./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P --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 07ae4eb392cc9822cbd398c1edf107cccc60d6668bc59dbf5a692a6b9350873b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:40:20,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:40:20,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:40:20,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:40:20,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:40:20,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:40:20,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:40:20,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:40:20,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:40:20,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:40:20,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:40:20,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:40:20,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:40:20,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:40:20,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:40:20,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:40:20,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:40:20,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:40:20,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:40:20,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:40:20,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:40:20,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:40:20,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:40:20,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:40:20,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:40:20,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:40:20,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:40:20,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:40:20,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:40:20,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:40:20,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:40:20,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:40:20,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:40:20,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:40:20,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:40:20,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:40:20,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:40:20,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:40:20,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:40:20,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:40:20,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:40:20,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:40:20,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:40:20,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:40:20,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:40:20,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:40:20,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:40:20,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:40:20,819 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:40:20,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:40:20,819 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:40:20,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:40:20,821 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:40:20,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:40:20,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:40:20,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:40:20,822 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:40:20,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:40:20,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:40:20,822 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:40:20,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:40:20,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:40:20,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:40:20,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:40:20,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:40:20,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:40:20,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:40:20,825 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:40:20,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:40:20,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:40:20,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:40:20,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:40:20,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:40:20,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:40:20,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:40:20,829 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:40:20,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:40:20,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:40:20,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:40:20,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:40:20,830 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_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07ae4eb392cc9822cbd398c1edf107cccc60d6668bc59dbf5a692a6b9350873b [2021-11-20 23:40:21,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:40:21,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:40:21,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:40:21,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:40:21,170 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:40:21,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 23:40:21,231 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/b82eac438/5b12d900ddf24a3abd215e1d1c0b7323/FLAG1d7f04868 [2021-11-20 23:40:21,938 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:40:21,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 23:40:21,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/b82eac438/5b12d900ddf24a3abd215e1d1c0b7323/FLAG1d7f04868 [2021-11-20 23:40:22,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/b82eac438/5b12d900ddf24a3abd215e1d1c0b7323 [2021-11-20 23:40:22,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:40:22,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:40:22,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:40:22,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:40:22,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:40:22,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:40:22" (1/1) ... [2021-11-20 23:40:22,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3260b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:22, skipping insertion in model container [2021-11-20 23:40:22,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:40:22" (1/1) ... [2021-11-20 23:40:22,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:40:22,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:40:23,123 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_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113497,113510] [2021-11-20 23:40:23,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:40:23,220 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:40:23,466 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_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113497,113510] [2021-11-20 23:40:23,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:40:23,535 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:40:23,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23 WrapperNode [2021-11-20 23:40:23,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:40:23,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:40:23,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:40:23,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:40:23,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,686 INFO L137 Inliner]: procedures = 107, calls = 309, calls flagged for inlining = 47, calls inlined = 41, statements flattened = 760 [2021-11-20 23:40:23,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:40:23,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:40:23,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:40:23,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:40:23,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:40:23,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:40:23,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:40:23,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:40:23,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (1/1) ... [2021-11-20 23:40:23,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:40:23,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:40:23,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:40:23,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:40:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:40:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:40:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:40:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:40:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:40:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:40:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:40:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:40:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:40:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-20 23:40:23,943 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-20 23:40:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:40:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 23:40:23,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 23:40:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:40:23,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:40:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2021-11-20 23:40:23,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2021-11-20 23:40:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 23:40:23,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 23:40:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 23:40:23,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 23:40:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:40:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:40:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:40:23,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:40:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:40:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-20 23:40:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-20 23:40:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-11-20 23:40:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-11-20 23:40:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2021-11-20 23:40:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2021-11-20 23:40:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:40:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:40:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:40:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:40:23,946 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:40:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 23:40:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 23:40:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:40:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:40:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:40:24,271 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:40:24,273 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:40:24,365 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:40:25,052 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:40:25,232 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:40:25,233 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:40:25,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:25 BoogieIcfgContainer [2021-11-20 23:40:25,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:40:25,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:40:25,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:40:25,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:40:25,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:40:22" (1/3) ... [2021-11-20 23:40:25,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce98a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:25, skipping insertion in model container [2021-11-20 23:40:25,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:23" (2/3) ... [2021-11-20 23:40:25,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce98a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:25, skipping insertion in model container [2021-11-20 23:40:25,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:25" (3/3) ... [2021-11-20 23:40:25,244 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 23:40:25,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:40:25,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:40:25,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:40:25,306 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 [2021-11-20 23:40:25,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:40:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 108 states have internal predecessors, (133), 43 states have call successors, (43), 16 states have call predecessors, (43), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-20 23:40:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 23:40:25,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:25,335 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] [2021-11-20 23:40:25,336 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1761918605, now seen corresponding path program 1 times [2021-11-20 23:40:25,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:25,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428516302] [2021-11-20 23:40:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:25,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:40:25,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:25,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428516302] [2021-11-20 23:40:25,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428516302] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:25,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:25,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:25,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700213000] [2021-11-20 23:40:25,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:25,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:25,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:25,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:25,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:25,761 INFO L87 Difference]: Start difference. First operand has 156 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 108 states have internal predecessors, (133), 43 states have call successors, (43), 16 states have call predecessors, (43), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:40:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:26,919 INFO L93 Difference]: Finished difference Result 442 states and 608 transitions. [2021-11-20 23:40:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:26,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-11-20 23:40:26,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:26,946 INFO L225 Difference]: With dead ends: 442 [2021-11-20 23:40:26,946 INFO L226 Difference]: Without dead ends: 277 [2021-11-20 23:40:26,952 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 [2021-11-20 23:40:26,962 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 176 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:26,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 373 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:40:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-20 23:40:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-20 23:40:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 177 states have (on average 1.305084745762712) internal successors, (231), 185 states have internal predecessors, (231), 71 states have call successors, (71), 29 states have call predecessors, (71), 28 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-11-20 23:40:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 368 transitions. [2021-11-20 23:40:27,048 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 368 transitions. Word has length 23 [2021-11-20 23:40:27,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:27,049 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 368 transitions. [2021-11-20 23:40:27,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:40:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 368 transitions. [2021-11-20 23:40:27,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 23:40:27,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:27,053 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:27,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:40:27,053 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:27,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:27,054 INFO L85 PathProgramCache]: Analyzing trace with hash -427197548, now seen corresponding path program 1 times [2021-11-20 23:40:27,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:27,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939139262] [2021-11-20 23:40:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:27,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:40:27,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:27,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939139262] [2021-11-20 23:40:27,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939139262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:27,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:27,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:27,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465033074] [2021-11-20 23:40:27,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:27,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:27,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:27,302 INFO L87 Difference]: Start difference. First operand 277 states and 368 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:28,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:28,120 INFO L93 Difference]: Finished difference Result 481 states and 631 transitions. [2021-11-20 23:40:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:28,120 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), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2021-11-20 23:40:28,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:28,125 INFO L225 Difference]: With dead ends: 481 [2021-11-20 23:40:28,125 INFO L226 Difference]: Without dead ends: 478 [2021-11-20 23:40:28,126 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 [2021-11-20 23:40:28,128 