:18:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-25 20:18:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-25 20:18:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-25 20:18:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-25 20:18:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:18:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 20:18:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 20:18:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-25 20:18:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-25 20:18:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:18:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:18:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_assume_partition_disengaged_uv [2021-11-25 20:18:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_assume_partition_disengaged_uv [2021-11-25 20:18:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 20:18:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 20:18:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cancel_partition_deactivation_request_uv [2021-11-25 20:18:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cancel_partition_deactivation_request_uv [2021-11-25 20:18:10,460 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:18:10,469 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:18:22,241 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:18:23,859 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:18:23,859 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:18:23,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:18:23 BoogieIcfgContainer [2021-11-25 20:18:23,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:18:23,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:18:23,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:18:23,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:18:23,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:18:04" (1/3) ... [2021-11-25 20:18:23,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaea44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:18:23, skipping insertion in model container [2021-11-25 20:18:23,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:18:08" (2/3) ... [2021-11-25 20:18:23,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaea44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:18:23, skipping insertion in model container [2021-11-25 20:18:23,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:18:23" (3/3) ... [2021-11-25 20:18:23,872 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-11-25 20:18:23,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:18:23,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:18:24,007 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:18:24,013 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:18:24,013 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:18:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 2290 states, 1382 states have (on average 1.3596237337192474) internal successors, (1879), 1492 states have internal predecessors, (1879), 746 states have call successors, (746), 160 states have call predecessors, (746), 160 states have return successors, (746), 711 states have call predecessors, (746), 746 states have call successors, (746) [2021-11-25 20:18:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 20:18:24,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:24,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:24,087 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:24,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:24,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1373141069, now seen corresponding path program 1 times [2021-11-25 20:18:24,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:24,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884572098] [2021-11-25 20:18:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:24,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:24,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:24,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884572098] [2021-11-25 20:18:24,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884572098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:24,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:24,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:18:24,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086623628] [2021-11-25 20:18:24,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:24,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:24,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:24,785 INFO L87 Difference]: Start difference. First operand has 2290 states, 1382 states have (on average 1.3596237337192474) internal successors, (1879), 1492 states have internal predecessors, (1879), 746 states have call successors, (746), 160 states have call predecessors, (746), 160 states have return successors, (746), 711 states have call predecessors, (746), 746 states have call successors, (746) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:18:27,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:31,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:31,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:31,673 INFO L93 Difference]: Finished difference Result 6471 states and 9767 transitions. [2021-11-25 20:18:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 20:18:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:31,732 INFO L225 Difference]: With dead ends: 6471 [2021-11-25 20:18:31,733 INFO L226 Difference]: Without dead ends: 4162 [2021-11-25 20:18:31,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:31,766 INFO L933 BasicCegarLoop]: 4282 mSDtfsCounter, 2696 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 7097 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:31,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2697 Valid, 7097 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 953 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 20:18:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4162 states. [2021-11-25 20:18:32,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4162 to 4140. [2021-11-25 20:18:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 2460 states have (on average 1.3321138211382113) internal successors, (3277), 2664 states have internal predecessors, (3277), 1366 states have call successors, (1366), 314 states have call predecessors, (1366), 313 states have return successors, (1357), 1284 states have call predecessors, (1357), 1357 states have call successors, (1357) [2021-11-25 20:18:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 6000 transitions. [2021-11-25 20:18:32,210 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 6000 transitions. Word has length 18 [2021-11-25 20:18:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:32,211 INFO L470 AbstractCegarLoop]: Abstraction has 4140 states and 6000 transitions. [2021-11-25 20:18:32,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:18:32,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 6000 transitions. [2021-11-25 20:18:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:18:32,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:32,221 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] [2021-11-25 20:18:32,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:18:32,222 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash 50824458, now seen corresponding path program 1 times [2021-11-25 20:18:32,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:32,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286434899] [2021-11-25 20:18:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:32,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:32,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:32,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286434899] [2021-11-25 20:18:32,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286434899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:32,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:32,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:32,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496617147] [2021-11-25 20:18:32,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:32,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:32,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:32,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:32,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:32,682 INFO L87 Difference]: Start difference. First operand 4140 states and 6000 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:33,828 INFO L93 Difference]: Finished difference Result 4226 states and 6078 transitions. [2021-11-25 20:18:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-25 