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 133 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:28,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 343 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:40:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-20 23:40:28,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 458. [2021-11-20 23:40:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 299 states have (on average 1.3076923076923077) internal successors, (391), 313 states have internal predecessors, (391), 110 states have call successors, (110), 49 states have call predecessors, (110), 48 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-20 23:40:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 606 transitions. [2021-11-20 23:40:28,177 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 606 transitions. Word has length 37 [2021-11-20 23:40:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:28,177 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 606 transitions. [2021-11-20 23:40:28,178 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), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 606 transitions. [2021-11-20 23:40:28,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 23:40:28,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:28,180 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:28,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:40:28,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:28,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash -358217688, now seen corresponding path program 1 times [2021-11-20 23:40:28,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:28,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459679724] [2021-11-20 23:40:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:28,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:40:28,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:28,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459679724] [2021-11-20 23:40:28,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459679724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:28,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:28,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:28,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354582126] [2021-11-20 23:40:28,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:28,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:28,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:28,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:28,292 INFO L87 Difference]: Start difference. First operand 458 states and 606 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:29,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:29,309 INFO L93 Difference]: Finished difference Result 460 states and 607 transitions. [2021-11-20 23:40:29,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:29,310 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), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-11-20 23:40:29,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:29,315 INFO L225 Difference]: With dead ends: 460 [2021-11-20 23:40:29,315 INFO L226 Difference]: Without dead ends: 457 [2021-11-20 23:40:29,316 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 [2021-11-20 23:40:29,317 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:29,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 160 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:40:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-11-20 23:40:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2021-11-20 23:40:29,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 299 states have (on average 1.3043478260869565) internal successors, (390), 312 states have internal predecessors, (390), 109 states have call successors, (109), 49 states have call predecessors, (109), 48 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-20 23:40:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 604 transitions. [2021-11-20 23:40:29,359 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 604 transitions. Word has length 38 [2021-11-20 23:40:29,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:29,359 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 604 transitions. [2021-11-20 23:40:29,359 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), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:29,359 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 604 transitions. [2021-11-20 23:40:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 23:40:29,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:29,362 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:29,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:40:29,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:29,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:29,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1780162839, now seen corresponding path program 1 times [2021-11-20 23:40:29,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:29,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511089583] [2021-11-20 23:40:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:29,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:40:29,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:29,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511089583] [2021-11-20 23:40:29,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511089583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:29,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:29,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:29,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232803604] [2021-11-20 23:40:29,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:29,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:29,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:29,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:29,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:29,492 INFO L87 Difference]: Start difference. First operand 457 states and 604 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:29,908 INFO L93 Difference]: Finished difference Result 459 states and 605 transitions. [2021-11-20 23:40:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:29,908 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), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2021-11-20 23:40:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:29,912 INFO L225 Difference]: With dead ends: 459 [2021-11-20 23:40:29,912 INFO L226 Difference]: Without dead ends: 456 [2021-11-20 23:40:29,913 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 [2021-11-20 23:40:29,914 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:29,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 158 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:40:29,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-20 23:40:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-11-20 23:40:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 299 states have (on average 1.3010033444816054) internal successors, (389), 311 states have internal predecessors, (389), 108 states have call successors, (108), 49 states have call predecessors, (108), 48 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-20 23:40:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 602 transitions. [2021-11-20 23:40:29,954 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 602 transitions. Word has length 39 [2021-11-20 23:40:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:29,955 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 602 transitions. [2021-11-20 23:40:29,955 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), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 602 transitions. [2021-11-20 23:40:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 23:40:29,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:29,957 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:29,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:40:29,957 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:29,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:29,958 INFO L85 PathProgramCache]: Analyzing trace with hash -649512693, now seen corresponding path program 1 times [2021-11-20 23:40:29,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:29,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254206288] [2021-11-20 23:40:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:29,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:40:30,037 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:30,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254206288] [2021-11-20 23:40:30,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254206288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:30,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:30,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:30,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034266217] [2021-11-20 23:40:30,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:30,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:30,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:30,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:30,040 INFO L87 Difference]: Start difference. First operand 456 states and 602 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:30,844 INFO L93 Difference]: Finished difference Result 458 states and 603 transitions. [2021-11-20 23:40:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:30,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2021-11-20 23:40:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:30,848 INFO L225 Difference]: With dead ends: 458 [2021-11-20 23:40:30,849 INFO L226 Difference]: Without dead ends: 455 [2021-11-20 23:40:30,849 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 [2021-11-20 23:40:30,850 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:30,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 156 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:40:30,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2021-11-20 23:40:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2021-11-20 23:40:30,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 299 states have (on average 1.2976588628762542) internal successors, (388), 310 states have internal predecessors, (388), 107 states have call successors, (107), 49 states have call predecessors, (107), 48 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-20 23:40:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 600 transitions. [2021-11-20 23:40:30,887 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 600 transitions. Word has length 40 [2021-11-20 23:40:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:30,887 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 600 transitions. [2021-11-20 23:40:30,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:30,888 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 600 transitions. [2021-11-20 23:40:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 23:40:30,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:30,890 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:30,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:40:30,890 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:30,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1339962010, now seen corresponding path program 1 times [2021-11-20 23:40:30,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:30,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950036446] [2021-11-20 23:40:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:30,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:40:30,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950036446] [2021-11-20 23:40:30,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950036446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:30,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:30,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:30,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175545473] [2021-11-20 23:40:30,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:30,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:30,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:30,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:30,978 INFO L87 Difference]: Start difference. First operand 455 states and 600 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:31,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:31,225 INFO L93 Difference]: Finished difference Result 457 states and 601 transitions. [2021-11-20 23:40:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:31,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2021-11-20 23:40:31,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:31,229 INFO L225 Difference]: With dead ends: 457 [2021-11-20 23:40:31,229 INFO L226 Difference]: Without dead ends: 448 [2021-11-20 23:40:31,230 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 [2021-11-20 23:40:31,230 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 172 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:31,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 155 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:40:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-11-20 23:40:31,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2021-11-20 23:40:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 293 states have (on average 1.2935153583617747) internal successors, (379), 303 states have internal predecessors, (379), 106 states have call successors, (106), 49 states have call predecessors, (106), 48 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-20 23:40:31,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 590 transitions. [2021-11-20 23:40:31,266 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 590 transitions. Word has length 41 [2021-11-20 23:40:31,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:31,266 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 590 transitions. [2021-11-20 23:40:31,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:31,267 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 590 transitions. [2021-11-20 23:40:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 23:40:31,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:31,272 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-11-20 23:40:31,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:40:31,272 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:31,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash 990053141, now seen corresponding path program 1 times [2021-11-20 23:40:31,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:31,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963333242] [2021-11-20 23:40:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:31,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 23:40:31,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:31,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963333242] [2021-11-20 23:40:31,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963333242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:31,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:31,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:31,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101566602] [2021-11-20 23:40:31,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:31,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:31,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:31,363 INFO L87 Difference]: Start difference. First operand 448 states and 590 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:40:32,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:32,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:32,682 INFO L93 Difference]: Finished difference Result 730 states and 962 transitions. [2021-11-20 23:40:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:32,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 113 [2021-11-20 23:40:32,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:32,685 INFO L225 Difference]: With dead ends: 730 [2021-11-20 23:40:32,685 INFO L226 Difference]: Without dead ends: 293 [2021-11-20 23:40:32,688 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 [2021-11-20 23:40:32,689 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 31 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:32,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 296 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:40:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-20 23:40:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 288. [2021-11-20 23:40:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 199 states have (on average 1.3165829145728642) internal successors, (262), 204 states have internal predecessors, (262), 58 states have call successors, (58), 31 states have call predecessors, (58), 30 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-20 23:40:32,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 377 transitions. [2021-11-20 23:40:32,713 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 377 transitions. Word has length 113 [2021-11-20 23:40:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:32,713 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 377 transitions. [2021-11-20 23:40:32,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:40:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 377 transitions. [2021-11-20 23:40:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-20 23:40:32,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:32,716 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2021-11-20 23:40:32,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:40:32,717 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1338285077, now seen corresponding path program 1 times [2021-11-20 23:40:32,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:32,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560286301] [2021-11-20 23:40:32,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:32,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-20 23:40:32,966 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:32,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560286301] [2021-11-20 23:40:32,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560286301] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:40:32,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426985017] [2021-11-20 23:40:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:32,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:40:32,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:40:32,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:40:33,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:40:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:33,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-20 23:40:33,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:40:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 23:40:33,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:40:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-20 23:40:34,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426985017] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:40:34,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1806800056] [2021-11-20 23:40:34,360 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2021-11-20 23:40:34,361 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:40:34,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:40:34,371 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:40:34,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:40:40,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:40:40,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:40:40,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 23:40:41,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:42,397 INFO L244 Elim1Store]: Index analysis took 689 ms [2021-11-20 23:40:42,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 705 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 490 treesize of output 172 [2021-11-20 23:40:46,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:46,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:47,086 INFO L244 Elim1Store]: Index analysis took 697 ms [2021-11-20 23:40:47,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 705 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 490 treesize of output 172 [2021-11-20 23:41:00,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:41:00,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:02,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:04,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:05,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:41:05,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:23,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:25,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:27,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:41:28,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:01,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:01,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:04,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:05,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:33,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:33,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:37,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:37,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:42:56,717 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 657 for LOIs [2021-11-20 23:43:15,696 INFO L354 Elim1Store]: treesize reduction 150, result has 47.6 percent of original size [2021-11-20 23:43:15,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 106 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 186 [2021-11-20 23:43:18,803 INFO L354 Elim1Store]: treesize reduction 270, result has 33.5 percent of original size [2021-11-20 23:43:18,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 121 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 30 case distinctions, treesize of input 92 treesize of output 197 [2021-11-20 23:43:19,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:43:19,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:43:25,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:43:26,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:43:27,038 INFO L354 Elim1Store]: treesize reduction 150, result has 47.6 percent of original size [2021-11-20 23:43:27,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 106 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 186 [2021-11-20 23:43:28,846 INFO L354 Elim1Store]: treesize reduction 270, result has 33.5 percent of original size [2021-11-20 23:43:28,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 121 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 30 case distinctions, treesize of input 92 treesize of output 197 [2021-11-20 23:43:46,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:43:46,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:43:47,306 INFO L354 Elim1Store]: treesize reduction 270, result has 33.5 percent of original size [2021-11-20 23:43:47,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 121 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 30 case distinctions, treesize of input 92 treesize of output 197 [2021-11-20 23:43:49,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 121 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 126 [2021-11-20 23:43:50,091 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 652 for LOIs [2021-11-20 23:43:56,166 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 137 for LOIs [2021-11-20 23:43:56,730 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 138 for LOIs [2021-11-20 23:43:58,530 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:44:13,303 WARN L227 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 652 DAG size of output: 622 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:44:40,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1806800056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:44:40,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:44:40,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [5, 7, 7] total 47 [2021-11-20 23:44:40,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336626767] [2021-11-20 23:44:40,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:44:40,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-20 23:44:40,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:44:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-20 23:44:40,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2011, Unknown=0, NotChecked=0, Total=2162 [2021-11-20 23:44:40,623 INFO L87 Difference]: Start difference. First operand 288 states and 377 transitions. Second operand has 35 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 6 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2021-11-20 23:44:51,640 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 847 DAG size of output: 589 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:44:57,719 WARN L227 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 783 DAG size of output: 581 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:45:04,078 WARN L227 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 785 DAG size of output: 583 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:46:04,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:46:04,861 INFO L93 Difference]: Finished difference Result 677 states and 907 transitions. [2021-11-20 23:46:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-20 23:46:04,862 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 6 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 119 [2021-11-20 23:46:04,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:46:04,865 INFO L225 Difference]: With dead ends: 677 [2021-11-20 23:46:04,865 INFO L226 Difference]: Without dead ends: 387 [2021-11-20 23:46:04,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1200 ImplicationChecksByTransitivity, 113.6s TimeCoverageRelationStatistics Valid=402, Invalid=5298, Unknown=0, NotChecked=0, Total=5700 [2021-11-20 23:46:04,869 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 154 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:46:04,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1907 Invalid, 2370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 23:46:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-20 23:46:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 322. [2021-11-20 23:46:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 226 states have (on average 1.3097345132743363) internal successors, (296), 231 states have internal predecessors, (296), 62 states have call successors, (62), 35 states have call predecessors, (62), 33 states have return successors, (61), 59 states have call predecessors, (61), 61 states have call successors, (61) [2021-11-20 23:46:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 419 transitions. [2021-11-20 23:46:04,932 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 419 transitions. Word has length 119 [2021-11-20 23:46:04,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:46:04,932 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 419 transitions. [2021-11-20 23:46:04,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 27 states have (on average 2.111111111111111) internal successors, (57), 25 states have internal predecessors, (57), 6 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2021-11-20 23:46:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 419 transitions. [2021-11-20 23:46:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 23:46:04,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:04,935 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:46:04,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:46:05,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 23:46:05,155 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:46:05,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1649246808, now seen corresponding path program 1 times [2021-11-20 23:46:05,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:05,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423407324] [2021-11-20 23:46:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:05,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-20 23:46:05,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:05,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423407324] [2021-11-20 23:46:05,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423407324] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:46:05,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045717024] [2021-11-20 23:46:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:05,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:05,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:46:05,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:46:05,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:46:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:05,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 23:46:05,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:46:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-20 23:46:05,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:46:05,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045717024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:46:05,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:46:05,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2021-11-20 23:46:05,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385387115] [2021-11-20 23:46:05,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:46:05,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:46:05,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:46:05,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:46:05,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:46:05,985 INFO L87 Difference]: Start difference. First operand 322 states and 419 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:46:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:46:07,196 INFO L93 Difference]: Finished difference Result 491 states and 648 transitions. [2021-11-20 23:46:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:46:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2021-11-20 23:46:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:46:07,200 INFO L225 Difference]: With dead ends: 491 [2021-11-20 23:46:07,200 INFO L226 Difference]: Without dead ends: 330 [2021-11-20 23:46:07,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:46:07,201 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:46:07,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:46:07,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-20 23:46:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2021-11-20 23:46:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 232 states have (on average 1.3017241379310345) internal successors, (302), 237 states have internal predecessors, (302), 62 states have call successors, (62), 35 states have call predecessors, (62), 35 states have return successors, (69), 61 states have call predecessors, (69), 61 states have call successors, (69) [2021-11-20 23:46:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 433 transitions. [2021-11-20 23:46:07,271 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 433 transitions. Word has length 123 [2021-11-20 23:46:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:46:07,271 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 433 transitions. [2021-11-20 23:46:07,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:46:07,272 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 433 transitions. [2021-11-20 23:46:07,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 23:46:07,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:07,274 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 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] [2021-11-20 23:46:07,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 23:46:07,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:07,498 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:46:07,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash -626866085, now seen corresponding path program 2 times [2021-11-20 23:46:07,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:07,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923289387] [2021-11-20 23:46:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:07,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-20 23:46:07,705 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:07,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923289387] [2021-11-20 23:46:07,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923289387] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:46:07,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385363349] [2021-11-20 23:46:07,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:46:07,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:07,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:46:07,707 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:46:07,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:46:08,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 23:46:08,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:46:08,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 23:46:08,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:46:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-20 23:46:08,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:46:08,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385363349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:46:08,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:46:08,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-11-20 23:46:08,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99181037] [2021-11-20 23:46:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:46:08,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:46:08,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:46:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:46:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:46:08,682 INFO L87 Difference]: Start difference. First operand 330 states and 433 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-20 23:46:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:46:10,192 INFO L93 Difference]: Finished difference Result 458 states and 602 transitions. [2021-11-20 23:46:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:46:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2021-11-20 23:46:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:46:10,196 INFO L225 Difference]: With dead ends: 458 [2021-11-20 23:46:10,197 INFO L226 Difference]: Without dead ends: 453 [2021-11-20 23:46:10,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:46:10,198 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 51 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:46:10,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 444 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:46:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-20 23:46:10,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2021-11-20 23:46:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 318 states have (on average 1.3018867924528301) internal successors, (414), 325 states have internal predecessors, (414), 85 states have call successors, (85), 48 states have call predecessors, (85), 49 states have return successors, (96), 85 states have call predecessors, (96), 84 states have call successors, (96) [2021-11-20 23:46:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 595 transitions. [2021-11-20 23:46:10,265 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 595 transitions. Word has length 127 [2021-11-20 23:46:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:46:10,266 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 595 transitions. [2021-11-20 23:46:10,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-20 23:46:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 595 transitions. [2021-11-20 23:46:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-20 23:46:10,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:10,269 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 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] [2021-11-20 23:46:10,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:46:10,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:46:10,487 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:46:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:10,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1641787915, now seen corresponding path program 1 times [2021-11-20 23:46:10,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:10,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852393132] [2021-11-20 23:46:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:10,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-20 23:46:10,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:10,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852393132] [2021-11-20 23:46:10,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852393132] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:46:10,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809899639] [2021-11-20 