20:18:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:33,864 INFO L225 Difference]: With dead ends: 4226 [2021-11-25 20:18:33,865 INFO L226 Difference]: Without dead ends: 4222 [2021-11-25 20:18:33,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:33,870 INFO L933 BasicCegarLoop]: 3057 mSDtfsCounter, 3261 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:33,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3261 Valid, 3138 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:18:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2021-11-25 20:18:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4220. [2021-11-25 20:18:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4220 states, 2506 states have (on average 1.3272146847565842) internal successors, (3326), 2708 states have internal predecessors, (3326), 1376 states have call successors, (1376), 338 states have call predecessors, (1376), 337 states have return successors, (1369), 1296 states have call predecessors, (1369), 1369 states have call successors, (1369) [2021-11-25 20:18:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4220 states to 4220 states and 6071 transitions. [2021-11-25 20:18:34,170 INFO L78 Accepts]: Start accepts. Automaton has 4220 states and 6071 transitions. Word has length 20 [2021-11-25 20:18:34,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:34,173 INFO L470 AbstractCegarLoop]: Abstraction has 4220 states and 6071 transitions. [2021-11-25 20:18:34,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4220 states and 6071 transitions. [2021-11-25 20:18:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 20:18:34,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:34,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:34,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:18:34,177 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1574154877, now seen corresponding path program 1 times [2021-11-25 20:18:34,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:34,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541900015] [2021-11-25 20:18:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:34,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:34,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:34,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541900015] [2021-11-25 20:18:34,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541900015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:34,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:34,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:34,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505496885] [2021-11-25 20:18:34,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:34,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:34,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:34,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:34,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:34,469 INFO L87 Difference]: Start difference. First operand 4220 states and 6071 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:35,794 INFO L93 Difference]: Finished difference Result 4222 states and 6072 transitions. [2021-11-25 20:18:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:35,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-11-25 20:18:35,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:35,830 INFO L225 Difference]: With dead ends: 4222 [2021-11-25 20:18:35,830 INFO L226 Difference]: Without dead ends: 4219 [2021-11-25 20:18:35,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:35,835 INFO L933 BasicCegarLoop]: 3035 mSDtfsCounter, 3320 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3320 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:35,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3320 Valid, 3035 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 20:18:35,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2021-11-25 20:18:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 4219. [2021-11-25 20:18:36,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4219 states, 2506 states have (on average 1.3268156424581006) internal successors, (3325), 2707 states have internal predecessors, (3325), 1375 states have call successors, (1375), 338 states have call predecessors, (1375), 337 states have return successors, (1369), 1296 states have call predecessors, (1369), 1369 states have call successors, (1369) [2021-11-25 20:18:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 6069 transitions. [2021-11-25 20:18:36,172 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 6069 transitions. Word has length 21 [2021-11-25 20:18:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:36,173 INFO L470 AbstractCegarLoop]: Abstraction has 4219 states and 6069 transitions. [2021-11-25 20:18:36,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 6069 transitions. [2021-11-25 20:18:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 20:18:36,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:36,176 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] [2021-11-25 20:18:36,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:18:36,176 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:36,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1552762477, now seen corresponding path program 1 times [2021-11-25 20:18:36,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:36,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003528653] [2021-11-25 20:18:36,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:36,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:36,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:36,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003528653] [2021-11-25 20:18:36,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003528653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:36,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:36,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:36,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152541571] [2021-11-25 20:18:36,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:36,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:36,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:36,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:36,465 INFO L87 Difference]: Start difference. First operand 4219 states and 6069 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:38,497 INFO L93 Difference]: Finished difference Result 4221 states and 6070 transitions. [2021-11-25 20:18:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-11-25 20:18:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:38,530 INFO L225 Difference]: With dead ends: 4221 [2021-11-25 20:18:38,531 INFO L226 Difference]: Without dead ends: 4218 [2021-11-25 20:18:38,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:38,535 INFO L933 BasicCegarLoop]: 3033 mSDtfsCounter, 3317 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:38,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3317 Valid, 3033 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 20:18:38,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4218 states. [2021-11-25 20:18:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4218 to 4218. [2021-11-25 20:18:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 2506 states have (on average 1.326416600159617) internal successors, (3324), 2706 states have internal predecessors, (3324), 1374 states have call successors, (1374), 338 states have call predecessors, (1374), 337 states have return successors, (1369), 1296 states have call predecessors, (1369), 1369 states have call successors, (1369) [2021-11-25 20:18:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 6067 transitions. [2021-11-25 20:18:38,787 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 6067 transitions. Word has length 22 [2021-11-25 20:18:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:38,788 INFO L470 AbstractCegarLoop]: Abstraction has 4218 states and 6067 transitions. [2021-11-25 20:18:38,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 6067 transitions. [2021-11-25 20:18:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 20:18:38,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:38,790 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] [2021-11-25 20:18:38,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:18:38,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:38,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:38,791 INFO L85 PathProgramCache]: Analyzing trace with hash 889602944, now seen corresponding path program 1 times [2021-11-25 20:18:38,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:38,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142314631] [2021-11-25 