23:46:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:10,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:10,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:46:10,635 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:46:10,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:46:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:11,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1483 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:46:11,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:46:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 23:46:11,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:46:11,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809899639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:46:11,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:46:11,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-20 23:46:11,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282165719] [2021-11-20 23:46:11,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:46:11,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:46:11,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:46:11,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:46:11,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:46:11,332 INFO L87 Difference]: Start difference. First operand 453 states and 595 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:46:14,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:46:14,020 INFO L93 Difference]: Finished difference Result 1089 states and 1458 transitions. [2021-11-20 23:46:14,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:46:14,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2021-11-20 23:46:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:46:14,029 INFO L225 Difference]: With dead ends: 1089 [2021-11-20 23:46:14,029 INFO L226 Difference]: Without dead ends: 1084 [2021-11-20 23:46:14,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:46:14,030 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 373 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:46:14,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 803 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:46:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2021-11-20 23:46:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 988. [2021-11-20 23:46:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 684 states have (on average 1.3114035087719298) internal successors, (897), 704 states have internal predecessors, (897), 195 states have call successors, (195), 103 states have call predecessors, (195), 108 states have return successors, (222), 194 states have call predecessors, (222), 194 states have call successors, (222) [2021-11-20 23:46:14,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1314 transitions. [2021-11-20 23:46:14,158 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1314 transitions. Word has length 131 [2021-11-20 23:46:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:46:14,159 INFO L470 AbstractCegarLoop]: Abstraction has 988 states and 1314 transitions. [2021-11-20 23:46:14,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:46:14,159 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1314 transitions. [2021-11-20 23:46:14,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-20 23:46:14,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:14,163 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 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] [2021-11-20 23:46:14,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:46:14,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-20 23:46:14,378 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:46:14,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2029649410, now seen corresponding path program 1 times [2021-11-20 23:46:14,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:14,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525918695] [2021-11-20 23:46:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:14,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-20 23:46:14,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:14,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525918695] [2021-11-20 23:46:14,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525918695] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:46:14,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993586175] [2021-11-20 23:46:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:14,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:14,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:46:14,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:46:14,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:46:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:15,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 90 conjunts are in the unsatisfiable core [2021-11-20 23:46:15,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:46:15,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:46:15,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 23:46:16,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-20 23:46:16,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2021-11-20 23:46:24,340 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-20 23:46:24,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-20 23:46:24,349 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:46:24,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-11-20 23:49:20,990 INFO L354 Elim1Store]: treesize reduction 78, result has 22.8 percent of original size [2021-11-20 23:49:20,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 46 treesize of output 64 [2021-11-20 23:49:21,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-11-20 23:50:47,058 INFO L354 Elim1Store]: treesize reduction 78, result has 22.8 percent of original size [2021-11-20 23:50:47,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 86 [2021-11-20 23:50:47,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-11-20 23:51:01,536 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-20 23:51:01,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 110 [2021-11-20 23:51:01,541 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-20 23:51:01,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [307073502] [2021-11-20 23:51:01,546 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-20 23:51:01,546 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:51:01,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:51:01,547 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:51:01,547 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:51:06,356 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@58feffdc at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.assertLhs(IncrementalPlicationChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.(ArrayIndexEqualityManager.java:92) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:388) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:903) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyEliminationToAtom(QuantifierPusher.java:311) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:145) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:278) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:85) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:71) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 23:51:06,359 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:51:06,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-11-20 23:51:06,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441787100] [2021-11-20 23:51:06,360 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 23:51:06,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:51:06,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:51:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:51:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1014, Unknown=42, NotChecked=0, Total=1190 [2021-11-20 23:51:06,362 INFO L87 Difference]: Start difference. First operand 988 states and 1314 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 23:51:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:51:06,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 66 SyntacticMatches, 14 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 282.6s TimeCoverageRelationStatistics Valid=134, Invalid=1014, Unknown=42, NotChecked=0, Total=1190 [2021-11-20 23:51:06,364 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:06,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:06,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-20 23:51:06,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:51:06,581 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@58feffdc at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 23:51:06,583 INFO L158 Benchmark]: Toolchain (without parser) took 644511.08ms. Allocated memory was 109.1MB in the beginning and 465.6MB in the end (delta: 356.5MB). Free memory was 79.9MB in the beginning and 318.8MB in the end (delta: -238.9MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. [2021-11-20 23:51:06,584 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:51:06,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1460.23ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 79.9MB in the beginning and 94.1MB in the end (delta: -14.2MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2021-11-20 23:51:06,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 149.83ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 88.5MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 23:51:06,585 INFO L158 Benchmark]: Boogie Preprocessor took 132.50ms. Allocated memory is still 138.4MB. Free memory was 88.5MB in the beginning and 83.0MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 23:51:06,585 INFO L158 Benchmark]: RCFGBuilder took 1415.59ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 83.0MB in the beginning and 131.2MB in the end (delta: -48.2MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2021-11-20 23:51:06,585 INFO L158 Benchmark]: TraceAbstraction took 641345.43ms. Allocated memory was 184.5MB in the beginning and 465.6MB in the end (delta: 281.0MB). Free memory was 131.2MB in the beginning and 318.8MB in the end (delta: -187.6MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. [2021-11-20 23:51:06,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1460.23ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 79.9MB in the beginning and 94.1MB in the end (delta: -14.2MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 149.83ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 88.5MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.50ms. Allocated memory is still 138.4MB. Free memory was 88.5MB in the beginning and 83.0MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1415.59ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 83.0MB in the beginning and 131.2MB in the end (delta: -48.2MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 641345.43ms. Allocated memory was 184.5MB in the beginning and 465.6MB in the end (delta: 281.0MB). Free memory was 131.2MB in the beginning and 318.8MB in the end (delta: -187.6MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@58feffdc de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@58feffdc: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-20 23:51:06,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P --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 07ae4eb392cc9822cbd398c1edf107cccc60d6668bc59dbf5a692a6b9350873b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:51:08,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:51:08,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:51:08,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:51:08,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:51:08,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:51:08,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:51:08,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:51:08,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:51:08,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:51:08,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:51:08,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:51:08,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:51:08,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:51:08,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:51:08,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:51:08,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:51:08,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:51:08,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:51:08,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:51:08,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:51:08,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:51:08,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:51:08,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:51:08,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:51:08,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:51:08,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:51:08,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:51:08,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:51:08,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:51:08,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:51:08,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:51:08,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:51:08,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:51:08,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:51:08,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:51:08,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:51:08,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:51:08,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:51:08,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:51:08,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:51:08,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-20 23:51:08,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:51:08,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:51:08,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:51:08,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:51:08,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:51:08,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:51:08,935 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:51:08,936 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:51:08,936 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:51:08,937 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:51:08,937 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:51:08,938 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:51:08,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:51:08,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:51:08,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:51:08,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:51:08,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:51:08,941 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 23:51:08,941 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 23:51:08,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:51:08,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:51:08,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:51:08,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:51:08,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 23:51:08,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:51:08,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:51:08,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:51:08,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:51:08,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:51:08,945 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 23:51:08,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 23:51:08,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:51:08,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:51:08,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:51:08,946 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07ae4eb392cc9822cbd398c1edf107cccc60d6668bc59dbf5a692a6b9350873b [2021-11-20 23:51:09,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:51:09,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:51:09,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:51:09,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:51:09,321 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:51:09,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 23:51:09,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/2449c7e88/e12c04da56844cc98c80a2842f61a681/FLAGd9b6c3433 [2021-11-20 23:51:10,183 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:51:10,184 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 23:51:10,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/2449c7e88/e12c04da56844cc98c80a2842f61a681/FLAGd9b6c3433 [2021-11-20 23:51:10,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/data/2449c7e88/e12c04da56844cc98c80a2842f61a681 [2021-11-20 23:51:10,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:51:10,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:51:10,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:51:10,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:51:10,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:51:10,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:10" (1/1) ... [2021-11-20 23:51:10,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780a2af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:10, skipping insertion in model container [2021-11-20 23:51:10,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:10" (1/1) ... [2021-11-20 23:51:10,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:51:10,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:51:11,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113497,113510] [2021-11-20 23:51:11,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:51:11,254 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:51:11,469 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_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113497,113510] [2021-11-20 23:51:11,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:51:11,551 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:51:11,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11 WrapperNode [2021-11-20 