20:18:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:38,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:39,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:39,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142314631] [2021-11-25 20:18:39,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142314631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:39,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:39,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:39,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694697007] [2021-11-25 20:18:39,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:39,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:39,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:39,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:39,074 INFO L87 Difference]: Start difference. First operand 4218 states and 6067 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:41,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:43,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:43,185 INFO L93 Difference]: Finished difference Result 8433 states and 12129 transitions. [2021-11-25 20:18:43,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:43,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-25 20:18:43,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:43,277 INFO L225 Difference]: With dead ends: 8433 [2021-11-25 20:18:43,277 INFO L226 Difference]: Without dead ends: 8430 [2021-11-25 20:18:43,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:43,285 INFO L933 BasicCegarLoop]: 3774 mSDtfsCounter, 3310 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3310 SdHoareTripleChecker+Valid, 6804 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:43,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3310 Valid, 6804 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 20:18:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2021-11-25 20:18:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 8425. [2021-11-25 20:18:43,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8425 states, 5008 states have (on average 1.3264776357827477) internal successors, (6643), 5404 states have internal predecessors, (6643), 2742 states have call successors, (2742), 675 states have call predecessors, (2742), 674 states have return successors, (2737), 2591 states have call predecessors, (2737), 2737 states have call successors, (2737) [2021-11-25 20:18:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8425 states to 8425 states and 12122 transitions. [2021-11-25 20:18:43,786 INFO L78 Accepts]: Start accepts. Automaton has 8425 states and 12122 transitions. Word has length 23 [2021-11-25 20:18:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:43,787 INFO L470 AbstractCegarLoop]: Abstraction has 8425 states and 12122 transitions. [2021-11-25 20:18:43,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:43,787 INFO L276 IsEmpty]: Start isEmpty. Operand 8425 states and 12122 transitions. [2021-11-25 20:18:43,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:18:43,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:43,788 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] [2021-11-25 20:18:43,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:18:43,789 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:43,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1806498768, now seen corresponding path program 1 times [2021-11-25 20:18:43,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:43,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970539910] [2021-11-25 20:18:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:43,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:44,012 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:44,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970539910] [2021-11-25 20:18:44,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970539910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:44,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:44,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:44,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686488614] [2021-11-25 20:18:44,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:44,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:44,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:44,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:44,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:44,014 INFO L87 Difference]: Start difference. First operand 8425 states and 12122 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:46,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:48,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:48,203 INFO L93 Difference]: Finished difference Result 16697 states and 24338 transitions. [2021-11-25 20:18:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:48,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-11-25 20:18:48,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:48,297 INFO L225 Difference]: With dead ends: 16697 [2021-11-25 20:18:48,297 INFO L226 Difference]: Without dead ends: 16686 [2021-11-25 20:18:48,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:48,315 INFO L933 BasicCegarLoop]: 3880 mSDtfsCounter, 3318 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 6925 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:48,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3318 Valid, 6925 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 608 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 20:18:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16686 states. [2021-11-25 20:18:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16686 to 16682. [2021-11-25 20:18:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16682 states, 9923 states have (on average 1.3265141590244887) internal successors, (13163), 10707 states have internal predecessors, (13163), 5414 states have call successors, (5414), 1345 states have call predecessors, (5414), 1344 states have return successors, (5738), 5121 states have call predecessors, (5738), 5409 states have call successors, (5738) [2021-11-25 20:18:49,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16682 states to 16682 states and 24315 transitions. [2021-11-25 20:18:49,441 INFO L78 Accepts]: Start accepts. Automaton has 16682 states and 24315 transitions. Word has length 24 [2021-11-25 20:18:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:49,442 INFO L470 AbstractCegarLoop]: Abstraction has 16682 states and 24315 transitions. [2021-11-25 20:18:49,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:18:49,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16682 states and 24315 transitions. [2021-11-25 20:18:49,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 20:18:49,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:49,454 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] [2021-11-25 20:18:49,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:18:49,454 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1322373021, now seen corresponding path program 1 times [2021-11-25 20:18:49,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:49,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920837320] [2021-11-25 20:18:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:49,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:18:49,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920837320] [2021-11-25 20:18:49,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920837320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:49,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:49,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:49,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240957759] [2021-11-25 20:18:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:49,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:49,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:49,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:49,685 INFO L87 Difference]: Start difference. First operand 16682 states and 24315 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-25 20:18:52,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:55,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:56,449 INFO L93 Difference]: Finished difference Result 49741 states and 72459 transitions. [2021-11-25 20:18:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-11-25 20:18:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:56,634 INFO L225 Difference]: With dead ends: 49741 [2021-11-25 20:18:56,634 INFO L226 Difference]: Without dead ends: 33060 [2021-11-25 20:18:56,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:56,755 INFO L933 BasicCegarLoop]: 4760 mSDtfsCounter, 3261 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 7790 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:56,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3261 Valid, 7790 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 707 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2021-11-25 20:18:56,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33060 states. [2021-11-25 20:18:58,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33060 to 33022. [2021-11-25 20:18:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33022 states, 19591 states have (on average 1.324434689398193) internal successors, (25947), 21139 states have internal predecessors, (25947), 10750 states have call successors, (10750), 2681 states have call predecessors, (10750), 2680 states have return successors, (11402), 10157 states have call predecessors, (11402), 10745 states have call successors, (11402) [2021-11-25 20:18:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33022 states to 33022 states and 48099 transitions. [2021-11-25 20:18:58,988 INFO L78 Accepts]: Start accepts. Automaton has 33022 states and 48099 transitions. Word has length 56 [2021-11-25 20:18:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:58,990 INFO L470 AbstractCegarLoop]: Abstraction has 33022 states and 48099 transitions. [2021-11-25 20:18:58,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-25 20:18:58,990 INFO L276 IsEmpty]: Start isEmpty. Operand 33022 states and 48099 transitions. [2021-11-25 20:18:58,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-25 20:18:58,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:58,998 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:18:58,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:18:58,999 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:59,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:59,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1370954878, now seen corresponding path program 1 times [2021-11-25 20:18:59,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:59,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101485561] [2021-11-25 20:18:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:59,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:18:59,325 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:59,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101485561] [2021-11-25 20:18:59,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101485561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:59,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:59,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:59,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726307609] [2021-11-25 20:18:59,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:59,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:59,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:59,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:59,327 INFO L87 Difference]: Start difference. First operand 33022 states and 48099 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 20:19:03,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:04,103 INFO L93 Difference]: Finished difference Result 33024 states and 48100 transitions. [2021-11-25 20:19:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:04,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2021-11-25 20:19:04,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:04,283 INFO L225 Difference]: With dead ends: 33024 [2021-11-25 20:19:04,284 INFO L226 Difference]: Without dead ends: 33021 [2021-11-25 20:19:04,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:04,301 INFO L933 BasicCegarLoop]: 3039 mSDtfsCounter, 84 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6012 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:04,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 6012 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 607 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 20:19:04,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33021 states. [2021-11-25 20:19:06,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33021 to 33021. [2021-11-25 20:19:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33021 states, 19591 states have (on average 1.3236179878515646) internal successors, (25931), 21138 states have internal predecessors, (25931), 10749 states have call successors, (10749), 2681 states have call predecessors, (10749), 2680 states have return successors, (11402), 10157 states have call predecessors, (11402), 10745 states have call successors, (11402) [2021-11-25 20:19:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33021 states to 33021 states and 48082 transitions. [2021-11-25 20:19:06,344 INFO L78 Accepts]: Start accepts. Automaton has 33021 states and 48082 transitions. Word has length 55 [2021-11-25 20:19:06,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:06,344 INFO L470 AbstractCegarLoop]: Abstraction has 33021 states and 48082 transitions. [2021-11-25 20:19:06,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 20:19:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 33021 states and 48082 transitions. [2021-11-25 20:19:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-25 20:19:06,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:06,397 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:06,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:19:06,398 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:06,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash 998626143, now seen corresponding path program 1 times [2021-11-25 20:19:06,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:06,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633554773] [2021-11-25 20:19:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:06,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:19:06,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:06,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633554773] [2021-11-25 20:19:06,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633554773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:06,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:06,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:06,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431392300] [2021-11-25 20:19:06,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:06,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:06,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:06,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:06,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:06,719 INFO L87 Difference]: Start difference. First operand 33021 states and 48082 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:19:10,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:11,515 INFO L93 Difference]: Finished difference Result 68766 states and 100884 transitions. [2021-11-25 20:19:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 131 [2021-11-25 20:19:11,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:11,951 INFO L225 Difference]: With dead ends: 68766 [2021-11-25 20:19:11,952 INFO L226 Difference]: Without dead ends: 35746 [2021-11-25 20:19:12,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:12,070 INFO L933 BasicCegarLoop]: 3183 mSDtfsCounter, 386 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 6208 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:12,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 6208 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 615 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 20:19:12,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35746 states. [2021-11-25 20:19:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35746 to 33025. [2021-11-25 20:19:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33025 states, 19595 states have (on average 1.3235519265118654) internal successors, (25935), 21142 states have internal predecessors, (25935), 10749 states have call successors, (10749), 2681 states have call predecessors, (10749), 2680 states have return successors, (11402), 10157 states have call predecessors, (11402), 10745 states have call successors, (11402) [2021-11-25 20:19:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33025 states to 33025 states and 48086 transitions. [2021-11-25 20:19:14,049 INFO L78 Accepts]: Start accepts. Automaton has 33025 states and 48086 transitions. Word has length 131 [2021-11-25 20:19:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:14,049 INFO L470 AbstractCegarLoop]: Abstraction has 33025 states and 48086 transitions. [2021-11-25 20:19:14,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:19:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 33025 states and 48086 transitions. [2021-11-25 