23:51:11,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:51:11,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:51:11,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:51:11,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:51:11,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,704 INFO L137 Inliner]: procedures = 116, calls = 309, calls flagged for inlining = 47, calls inlined = 41, statements flattened = 740 [2021-11-20 23:51:11,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:51:11,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:51:11,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:51:11,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:51:11,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:51:11,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:51:11,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:51:11,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:51:11,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (1/1) ... [2021-11-20 23:51:11,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:51:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:51:11,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:51:11,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:51:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-20 23:51:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-20 23:51:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 23:51:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-20 23:51:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:51:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:51:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:51:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:51:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:51:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:51:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:51:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:51:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-20 23:51:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-20 23:51:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 23:51:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 23:51:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:51:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:51:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2021-11-20 23:51:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2021-11-20 23:51:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 23:51:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 23:51:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 23:51:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 23:51:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:51:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:51:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:51:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:51:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:51:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-20 23:51:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-20 23:51:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-11-20 23:51:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-11-20 23:51:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2021-11-20 23:51:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2021-11-20 23:51:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:51:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-20 23:51:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-20 23:51:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:51:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 23:51:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:51:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-20 23:51:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:51:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:51:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 23:51:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-20 23:51:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-20 23:51:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 23:51:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 23:51:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:51:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:51:12,391 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:51:12,393 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:51:12,489 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:51:14,592 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:51:14,602 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:51:14,603 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:51:14,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:14 BoogieIcfgContainer [2021-11-20 23:51:14,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:51:14,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:51:14,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:51:14,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:51:14,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:51:10" (1/3) ... [2021-11-20 23:51:14,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f371a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:14, skipping insertion in model container [2021-11-20 23:51:14,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:11" (2/3) ... [2021-11-20 23:51:14,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f371a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:14, skipping insertion in model container [2021-11-20 23:51:14,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:14" (3/3) ... [2021-11-20 23:51:14,613 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 23:51:14,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:51:14,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:51:14,723 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:51:14,732 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 [2021-11-20 23:51:14,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:51:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 183 states have internal predecessors, (224), 43 states have call successors, (43), 16 states have call predecessors, (43), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-20 23:51:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 23:51:14,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:14,779 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] [2021-11-20 23:51:14,779 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1798989029, now seen corresponding path program 1 times [2021-11-20 23:51:14,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:14,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327966175] [2021-11-20 23:51:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:14,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:14,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:14,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:14,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 23:51:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:15,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 23:51:15,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:51:15,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:15,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:51:15,511 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:15,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327966175] [2021-11-20 23:51:15,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327966175] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:15,513 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:15,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 23:51:15,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428846068] [2021-11-20 23:51:15,515 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:15,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:51:15,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:15,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:51:15,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:51:15,566 INFO L87 Difference]: Start difference. First operand has 231 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 183 states have internal predecessors, (224), 43 states have call successors, (43), 16 states have call predecessors, (43), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:51:15,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:15,619 INFO L93 Difference]: Finished difference Result 457 states and 617 transitions. [2021-11-20 23:51:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:51:15,624 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2021-11-20 23:51:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:15,648 INFO L225 Difference]: With dead ends: 457 [2021-11-20 23:51:15,648 INFO L226 Difference]: Without dead ends: 220 [2021-11-20 23:51:15,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:51:15,657 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:15,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-20 23:51:15,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-20 23:51:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 166 states have (on average 1.2771084337349397) internal successors, (212), 172 states have internal predecessors, (212), 39 states have call successors, (39), 15 states have call predecessors, (39), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-20 23:51:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 285 transitions. [2021-11-20 23:51:15,720 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 285 transitions. Word has length 32 [2021-11-20 23:51:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:15,721 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 285 transitions. [2021-11-20 23:51:15,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:51:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 285 transitions. [2021-11-20 23:51:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 23:51:15,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:15,724 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] [2021-11-20 23:51:15,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:15,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:15,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:15,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:15,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1376287203, now seen corresponding path program 1 times [2021-11-20 23:51:15,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:15,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838787524] [2021-11-20 23:51:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:15,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:15,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:15,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:15,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 23:51:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:16,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:51:16,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:51:16,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:51:16,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:16,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838787524] [2021-11-20 23:51:16,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838787524] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:16,417 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:16,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 23:51:16,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425669052] [2021-11-20 23:51:16,418 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:16,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:51:16,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:16,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:51:16,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:51:16,420 INFO L87 Difference]: Start difference. First operand 220 states and 285 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:51:16,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:16,977 INFO L93 Difference]: Finished difference Result 802 states and 1046 transitions. [2021-11-20 23:51:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:51:16,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2021-11-20 23:51:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:16,986 INFO L225 Difference]: With dead ends: 802 [2021-11-20 23:51:16,986 INFO L226 Difference]: Without dead ends: 587 [2021-11-20 23:51:16,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:51:16,990 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 682 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:16,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 777 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 23:51:16,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-11-20 23:51:17,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2021-11-20 23:51:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 445 states have (on average 1.2719101123595506) internal successors, (566), 455 states have internal predecessors, (566), 101 states have call successors, (101), 41 states have call predecessors, (101), 40 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-20 23:51:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 763 transitions. [2021-11-20 23:51:17,080 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 763 transitions. Word has length 32 [2021-11-20 23:51:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:17,080 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 763 transitions. [2021-11-20 23:51:17,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:51:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 763 transitions. [2021-11-20 23:51:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-20 23:51:17,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:17,091 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:17,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:17,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:17,305 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash 451634024, now seen corresponding path program 1 times [2021-11-20 23:51:17,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:17,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545361230] [2021-11-20 23:51:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:17,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:17,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:17,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:17,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 23:51:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:17,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:51:17,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:17,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:17,955 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:17,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:17,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545361230] [2021-11-20 23:51:17,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545361230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:17,956 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:17,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-20 23:51:17,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161743806] [2021-11-20 23:51:17,957 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:17,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:51:17,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:51:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:51:17,960 INFO L87 Difference]: Start difference. First operand 587 states and 763 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 23:51:18,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:18,295 INFO L93 Difference]: Finished difference Result 1434 states and 1917 transitions. [2021-11-20 23:51:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:51:18,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2021-11-20 23:51:18,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:18,308 INFO L225 Difference]: With dead ends: 1434 [2021-11-20 23:51:18,308 INFO L226 Difference]: Without dead ends: 862 [2021-11-20 23:51:18,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:51:18,314 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 620 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:18,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 1111 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:51:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2021-11-20 23:51:18,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 590. [2021-11-20 23:51:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 448 states have (on average 1.2678571428571428) internal successors, (568), 458 states have internal predecessors, (568), 101 states have call successors, (101), 41 states have call predecessors, (101), 40 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-20 23:51:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 765 transitions. [2021-11-20 23:51:18,400 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 765 transitions. Word has length 55 [2021-11-20 23:51:18,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:18,401 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 765 transitions. [2021-11-20 23:51:18,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 23:51:18,401 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 765 transitions. [2021-11-20 23:51:18,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-20 23:51:18,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:18,404 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:18,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:18,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:18,619 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:18,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1188950696, now seen corresponding path program 1 times [2021-11-20 23:51:18,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:18,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135809037] [2021-11-20 23:51:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:18,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:18,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:18,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:18,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 23:51:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:18,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:51:18,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:19,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:19,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:19,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135809037] [2021-11-20 