20:19:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-25 20:19:14,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:14,119 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:14,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:19:14,119 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:14,120 INFO L85 PathProgramCache]: Analyzing trace with hash -719743094, now seen corresponding path program 1 times [2021-11-25 20:19:14,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:14,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398294710] [2021-11-25 20:19:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:14,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:19:14,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:14,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398294710] [2021-11-25 20:19:14,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398294710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:14,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:14,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:19:14,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272401690] [2021-11-25 20:19:14,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:14,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:19:14,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:19:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:19:14,543 INFO L87 Difference]: Start difference. First operand 33025 states and 48086 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:19:18,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:20,133 INFO L93 Difference]: Finished difference Result 74620 states and 111050 transitions. [2021-11-25 20:19:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:19:20,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 134 [2021-11-25 20:19:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:20,320 INFO L225 Difference]: With dead ends: 74620 [2021-11-25 20:19:20,321 INFO L226 Difference]: Without dead ends: 41596 [2021-11-25 20:19:20,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:20,656 INFO L933 BasicCegarLoop]: 3848 mSDtfsCounter, 1185 mSDsluCounter, 7477 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 178 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 10707 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:20,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 10707 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 965 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-25 20:19:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41596 states. [2021-11-25 20:19:22,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41596 to 33057. [2021-11-25 20:19:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33057 states, 19627 states have (on average 1.3230244051561624) internal successors, (25967), 21174 states have internal predecessors, (25967), 10749 states have call successors, (10749), 2681 states have call predecessors, (10749), 2680 states have return successors, (11402), 10157 states have call predecessors, (11402), 10745 states have call successors, (11402) [2021-11-25 20:19:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33057 states to 33057 states and 48118 transitions. [2021-11-25 20:19:22,546 INFO L78 Accepts]: Start accepts. Automaton has 33057 states and 48118 transitions. Word has length 134 [2021-11-25 20:19:22,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:22,547 INFO L470 AbstractCegarLoop]: Abstraction has 33057 states and 48118 transitions. [2021-11-25 20:19:22,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:19:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 33057 states and 48118 transitions. [2021-11-25 20:19:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-25 20:19:22,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:22,602 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:22,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:19:22,602 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:22,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:22,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1528411140, now seen corresponding path program 1 times [2021-11-25 20:19:22,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:22,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80661783] [2021-11-25 20:19:22,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:22,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:19:23,213 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:23,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80661783] [2021-11-25 20:19:23,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80661783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:23,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:23,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:23,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57332959] [2021-11-25 20:19:23,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:23,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:23,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:23,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:23,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:23,216 INFO L87 Difference]: Start difference. First operand 33057 states and 48118 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:19:26,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:28,047 INFO L93 Difference]: Finished difference Result 66193 states and 96547 transitions. [2021-11-25 20:19:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:28,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 145 [2021-11-25 20:19:28,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:28,235 INFO L225 Difference]: With dead ends: 66193 [2021-11-25 20:19:28,235 INFO L226 Difference]: Without dead ends: 33137 [2021-11-25 20:19:28,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:28,534 INFO L933 BasicCegarLoop]: 3033 mSDtfsCounter, 2 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6063 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:28,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6063 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 600 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 20:19:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33137 states. [2021-11-25 20:19:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33137 to 33073. [2021-11-25 20:19:29,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33073 states, 19643 states have (on average 1.3227612890088072) internal successors, (25983), 21190 states have internal predecessors, (25983), 10749 states have call successors, (10749), 2681 states have call predecessors, (10749), 2680 states have return successors, (11402), 10157 states have call predecessors, (11402), 10745 states have call successors, (11402) [2021-11-25 20:19:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33073 states to 33073 states and 48134 transitions. [2021-11-25 20:19:30,110 INFO L78 Accepts]: Start accepts. Automaton has 33073 states and 48134 transitions. Word has length 145 [2021-11-25 20:19:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:30,110 INFO L470 AbstractCegarLoop]: Abstraction has 33073 states and 48134 transitions. [2021-11-25 20:19:30,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:19:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 33073 states and 48134 transitions. [2021-11-25 20:19:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-25 20:19:30,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:30,136 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:30,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:19:30,137 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:30,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1716147821, now seen corresponding path program 1 times [2021-11-25 20:19:30,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:30,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426535980] [2021-11-25 20:19:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:30,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:19:30,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:30,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426535980] [2021-11-25 20:19:30,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426535980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:30,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:30,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:30,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021166945] [2021-11-25 20:19:30,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:30,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:30,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:30,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:30,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:30,450 INFO L87 Difference]: Start difference. First operand 33073 states and 48134 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:19:34,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:35,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:35,531 INFO L93 Difference]: Finished difference Result 66209 states and 96563 transitions. [2021-11-25 20:19:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 146 [2021-11-25 20:19:35,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:35,658 INFO L225 Difference]: With dead ends: 66209 [2021-11-25 20:19:35,658 INFO L226 Difference]: Without dead ends: 33137 [2021-11-25 20:19:35,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:35,751 INFO L933 BasicCegarLoop]: 3031 mSDtfsCounter, 3 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:35,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6061 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 600 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 20:19:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33137 states. [2021-11-25 20:19:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33137 to 33089. [2021-11-25 20:19:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33089 states, 19659 states have (on average 1.3224986011496007) internal successors, (25999), 21206 states have internal predecessors, (25999), 10749 states have call successors, (10749), 2681 states have call predecessors, (10749), 2680 states have return successors, (11402), 10157 states have call predecessors, (11402), 10745 states have call successors, (11402) [2021-11-25 20:19:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33089 states to 33089 states and 48150 transitions. [2021-11-25 20:19:37,353 INFO L78 Accepts]: Start accepts. Automaton has 33089 states and 48150 transitions. Word has length 146 [2021-11-25 20:19:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:37,354 INFO L470 AbstractCegarLoop]: Abstraction has 33089 states and 48150 transitions. [2021-11-25 20:19:37,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:19:37,354 INFO L276 IsEmpty]: Start isEmpty. Operand 33089 states and 48150 transitions. [2021-11-25 20:19:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-25 20:19:37,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:37,384 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:37,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:19:37,385 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1384205792, now seen corresponding path program 1 times [2021-11-25 20:19:37,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:37,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888623943] [2021-11-25 20:19:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:37,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:19:37,735 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:37,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888623943] [2021-11-25 20:19:37,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888623943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:37,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:37,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 20:19:37,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49025168] [2021-11-25 20:19:37,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:37,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:19:37,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:37,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:19:37,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:19:37,738 INFO L87 Difference]: Start difference. First operand 33089 states and 48150 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:19:44,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:46,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:47,874 INFO L93 Difference]: Finished difference Result 72019 states and 106429 transitions. [2021-11-25 20:19:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:19:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 147 [2021-11-25 20:19:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:48,006 INFO L225 Difference]: With dead ends: 72019 [2021-11-25 20:19:48,006 INFO L226 Difference]: Without dead ends: 38931 [2021-11-25 20:19:48,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:19:48,090 INFO L933 BasicCegarLoop]: 3688 mSDtfsCounter, 1180 mSDsluCounter, 27325 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 180 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 28828 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:48,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 28828 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2566 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-25 20:19:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38931 states. [2021-11-25 20:19:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38931 to 33185. [2021-11-25 20:19:49,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33185 states, 19723 states have (on average 1.3214521117477058) internal successors, (26063), 21270 states have internal predecessors, (26063), 10749 states have call successors, (10749), 2681 states have call predecessors, (10749), 2712 states have return successors, (11474), 10189 states have call predecessors, (11474), 10745 states have call successors, (11474) [2021-11-25 20:19:49,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33185 states to 33185 states and 48286 transitions. [2021-11-25 20:19:49,577 INFO L78 Accepts]: Start accepts. Automaton has 33185 states and 48286 transitions. Word has length 147 [2021-11-25 20:19:49,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:49,578 INFO L470 AbstractCegarLoop]: Abstraction has 33185 states and 48286 transitions. [2021-11-25 20:19:49,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:19:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 33185 states and 48286 transitions. [2021-11-25 20:19:49,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-25 20:19:49,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:49,608 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:49,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:19:49,609 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1072782022, now seen corresponding path program 1 times [2021-11-25 20:19:49,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:49,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396694832] [2021-11-25 20:19:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:49,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:19:50,444 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:50,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396694832] [2021-11-25 20:19:50,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396694832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:50,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:50,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:19:50,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249803001] [2021-11-25 20:19:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:50,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:19:50,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:50,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:19:50,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:19:50,447 INFO L87 Difference]: Start difference. First operand 33185 states and 48286 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-25 20:19:52,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:54,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:04,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:06,275 INFO L93 Difference]: Finished difference Result 71237 states and 103881 transitions. [2021-11-25 20:20:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:20:06,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 148 [2021-11-25 20:20:06,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:06,406 INFO L225 Difference]: With dead ends: 71237 [2021-11-25 20:20:06,406 INFO L226 Difference]: Without dead ends: 38053 [2021-11-25 20:20:06,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:20:06,492 INFO L933 BasicCegarLoop]: 4302 mSDtfsCounter, 2123 mSDsluCounter, 15497 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 18509 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:06,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2123 Valid, 18509 Invalid, 3833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3822 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2021-11-25 20:20:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38053 states. [2021-11-25 20:20:07,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38053 