23:51:19,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135809037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:19,757 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:19,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-20 23:51:19,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465986704] [2021-11-20 23:51:19,757 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:19,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:51:19,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:51:19,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:51:19,759 INFO L87 Difference]: Start difference. First operand 590 states and 765 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 23:51:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:19,970 INFO L93 Difference]: Finished difference Result 1741 states and 2269 transitions. [2021-11-20 23:51:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:51:19,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 55 [2021-11-20 23:51:19,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:19,984 INFO L225 Difference]: With dead ends: 1741 [2021-11-20 23:51:19,984 INFO L226 Difference]: Without dead ends: 1166 [2021-11-20 23:51:19,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:51:19,989 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 264 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:19,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 843 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:51:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2021-11-20 23:51:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1154. [2021-11-20 23:51:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 881 states have (on average 1.264472190692395) internal successors, (1114), 897 states have internal predecessors, (1114), 194 states have call successors, (194), 79 states have call predecessors, (194), 78 states have return successors, (192), 189 states have call predecessors, (192), 189 states have call successors, (192) [2021-11-20 23:51:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1500 transitions. [2021-11-20 23:51:20,104 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1500 transitions. Word has length 55 [2021-11-20 23:51:20,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:20,105 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 1500 transitions. [2021-11-20 23:51:20,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 23:51:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1500 transitions. [2021-11-20 23:51:20,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 23:51:20,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:20,109 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:20,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:20,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:20,328 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:20,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:20,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1797229676, now seen corresponding path program 1 times [2021-11-20 23:51:20,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:20,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967514874] [2021-11-20 23:51:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:20,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:20,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:20,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:20,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 23:51:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:20,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:51:20,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:21,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:21,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:21,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967514874] [2021-11-20 23:51:21,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967514874] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:21,401 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:21,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-20 23:51:21,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037272894] [2021-11-20 23:51:21,402 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:21,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:51:21,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:51:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:51:21,403 INFO L87 Difference]: Start difference. First operand 1154 states and 1500 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 23:51:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:21,643 INFO L93 Difference]: Finished difference Result 1156 states and 1501 transitions. [2021-11-20 23:51:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2021-11-20 23:51:21,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:21,653 INFO L225 Difference]: With dead ends: 1156 [2021-11-20 23:51:21,653 INFO L226 Difference]: Without dead ends: 1153 [2021-11-20 23:51:21,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:51:21,655 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 431 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:21,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 282 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:51:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-11-20 23:51:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2021-11-20 23:51:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 881 states have (on average 1.2633371169125993) internal successors, (1113), 896 states have internal predecessors, (1113), 193 states have call successors, (193), 79 states have call predecessors, (193), 78 states have return successors, (192), 189 states have call predecessors, (192), 189 states have call successors, (192) [2021-11-20 23:51:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1498 transitions. [2021-11-20 23:51:21,780 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1498 transitions. Word has length 56 [2021-11-20 23:51:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:21,781 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1498 transitions. [2021-11-20 23:51:21,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 23:51:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1498 transitions. [2021-11-20 23:51:21,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 23:51:21,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:21,783 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:21,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:22,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:22,002 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:22,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:22,004 INFO L85 PathProgramCache]: Analyzing trace with hash 120464171, now seen corresponding path program 1 times [2021-11-20 23:51:22,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:22,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009650332] [2021-11-20 23:51:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:22,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:22,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:22,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:22,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 23:51:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:22,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:51:22,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:22,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:22,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:22,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009650332] [2021-11-20 23:51:22,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009650332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:22,690 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:22,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-20 23:51:22,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648067017] [2021-11-20 23:51:22,691 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:22,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:22,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:22,693 INFO L87 Difference]: Start difference. First operand 1153 states and 1498 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:51:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:22,771 INFO L93 Difference]: Finished difference Result 1155 states and 1499 transitions. [2021-11-20 23:51:22,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:22,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2021-11-20 23:51:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:22,780 INFO L225 Difference]: With dead ends: 1155 [2021-11-20 23:51:22,780 INFO L226 Difference]: Without dead ends: 1152 [2021-11-20 23:51:22,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:22,782 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 240 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:22,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 280 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-11-20 23:51:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2021-11-20 23:51:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 881 states have (on average 1.2622020431328036) internal successors, (1112), 895 states have internal predecessors, (1112), 192 states have call successors, (192), 79 states have call predecessors, (192), 78 states have return successors, (192), 189 states have call predecessors, (192), 189 states have call successors, (192) [2021-11-20 23:51:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1496 transitions. [2021-11-20 23:51:22,895 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1496 transitions. Word has length 57 [2021-11-20 23:51:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:22,895 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1496 transitions. [2021-11-20 23:51:22,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:51:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1496 transitions. [2021-11-20 23:51:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 23:51:22,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:22,897 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:22,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:23,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:23,116 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:23,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:23,117 INFO L85 PathProgramCache]: Analyzing trace with hash -560563849, now seen corresponding path program 1 times [2021-11-20 23:51:23,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:23,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330914115] [2021-11-20 23:51:23,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:23,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:23,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:23,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:23,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 23:51:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:23,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:51:23,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:23,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:23,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:23,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330914115] [2021-11-20 23:51:23,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330914115] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:23,793 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:23,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-20 23:51:23,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548248806] [2021-11-20 23:51:23,794 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:23,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:23,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:23,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:23,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:23,795 INFO L87 Difference]: Start difference. First operand 1152 states and 1496 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:51:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:23,875 INFO L93 Difference]: Finished difference Result 1154 states and 1497 transitions. [2021-11-20 23:51:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-20 23:51:23,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:23,883 INFO L225 Difference]: With dead ends: 1154 [2021-11-20 23:51:23,883 INFO L226 Difference]: Without dead ends: 1151 [2021-11-20 23:51:23,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:23,885 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 237 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:23,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 278 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:23,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2021-11-20 23:51:23,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2021-11-20 23:51:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 881 states have (on average 1.2610669693530079) internal successors, (1111), 894 states have internal predecessors, (1111), 191 states have call successors, (191), 79 states have call predecessors, (191), 78 states have return successors, (192), 189 states have call predecessors, (192), 189 states have call successors, (192) [2021-11-20 23:51:24,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1494 transitions. [2021-11-20 23:51:24,002 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1494 transitions. Word has length 58 [2021-11-20 23:51:24,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:24,003 INFO L470 AbstractCegarLoop]: Abstraction has 1151 states and 1494 transitions. [2021-11-20 23:51:24,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:51:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1494 transitions. [2021-11-20 23:51:24,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 23:51:24,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:24,005 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:24,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:24,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:24,220 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:24,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash -197591122, now seen corresponding path program 1 times [2021-11-20 23:51:24,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:24,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922549139] [2021-11-20 23:51:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:24,222 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:24,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:24,223 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:24,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 23:51:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:24,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:51:24,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:24,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 23:51:24,833 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:24,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922549139] [2021-11-20 23:51:24,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922549139] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:24,833 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:24,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-20 23:51:24,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551469930] [2021-11-20 23:51:24,834 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:24,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:24,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:24,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:24,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:24,835 INFO L87 Difference]: Start difference. First operand 1151 states and 1494 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:51:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:24,923 INFO L93 Difference]: Finished difference Result 1153 states and 1495 transitions. [2021-11-20 23:51:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:24,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2021-11-20 23:51:24,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:24,931 INFO L225 Difference]: With dead ends: 1153 [2021-11-20 23:51:24,931 INFO L226 Difference]: Without dead ends: 1141 [2021-11-20 23:51:24,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:24,932 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 234 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:24,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:24,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2021-11-20 23:51:25,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2021-11-20 23:51:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 872 states have (on average 1.260321100917431) internal successors, (1099), 884 states have internal predecessors, (1099), 190 states have call successors, (190), 79 states have call predecessors, (190), 78 states have return successors, (192), 189 states have call predecessors, (192), 189 states have call successors, (192) [2021-11-20 23:51:25,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1481 transitions. [2021-11-20 23:51:25,025 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1481 transitions. Word has length 59 [2021-11-20 23:51:25,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:25,026 INFO L470 AbstractCegarLoop]: Abstraction has 1141 states and 1481 transitions. [2021-11-20 23:51:25,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 23:51:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1481 transitions. [2021-11-20 23:51:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-20 23:51:25,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:25,031 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-11-20 23:51:25,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:25,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:25,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:25,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash 415459010, now seen corresponding path program 1 times [2021-11-20 23:51:25,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:25,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360821671] [2021-11-20 23:51:25,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:25,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:25,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:25,250 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:25,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 23:51:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:25,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:51:25,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-20 23:51:25,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-20 23:51:26,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:26,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360821671] [2021-11-20 23:51:26,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360821671] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:26,396 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:26,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 23:51:26,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253987224] [2021-11-20 23:51:26,397 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:26,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:51:26,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:51:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:26,399 INFO L87 Difference]: Start difference. First operand 1141 states and 1481 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:51:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:26,548 INFO L93 Difference]: Finished difference Result 2357 states and 3073 transitions. [2021-11-20 23:51:26,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:51:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 159 [2021-11-20 23:51:26,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:26,557 INFO L225 Difference]: With dead ends: 2357 [2021-11-20 23:51:26,557 INFO L226 Difference]: Without dead ends: 1231 [2021-11-20 23:51:26,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:51:26,561 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 41 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:26,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 533 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2021-11-20 23:51:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1208. [2021-11-20 23:51:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 938 states have (on average 1.2707889125799574) internal successors, (1192), 950 states have internal predecessors, (1192), 190 states have call successors, (190), 80 states have call predecessors, (190), 79 states have return successors, (192), 189 states have call predecessors, (192), 189 states have call successors, (192) [2021-11-20 23:51:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1574 transitions. [2021-11-20 23:51:26,652 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1574 transitions. Word has length 159 [2021-11-20 23:51:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:26,652 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1574 transitions. [2021-11-20 23:51:26,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:51:26,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1574 transitions. [2021-11-20 23:51:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-20 23:51:26,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:26,660 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:26,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:26,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:26,884 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:26,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:26,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1466528889, now seen corresponding path program 1 times [2021-11-20 23:51:26,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:26,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918151350] [2021-11-20 23:51:26,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:26,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:26,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:26,886 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:26,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 23:51:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:27,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:51:27,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-20 23:51:27,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-20 23:51:28,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:28,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918151350] [2021-11-20 23:51:28,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918151350] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 23:51:28,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:51:28,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-20 23:51:28,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24592692] [2021-11-20 23:51:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:28,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:51:28,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:28,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:51:28,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:51:28,221 INFO L87 Difference]: Start difference. First operand 1208 states and 1574 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:51:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:28,329 INFO L93 Difference]: Finished difference Result 2421 states and 3171 transitions. [2021-11-20 23:51:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:51:28,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 168 [2021-11-20 23:51:28,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:28,338 INFO L225 Difference]: With dead ends: 2421 [2021-11-20 23:51:28,338 INFO L226 Difference]: Without dead ends: 1220 [2021-11-20 23:51:28,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:51:28,342 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:28,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1082 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:51:28,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2021-11-20 23:51:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2021-11-20 23:51:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 944 states have (on average 1.2690677966101696) internal successors, (1198), 962 states have internal predecessors, (1198), 190 states have call successors, (190), 80 states have call predecessors, (190), 85 states have return successors, (210), 189 states have call predecessors, (210), 189 states have call successors, (210) [2021-11-20 23:51:28,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1598 transitions. [2021-11-20 23:51:28,452 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1598 transitions. Word has length 168 [2021-11-20 23:51:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:28,453 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1598 transitions. [2021-11-20 23:51:28,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:51:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1598 transitions. [2021-11-20 23:51:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-20 23:51:28,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:28,458 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:28,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:28,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:28,679 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:28,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:28,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1167905577, now seen corresponding path program 1 times [2021-11-20 23:51:28,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:28,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074014764] [2021-11-20 23:51:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:28,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:28,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:28,681 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:28,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 23:51:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:29,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:51:29,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:29,515 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-20 23:51:29,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-20 23:51:29,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:29,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074014764] [2021-11-20 23:51:29,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074014764] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:29,854 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:29,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-20 23:51:29,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073822666] [2021-11-20 23:51:29,855 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:29,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:51:29,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:51:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:51:29,856 INFO L87 Difference]: Start difference. First operand 1220 states and 1598 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:51:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:30,105 INFO L93 Difference]: Finished difference Result 3192 states and 4302 transitions. [2021-11-20 23:51:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:51:30,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2021-11-20 23:51:30,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:30,118 INFO L225 Difference]: With dead ends: 3192 [2021-11-20 23:51:30,118 INFO L226 Difference]: Without dead ends: 1991 [2021-11-20 23:51:30,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:51:30,122 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 333 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:30,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1332 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:51:30,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2021-11-20 23:51:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1238. [2021-11-20 23:51:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 962 states have (on average 1.264033264033264) internal successors, (1216), 980 states have internal predecessors, (1216), 190 states have call successors, (190), 80 states have call predecessors, (190), 85 states have return successors, (210), 189 states have call predecessors, (210), 189 states have call successors, (210) [2021-11-20 23:51:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1616 transitions. [2021-11-20 23:51:30,249 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1616 transitions. Word has length 174 [2021-11-20 23:51:30,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:30,249 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1616 transitions. [2021-11-20 23:51:30,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:51:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1616 transitions. [2021-11-20 23:51:30,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-20 23:51:30,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:30,255 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:30,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:30,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:30,474 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1428729328, now seen corresponding path program 1 times [2021-11-20 23:51:30,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:30,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091452967] [2021-11-20 23:51:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:30,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:30,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:30,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 23:51:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:30,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-20 23:51:30,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-20 23:51:31,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-20 23:51:32,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:32,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091452967] [2021-11-20 23:51:32,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091452967] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 23:51:32,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:51:32,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2021-11-20 23:51:32,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889613813] [2021-11-20 23:51:32,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:32,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:51:32,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:51:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-20 23:51:32,405 INFO L87 Difference]: Start difference. First operand 1238 states and 1616 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:51:33,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:34,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:34,171 INFO L93 Difference]: Finished difference Result 3213 states and 4313 transitions. [2021-11-20 23:51:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 23:51:34,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2021-11-20 23:51:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:34,185 INFO L225 Difference]: With dead ends: 3213 [2021-11-20 23:51:34,185 INFO L226 Difference]: Without dead ends: 1994 [2021-11-20 23:51:34,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-20 23:51:34,190 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 203 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:34,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3321 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:51:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2021-11-20 23:51:34,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1286. [2021-11-20 23:51:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1004 states have (on average 1.252988047808765) internal successors, (1258), 1016 states have internal predecessors, (1258), 190 states have call successors, (190), 80 states have call predecessors, (190), 91 states have return successors, (222), 201 states have call predecessors, (222), 189 states have call successors, (222) [2021-11-20 23:51:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1670 transitions. [2021-11-20 23:51:34,317 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1670 transitions. Word has length 176 [2021-11-20 23:51:34,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:34,317 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 1670 transitions. [2021-11-20 23:51:34,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:51:34,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1670 transitions. [2021-11-20 23:51:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-20 23:51:34,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:34,323 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 23:51:34,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:34,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:34,538 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 47100754, now seen corresponding path program 2 times [2021-11-20 23:51:34,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:34,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911721822] [2021-11-20 23:51:34,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 23:51:34,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:34,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:34,541 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:34,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-20 23:51:34,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 23:51:34,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:51:34,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:51:34,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-20 23:51:35,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:35,419 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-20 23:51:35,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911721822] [2021-11-20 23:51:35,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911721822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:35,419 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:35,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 23:51:35,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9724246] [2021-11-20 23:51:35,420 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:35,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:51:35,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:35,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:51:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:51:35,421 INFO L87 Difference]: Start difference. First operand 1286 states and 1670 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 4 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 23:51:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:36,484 INFO L93 Difference]: Finished difference Result 5723 states and 7513 transitions. [2021-11-20 23:51:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:51:36,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 4 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2021-11-20 23:51:36,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:36,512 INFO L225 Difference]: With dead ends: 5723 [2021-11-20 23:51:36,513 INFO L226 Difference]: Without dead ends: 4456 [2021-11-20 23:51:36,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2021-11-20 23:51:36,518 INFO L933 BasicCegarLoop]: 772 mSDtfsCounter, 806 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 4228 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:36,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 4228 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 23:51:36,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2021-11-20 23:51:36,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 1298. [2021-11-20 23:51:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1016 states have (on average 1.25) internal successors, (1270), 1028 states have internal predecessors, (1270), 190 states have call successors, (190), 80 states have call predecessors, (190), 91 states have return successors, (222), 201 states have call predecessors, (222), 189 states have call successors, (222) [2021-11-20 23:51:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1682 transitions. [2021-11-20 23:51:36,694 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1682 transitions. Word has length 182 [2021-11-20 23:51:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:36,695 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1682 transitions. [2021-11-20 23:51:36,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 4 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 23:51:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1682 transitions. [2021-11-20 23:51:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-20 23:51:36,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:36,701 