to 37297. [2021-11-25 20:20:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37297 states, 22318 states have (on average 1.3372165964692178) internal successors, (29844), 24160 states have internal predecessors, (29844), 11828 states have call successors, (11828), 3213 states have call predecessors, (11828), 3150 states have return successors, (12831), 10944 states have call predecessors, (12831), 11824 states have call successors, (12831) [2021-11-25 20:20:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37297 states to 37297 states and 54503 transitions. [2021-11-25 20:20:08,087 INFO L78 Accepts]: Start accepts. Automaton has 37297 states and 54503 transitions. Word has length 148 [2021-11-25 20:20:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:08,088 INFO L470 AbstractCegarLoop]: Abstraction has 37297 states and 54503 transitions. [2021-11-25 20:20:08,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-25 20:20:08,088 INFO L276 IsEmpty]: Start isEmpty. Operand 37297 states and 54503 transitions. [2021-11-25 20:20:08,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-25 20:20:08,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:08,143 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:08,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:20:08,143 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:08,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:08,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1141582247, now seen corresponding path program 1 times [2021-11-25 20:20:08,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789970673] [2021-11-25 20:20:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:08,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:20:08,521 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:08,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789970673] [2021-11-25 20:20:08,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789970673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:08,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:08,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:08,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831335984] [2021-11-25 20:20:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:08,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:08,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:08,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:08,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:08,524 INFO L87 Difference]: Start difference. First operand 37297 states and 54503 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:20:10,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:10,546 INFO L93 Difference]: Finished difference Result 37299 states and 54504 transitions. [2021-11-25 20:20:10,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:10,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 154 [2021-11-25 20:20:10,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:10,662 INFO L225 Difference]: With dead ends: 37299 [2021-11-25 20:20:10,662 INFO L226 Difference]: Without dead ends: 37290 [2021-11-25 20:20:10,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:10,677 INFO L933 BasicCegarLoop]: 3029 mSDtfsCounter, 3274 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3274 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:10,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3274 Valid, 3029 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:20:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37290 states. [2021-11-25 20:20:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37290 to 37284. [2021-11-25 20:20:12,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37284 states, 22306 states have (on average 1.3373083475298126) internal successors, (29830), 24149 states have internal predecessors, (29830), 11827 states have call successors, (11827), 3213 states have call predecessors, (11827), 3150 states have return successors, (12823), 10942 states have call predecessors, (12823), 11824 states have call successors, (12823) [2021-11-25 20:20:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37284 states to 37284 states and 54480 transitions. [2021-11-25 20:20:12,213 INFO L78 Accepts]: Start accepts. Automaton has 37284 states and 54480 transitions. Word has length 154 [2021-11-25 20:20:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:12,213 INFO L470 AbstractCegarLoop]: Abstraction has 37284 states and 54480 transitions. [2021-11-25 20:20:12,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:20:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 37284 states and 54480 transitions. [2021-11-25 20:20:12,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-25 20:20:12,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:12,263 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:12,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:20:12,264 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1030700009, now seen corresponding path program 1 times [2021-11-25 20:20:12,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:12,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036864776] [2021-11-25 20:20:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:12,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:20:12,674 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:12,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036864776] [2021-11-25 20:20:12,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036864776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:12,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:12,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:20:12,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428099581] [2021-11-25 20:20:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:12,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:20:12,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:12,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:20:12,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:20:12,678 INFO L87 Difference]: Start difference. First operand 37284 states and 54480 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 20:20:18,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:26,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:28,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:28,455 INFO L93 Difference]: Finished difference Result 52670 states and 78446 transitions. [2021-11-25 20:20:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:20:28,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 155 [2021-11-25 20:20:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:28,797 INFO L225 Difference]: With dead ends: 52670 [2021-11-25 20:20:28,798 INFO L226 Difference]: Without dead ends: 52659 [2021-11-25 20:20:28,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:28,814 INFO L933 BasicCegarLoop]: 2737 mSDtfsCounter, 5234 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 5122 mSolverCounterSat, 3390 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6057 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 8514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3390 IncrementalHoareTripleChecker+Valid, 5122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:28,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6057 Valid, 5165 Invalid, 8514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3390 Valid, 5122 Invalid, 2 Unknown, 0 Unchecked, 14.2s Time] [2021-11-25 20:20:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52659 states. [2021-11-25 20:20:30,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52659 to 52623. [2021-11-25 20:20:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52623 states, 31390 states have (on average 1.3317617075501753) internal successors, (41804), 33974 states have internal predecessors, (41804), 17110 states have call successors, (17110), 3873 states have call predecessors, (17110), 4122 states have return successors, (19453), 16291 states have call predecessors, (19453), 17107 states have call successors, (19453) [2021-11-25 20:20:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52623 states to 52623 states and 78367 transitions. [2021-11-25 20:20:31,258 INFO L78 Accepts]: Start accepts. Automaton has 52623 states and 78367 transitions. Word has length 155 [2021-11-25 20:20:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:31,259 INFO L470 AbstractCegarLoop]: Abstraction has 52623 states and 78367 transitions. [2021-11-25 20:20:31,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 20:20:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 52623 states and 78367 transitions. [2021-11-25 20:20:31,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-25 