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 23:51:36,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:36,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:36,916 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash -964016496, now seen corresponding path program 1 times [2021-11-20 23:51:36,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:36,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026762891] [2021-11-20 23:51:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:36,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:36,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:36,918 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:36,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-20 23:51:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:37,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-20 23:51:37,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 33 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 23:51:37,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-20 23:51:38,741 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:38,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026762891] [2021-11-20 23:51:38,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026762891] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:51:38,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1921230695] [2021-11-20 23:51:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:38,742 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-20 23:51:38,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-20 23:51:38,744 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-20 23:51:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-20 23:51:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:39,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-20 23:51:39,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 33 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 23:51:39,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-20 23:51:40,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1921230695] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:51:40,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530370781] [2021-11-20 23:51:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:40,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:51:40,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:51:40,006 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:51:40,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-20 23:51:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:40,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-20 23:51:40,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 33 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 23:51:40,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-20 23:51:41,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530370781] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:51:41,251 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-20 23:51:41,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-11-20 23:51:41,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136249290] [2021-11-20 23:51:41,252 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-20 23:51:41,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 23:51:41,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 23:51:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-20 23:51:41,255 INFO L87 Difference]: Start difference. First operand 1298 states and 1682 transitions. Second operand has 16 states, 16 states have (on average 8.1875) internal successors, (131), 12 states have internal predecessors, (131), 4 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (25), 8 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-20 23:51:43,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:51:43,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:43,852 INFO L93 Difference]: Finished difference Result 2886 states and 3784 transitions. [2021-11-20 23:51:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:51:43,858 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.1875) internal successors, (131), 12 states have internal predecessors, (131), 4 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (25), 8 states have call predecessors, (25), 4 states have call successors, (25) Word has length 182 [2021-11-20 23:51:43,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:43,869 INFO L225 Difference]: With dead ends: 2886 [2021-11-20 23:51:43,870 INFO L226 Difference]: Without dead ends: 1607 [2021-11-20 23:51:43,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1088 GetRequests, 1072 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-20 23:51:43,874 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 63 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:43,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 4454 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 23:51:43,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2021-11-20 23:51:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1310. [2021-11-20 23:51:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1022 states have (on average 1.24853228962818) internal successors, (1276), 1034 states have internal predecessors, (1276), 196 states have call successors, (196), 80 states have call predecessors, (196), 91 states have return successors, (234), 207 states have call predecessors, (234), 195 states have call successors, (234) [2021-11-20 23:51:44,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1706 transitions. [2021-11-20 23:51:44,040 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1706 transitions. Word has length 182 [2021-11-20 23:51:44,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:44,040 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 1706 transitions. [2021-11-20 23:51:44,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.1875) internal successors, (131), 12 states have internal predecessors, (131), 4 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (25), 8 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-20 23:51:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1706 transitions. [2021-11-20 23:51:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-20 23:51:44,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:44,047 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:44,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:44,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:44,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:44,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt [2021-11-20 23:51:44,667 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash -186049426, now seen corresponding path program 2 times [2021-11-20 23:51:44,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:44,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535329170] [2021-11-20 23:51:44,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 23:51:44,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:44,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:44,670 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:44,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-20 23:51:44,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 23:51:44,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:51:44,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 23:51:44,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-20 23:51:45,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-20 23:51:45,683 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:45,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535329170] [2021-11-20 23:51:45,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535329170] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:45,683 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:51:45,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-20 23:51:45,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116721870] [2021-11-20 23:51:45,684 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:51:45,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:51:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:51:45,686 INFO L87 Difference]: Start difference. First operand 1310 states and 1706 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:51:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:46,878 INFO L93 Difference]: Finished difference Result 2866 states and 3783 transitions. [2021-11-20 23:51:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:51:46,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 188 [2021-11-20 23:51:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:46,890 INFO L225 Difference]: With dead ends: 2866 [2021-11-20 23:51:46,890 INFO L226 Difference]: Without dead ends: 1575 [2021-11-20 23:51:46,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:51:46,896 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 695 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:46,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [695 Valid, 2093 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:51:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2021-11-20 23:51:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1310. [2021-11-20 23:51:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1022 states have (on average 1.24559686888454) internal successors, (1273), 1034 states have internal predecessors, (1273), 196 states have call successors, (196), 80 states have call predecessors, (196), 91 states have return successors, (234), 207 states have call predecessors, (234), 195 states have call successors, (234) [2021-11-20 23:51:47,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1703 transitions. [2021-11-20 23:51:47,051 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1703 transitions. Word has length 188 [2021-11-20 23:51:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:47,051 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 1703 transitions. [2021-11-20 23:51:47,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:51:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1703 transitions. [2021-11-20 23:51:47,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-20 23:51:47,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:47,059 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:47,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:47,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:51:47,275 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:47,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash -793259544, now seen corresponding path program 1 times [2021-11-20 23:51:47,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:47,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309447500] [2021-11-20 23:51:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:47,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:47,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:47,277 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:47,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-20 23:51:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:47,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 23:51:47,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-20 23:51:48,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-20 23:51:48,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:48,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309447500] [2021-11-20 23:51:48,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309447500] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:51:48,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1008460011] [2021-11-20 23:51:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:51:48,920 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-20 23:51:48,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-20 23:51:48,922 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-20 23:51:48,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-20 23:51:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:51:49,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:51:49,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-20 23:51:49,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-20 23:51:50,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1008460011] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:51:50,242 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:51:50,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7, 6] total 15 [2021-11-20 23:51:50,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431560237] [2021-11-20 23:51:50,245 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:51:50,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:51:50,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:51:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:51:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-20 23:51:50,246 INFO L87 Difference]: Start difference. First operand 1310 states and 1703 transitions. Second operand has 8 states, 8 states have (on average 17.25) internal successors, (138), 6 states have internal predecessors, (138), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-20 23:51:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:51:50,702 INFO L93 Difference]: Finished difference Result 4341 states and 5951 transitions. [2021-11-20 23:51:50,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:51:50,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 6 states have internal predecessors, (138), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 207 [2021-11-20 23:51:50,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:51:50,721 INFO L225 Difference]: With dead ends: 4341 [2021-11-20 23:51:50,722 INFO L226 Difference]: Without dead ends: 3050 [2021-11-20 23:51:50,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 811 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-20 23:51:50,726 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 439 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:51:50,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 1711 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:51:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2021-11-20 23:51:50,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 1340. [2021-11-20 23:51:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1046 states have (on average 1.245697896749522) internal successors, (1303), 1052 states have internal predecessors, (1303), 202 states have call successors, (202), 80 states have call predecessors, (202), 91 states have return successors, (240), 219 states have call predecessors, (240), 201 states have call successors, (240) [2021-11-20 23:51:50,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1745 transitions. [2021-11-20 23:51:50,908 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1745 transitions. Word has length 207 [2021-11-20 23:51:50,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:51:50,909 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 1745 transitions. [2021-11-20 23:51:50,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 6 states have internal predecessors, (138), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-20 23:51:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1745 transitions. [2021-11-20 23:51:50,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-20 23:51:50,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:51:50,916 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:51:50,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:51,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-20 23:51:51,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt [2021-11-20 23:51:51,331 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:51:51,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:51:51,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1597693430, now seen corresponding path program 2 times [2021-11-20 23:51:51,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:51:51,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181180044] [2021-11-20 23:51:51,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 23:51:51,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:51:51,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:51:51,334 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:51:51,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-20 23:51:52,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 23:51:52,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:51:53,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:51:53,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:51:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 30 proven. 7 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-20 23:51:53,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:51:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-20 23:51:54,227 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:51:54,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181180044] [2021-11-20 23:51:54,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181180044] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:51:54,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1241025407] [2021-11-20 23:51:54,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 23:51:54,227 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-20 23:51:54,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-20 23:51:54,229 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-20 23:51:54,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-20 23:52:46,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 23:52:46,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:52:46,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:52:46,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:52:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 30 proven. 7 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-20 23:52:46,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:52:47,402 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-20 23:52:47,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1241025407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:52:47,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669458784] [2021-11-20 23:52:47,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 23:52:47,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:47,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:52:47,404 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:52:47,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50bcb7-d48d-46f8-a734-95f83e9fcf8a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process