20:20:31,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:31,299 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-25 20:20:31,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:20:31,300 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:31,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1425829592, now seen corresponding path program 1 times [2021-11-25 20:20:31,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:31,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228424423] [2021-11-25 20:20:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:31,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-25 20:20:31,674 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:31,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228424423] [2021-11-25 20:20:31,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228424423] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:20:31,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830030412] [2021-11-25 20:20:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:31,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:20:31,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:20:31,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:20:31,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:20:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:33,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 6002 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 20:20:33,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:20:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-25 20:20:33,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:20:33,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830030412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:33,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:20:33,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2021-11-25 20:20:33,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557359359] [2021-11-25 20:20:33,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:33,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:20:33,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:20:33,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:20:33,960 INFO L87 Difference]: Start difference. First operand 52623 states and 78367 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-25 20:20:37,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:39,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:39,461 INFO L93 Difference]: Finished difference Result 52705 states and 78432 transitions. [2021-11-25 20:20:39,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:20:39,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 201 [2021-11-25 20:20:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:39,632 INFO L225 Difference]: With dead ends: 52705 [2021-11-25 20:20:39,632 INFO L226 Difference]: Without dead ends: 52702 [2021-11-25 20:20:39,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:20:39,651 INFO L933 BasicCegarLoop]: 3021 mSDtfsCounter, 37 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 9007 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:39,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 9007 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 934 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 20:20:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52702 states. [2021-11-25 20:20:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52702 to 52686. [2021-11-25 20:20:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52686 states, 31422 states have (on average 1.331169244478391) internal successors, (41828), 34005 states have internal predecessors, (41828), 17109 states have call successors, (17109), 3905 states have call predecessors, (17109), 4154 states have return successors, (19453), 16291 states have call predecessors, (19453), 17107 states have call successors, (19453) [2021-11-25 20:20:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52686 states to 52686 states and 78390 transitions. [2021-11-25 20:20:42,041 INFO L78 Accepts]: Start accepts. Automaton has 52686 states and 78390 transitions. Word has length 201 [2021-11-25 20:20:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:42,042 INFO L470 AbstractCegarLoop]: Abstraction has 52686 states and 78390 transitions. [2021-11-25 20:20:42,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-25 20:20:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 52686 states and 78390 transitions. [2021-11-25 20:20:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-25 20:20:42,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:42,091 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:42,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:20:42,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 20:20:42,305 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:42,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1345047795, now seen corresponding path program 1 times [2021-11-25 20:20:42,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:42,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906544917] [2021-11-25 20:20:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:42,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-25 20:20:43,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:43,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906544917] [2021-11-25 20:20:43,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906544917] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:20:43,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791744537] [2021-11-25 20:20:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:43,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:20:43,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:20:43,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:20:43,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:20:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:44,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 5939 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-25 20:20:44,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:20:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-25 20:20:45,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:20:45,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791744537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:45,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:20:45,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-25 20:20:45,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121300433] [2021-11-25 20:20:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:45,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:45,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:20:45,128 INFO L87 Difference]: Start difference. First operand 52686 states and 78390 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:20:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:50,594 INFO L93 Difference]: Finished difference Result 52730 states and 78450 transitions. [2021-11-25 20:20:50,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:20:50,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 196 [2021-11-25 20:20:50,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:50,599 INFO L225 Difference]: With dead ends: 52730 [2021-11-25 20:20:50,599 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 20:20:50,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:20:50,764 INFO L933 BasicCegarLoop]: 2938 mSDtfsCounter, 3535 mSDsluCounter, 4745 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 7086 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:50,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3539 Valid, 7086 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 20:20:50,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 20:20:50,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 20:20:50,766 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) [2021-11-25 20:20:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 20:20:50,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2021-11-25 20:20:50,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:50,775 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 20:20:50,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:20:50,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 20:20:50,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 20:20:50,778 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 20:20:50,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:20:51,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b36192-ee71-4898-847c-cecf19850823/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 20:20:51,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.