./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.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_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:53:16,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:53:16,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:53:16,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:53:16,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:53:16,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:53:16,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:53:16,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:53:16,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:53:16,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:53:16,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:53:16,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:53:16,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:53:16,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:53:16,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:53:16,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:53:16,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:53:16,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:53:16,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:53:16,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:53:16,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:53:16,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:53:16,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:53:16,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:53:16,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:53:16,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:53:16,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:53:16,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:53:16,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:53:16,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:53:16,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:53:16,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:53:16,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:53:16,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:53:16,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:53:16,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:53:16,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:53:16,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:53:16,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:53:16,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:53:16,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:53:16,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:53:16,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:53:16,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:53:16,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:53:16,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:53:16,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:53:16,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:53:16,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:53:16,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:53:16,192 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:53:16,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:53:16,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:53:16,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:53:16,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:53:16,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:53:16,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:53:16,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:53:16,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:53:16,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:53:16,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:53:16,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:53:16,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:53:16,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:53:16,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:53:16,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:53:16,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:53:16,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:53:16,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:53:16,199 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:53:16,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:53:16,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:53:16,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:53:16,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc [2021-11-20 06:53:16,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:53:16,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:53:16,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:53:16,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:53:16,544 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:53:16,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2021-11-20 06:53:16,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/data/ab61afbbd/f2a8cbf69b11434bba9580b3ad922959/FLAGbcfecf7ec [2021-11-20 06:53:17,652 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:53:17,654 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2021-11-20 06:53:17,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/data/ab61afbbd/f2a8cbf69b11434bba9580b3ad922959/FLAGbcfecf7ec [2021-11-20 06:53:17,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/data/ab61afbbd/f2a8cbf69b11434bba9580b3ad922959 [2021-11-20 06:53:17,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:53:17,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:53:17,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:53:17,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:53:17,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:53:17,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:53:17" (1/1) ... [2021-11-20 06:53:17,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790baf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:17, skipping insertion in model container [2021-11-20 06:53:17,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:53:17" (1/1) ... [2021-11-20 06:53:17,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:53:18,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:53:18,624 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2021-11-20 06:53:18,625 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2021-11-20 06:53:19,027 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_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2021-11-20 06:53:20,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:53:20,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:53:20,820 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2021-11-20 06:53:20,822 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2021-11-20 06:53:20,837 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_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2021-11-20 06:53:21,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:53:21,453 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:53:21,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21 WrapperNode [2021-11-20 06:53:21,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:53:21,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:53:21,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:53:21,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:53:21,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:21,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,016 INFO L137 Inliner]: procedures = 349, calls = 4495, calls flagged for inlining = 165, calls inlined = 163, statements flattened = 7969 [2021-11-20 06:53:22,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:53:22,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:53:22,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:53:22,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:53:22,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:53:22,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:53:22,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:53:22,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:53:22,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (1/1) ... [2021-11-20 06:53:22,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:53:22,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:53:22,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:53:22,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:53:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_chars [2021-11-20 06:53:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_chars [2021-11-20 06:53:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure uart_poll_timeout [2021-11-20 06:53:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_poll_timeout [2021-11-20 06:53:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2021-11-20 06:53:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2021-11-20 06:53:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_chars [2021-11-20 06:53:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_chars [2021-11-20 06:53:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out_sync [2021-11-20 06:53:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out_sync [2021-11-20 06:53:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_pm [2021-11-20 06:53:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_pm [2021-11-20 06:53:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_write [2021-11-20 06:53:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_write [2021-11-20 06:53:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_read_divisor_id [2021-11-20 06:53:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_read_divisor_id [2021-11-20 06:53:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 06:53:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 06:53:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_mctrl [2021-11-20 06:53:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_mctrl [2021-11-20 06:53:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 06:53:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 06:53:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2021-11-20 06:53:22,635 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2021-11-20 06:53:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_port [2021-11-20 06:53:22,635 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_port [2021-11-20 06:53:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:53:22,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:53:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_tx [2021-11-20 06:53:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_tx [2021-11-20 06:53:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure uart_unregister_driver [2021-11-20 06:53:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_unregister_driver [2021-11-20 06:53:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-20 06:53:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-20 06:53:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_prep_slave_single [2021-11-20 06:53:22,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_prep_slave_single [2021-11-20 06:53:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2021-11-20 06:53:22,637 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2021-11-20 06:53:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_device_control [2021-11-20 06:53:22,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_device_control [2021-11-20 06:53:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 06:53:22,638 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 06:53:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_5 [2021-11-20 06:53:22,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_5 [2021-11-20 06:53:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 06:53:22,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 06:53:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_start_tx [2021-11-20 06:53:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_start_tx [2021-11-20 06:53:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 06:53:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 06:53:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:53:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:53:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_16550a [2021-11-20 06:53:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_16550a [2021-11-20 06:53:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:53:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:53:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_tx_complete [2021-11-20 06:53:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_tx_complete [2021-11-20 06:53:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 06:53:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 06:53:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure dma_release_channel [2021-11-20 06:53:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_release_channel [2021-11-20 06:53:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure check_name [2021-11-20 06:53:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure check_name [2021-11-20 06:53:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 06:53:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 06:53:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure serial_in [2021-11-20 06:53:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_in [2021-11-20 06:53:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_handle_irq [2021-11-20 06:53:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_handle_irq [2021-11-20 06:53:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:53:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure broken_efr [2021-11-20 06:53:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_efr [2021-11-20 06:53:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_submit [2021-11-20 06:53:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_submit [2021-11-20 06:53:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_modem_status [2021-11-20 06:53:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_modem_status [2021-11-20 06:53:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_startup [2021-11-20 06:53:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_startup [2021-11-20 06:53:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 06:53:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 06:53:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pnp_exit [2021-11-20 06:53:22,644 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pnp_exit [2021-11-20 06:53:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure uart_suspend_port [2021-11-20 06:53:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_suspend_port [2021-11-20 06:53:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:53:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_ldisc [2021-11-20 06:53:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_ldisc [2021-11-20 06:53:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure uart_add_one_port [2021-11-20 06:53:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_add_one_port [2021-11-20 06:53:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_port_size [2021-11-20 06:53:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_port_size [2021-11-20 06:53:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-20 06:53:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-20 06:53:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:53:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:53:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-20 06:53:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_dma [2021-11-20 06:53:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_dma [2021-11-20 06:53:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_put_poll_char [2021-11-20 06:53:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_put_poll_char [2021-11-20 06:53:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_dma [2021-11-20 06:53:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_dma [2021-11-20 06:53:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:53:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_empty [2021-11-20 06:53:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_empty [2021-11-20 06:53:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:53:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out [2021-11-20 06:53:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out [2021-11-20 06:53:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure disable_rsa [2021-11-20 06:53:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_rsa [2021-11-20 06:53:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_clear_fifos [2021-11-20 06:53:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_clear_fifos [2021-11-20 06:53:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure serial_out [2021-11-20 06:53:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_out [2021-11-20 06:53:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_write [2021-11-20 06:53:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_write [2021-11-20 06:53:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 06:53:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 06:53:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-20 06:53:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-20 06:53:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_poll_char [2021-11-20 06:53:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_poll_char [2021-11-20 06:53:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_probe [2021-11-20 06:53:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_probe [2021-11-20 06:53:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure serial_do_unlink [2021-11-20 06:53:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_do_unlink [2021-11-20 06:53:22,652 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_termios [2021-11-20 06:53:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_termios [2021-11-20 06:53:22,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 06:53:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 06:53:22,652 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_unregister_port [2021-11-20 06:53:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_unregister_port [2021-11-20 06:53:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_rx [2021-11-20 06:53:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_rx [2021-11-20 06:53:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 06:53:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 06:53:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_rsa_resource [2021-11-20 06:53:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_rsa_resource [2021-11-20 06:53:22,653 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 06:53:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 06:53:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_isa_init_ports [2021-11-20 06:53:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_isa_init_ports [2021-11-20 06:53:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 06:53:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 06:53:22,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 06:53:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 06:53:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure is_omap1_8250 [2021-11-20 06:53:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure is_omap1_8250 [2021-11-20 06:53:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2021-11-20 06:53:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2021-11-20 06:53:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_verify_port [2021-11-20 06:53:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_verify_port [2021-11-20 06:53:22,655 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 06:53:22,656 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 06:53:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2021-11-20 06:53:22,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2021-11-20 06:53:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-11-20 06:53:22,656 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-11-20 06:53:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_io_from_upio [2021-11-20 06:53:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure set_io_from_upio [2021-11-20 06:53:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-20 06:53:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-20 06:53:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 06:53:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 06:53:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure uart_remove_one_port [2021-11-20 06:53:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_remove_one_port [2021-11-20 06:53:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:53:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_suspend_port [2021-11-20 06:53:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_suspend_port [2021-11-20 06:53:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_dma [2021-11-20 06:53:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_dma [2021-11-20 06:53:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 06:53:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 06:53:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_mctrl [2021-11-20 06:53:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_mctrl [2021-11-20 06:53:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2021-11-20 06:53:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2021-11-20 06:53:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_rsa_resource [2021-11-20 06:53:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_rsa_resource [2021-11-20 06:53:22,659 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_request_slave_channel_compat [2021-11-20 06:53:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_request_slave_channel_compat [2021-11-20 06:53:22,660 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_std_resource [2021-11-20 06:53:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_std_resource [2021-11-20 06:53:22,660 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_tx_status [2021-11-20 06:53:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_tx_status [2021-11-20 06:53:22,660 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-20 06:53:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-20 06:53:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_in [2021-11-20 06:53:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_in [2021-11-20 06:53:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:53:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_type [2021-11-20 06:53:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_type [2021-11-20 06:53:22,661 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_register_8250_port [2021-11-20 06:53:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_register_8250_port [2021-11-20 06:53:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure uart_write_wakeup [2021-11-20 06:53:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_write_wakeup [2021-11-20 06:53:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 06:53:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 06:53:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 06:53:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 06:53:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_read [2021-11-20 06:53:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_read [2021-11-20 06:53:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_break_ctl [2021-11-20 06:53:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_break_ctl [2021-11-20 06:53:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:53:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pm [2021-11-20 06:53:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pm [2021-11-20 06:53:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-20 06:53:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-20 06:53:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_set_termios [2021-11-20 06:53:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_set_termios [2021-11-20 06:53:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:53:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure uart_tx_stopped [2021-11-20 06:53:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_tx_stopped [2021-11-20 06:53:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_xmitr [2021-11-20 06:53:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_xmitr [2021-11-20 06:53:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig [2021-11-20 06:53:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig [2021-11-20 06:53:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_read [2021-11-20 06:53:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_read [2021-11-20 06:53:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 06:53:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 06:53:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:53:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-20 06:53:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-20 06:53:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-20 06:53:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-20 06:53:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:53:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:53:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 06:53:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 06:53:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_remove [2021-11-20 06:53:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_remove [2021-11-20 06:53:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-20 06:53:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-20 06:53:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure uart_handle_break [2021-11-20 06:53:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_handle_break [2021-11-20 06:53:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:53:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:53:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure serial_index [2021-11-20 06:53:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_index [2021-11-20 06:53:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_rx_complete [2021-11-20 06:53:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_rx_complete [2021-11-20 06:53:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure dma_async_issue_pending [2021-11-20 06:53:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_async_issue_pending [2021-11-20 06:53:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure __stop_tx [2021-11-20 06:53:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __stop_tx [2021-11-20 06:53:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2021-11-20 06:53:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2021-11-20 06:53:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_config_port [2021-11-20 06:53:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_config_port [2021-11-20 06:53:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 06:53:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 06:53:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 06:53:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 06:53:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume [2021-11-20 06:53:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume [2021-11-20 06:53:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_shutdown [2021-11-20 06:53:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_shutdown [2021-11-20 06:53:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 06:53:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 06:53:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_has_efr [2021-11-20 06:53:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_has_efr [2021-11-20 06:53:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure __enable_rsa [2021-11-20 06:53:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __enable_rsa [2021-11-20 06:53:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_resume [2021-11-20 06:53:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_resume [2021-11-20 06:53:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_std_resource [2021-11-20 06:53:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_std_resource [2021-11-20 06:53:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-20 06:53:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-20 06:53:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_slave_config [2021-11-20 06:53:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_slave_config [2021-11-20 06:53:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_dma [2021-11-20 06:53:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_dma [2021-11-20 06:53:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 06:53:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 06:53:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-20 06:53:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-20 06:53:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume_port [2021-11-20 06:53:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume_port [2021-11-20 06:53:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure ns16550a_goto_highspeed [2021-11-20 06:53:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ns16550a_goto_highspeed [2021-11-20 06:53:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure size_fifo [2021-11-20 06:53:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure size_fifo [2021-11-20 06:53:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_drvdata [2021-11-20 06:53:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_drvdata [2021-11-20 06:53:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_remove [2021-11-20 06:53:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_remove [2021-11-20 06:53:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:53:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_port [2021-11-20 06:53:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_port [2021-11-20 06:53:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-20 06:53:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-20 06:53:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_enable_ms [2021-11-20 06:53:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_enable_ms [2021-11-20 06:53:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_terminate_all [2021-11-20 06:53:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_terminate_all [2021-11-20 06:53:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2021-11-20 06:53:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2021-11-20 06:53:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_sleep [2021-11-20 06:53:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_sleep [2021-11-20 06:53:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_init_fixed_type_port [2021-11-20 06:53:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_init_fixed_type_port [2021-11-20 06:53:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:53:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:53:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-20 06:53:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-20 06:53:23,591 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:53:23,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:53:24,603 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 06:53:43,941 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:53:43,979 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:53:43,979 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:53:43,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:53:43 BoogieIcfgContainer [2021-11-20 06:53:43,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:53:43,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:53:43,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:53:43,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:53:43,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:53:17" (1/3) ... [2021-11-20 06:53:43,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6056508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:53:43, skipping insertion in model container [2021-11-20 06:53:43,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:53:21" (2/3) ... [2021-11-20 06:53:43,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6056508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:53:43, skipping insertion in model container [2021-11-20 06:53:43,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:53:43" (3/3) ... [2021-11-20 06:53:43,995 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2021-11-20 06:53:44,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:53:44,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:53:44,077 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:53:44,085 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:53:44,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:53:44,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 2606 states, 1770 states have (on average 1.3644067796610169) internal successors, (2415), 1862 states have internal predecessors, (2415), 687 states have call successors, (687), 148 states have call predecessors, (687), 147 states have return successors, (680), 652 states have call predecessors, (680), 680 states have call successors, (680) [2021-11-20 06:53:44,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-20 06:53:44,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:53:44,239 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:53:44,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:53:44,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:53:44,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1178533725, now seen corresponding path program 1 times [2021-11-20 06:53:44,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:53:44,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370862737] [2021-11-20 06:53:44,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:53:44,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:53:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:53:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:53:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:53:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:53:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:53:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:53:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:53:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:53:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 06:53:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:53:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:53:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 06:53:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:53:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:53:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 06:53:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:53:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:53:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:53:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:53:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-20 06:53:45,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:53:45,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370862737] [2021-11-20 06:53:45,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370862737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:53:45,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:53:45,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:53:45,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045846643] [2021-11-20 06:53:45,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:53:45,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:53:45,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:53:45,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:53:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:53:45,925 INFO L87 Difference]: Start difference. First operand has 2606 states, 1770 states have (on average 1.3644067796610169) internal successors, (2415), 1862 states have internal predecessors, (2415), 687 states have call successors, (687), 148 states have call predecessors, (687), 147 states have return successors, (680), 652 states have call predecessors, (680), 680 states have call successors, (680) Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:53:51,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:53:54,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:53:57,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:00,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:06,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:08,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:10,171 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:12,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:17,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:19,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:23,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:25,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:32,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:34,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:36,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:39,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:41,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:43,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:48,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:50,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:54:53,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:54:53,245 INFO L93 Difference]: Finished difference Result 8163 states and 12416 transitions. [2021-11-20 06:54:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:54:53,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 164 [2021-11-20 06:54:53,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:54:53,352 INFO L225 Difference]: With dead ends: 8163 [2021-11-20 06:54:53,352 INFO L226 Difference]: Without dead ends: 5507 [2021-11-20 06:54:53,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:54:53,387 INFO L933 BasicCegarLoop]: 4272 mSDtfsCounter, 4524 mSDsluCounter, 7628 mSDsCounter, 0 mSdLazyCounter, 7219 mSolverCounterSat, 2116 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4962 SdHoareTripleChecker+Valid, 11900 SdHoareTripleChecker+Invalid, 9355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2116 IncrementalHoareTripleChecker+Valid, 7219 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:54:53,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4962 Valid, 11900 Invalid, 9355 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2116 Valid, 7219 Invalid, 20 Unknown, 0 Unchecked, 66.2s Time] [2021-11-20 06:54:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2021-11-20 06:54:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 4374. [2021-11-20 06:54:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4374 states, 3010 states have (on average 1.3425249169435216) internal successors, (4041), 3144 states have internal predecessors, (4041), 1090 states have call successors, (1090), 271 states have call predecessors, (1090), 273 states have return successors, (1102), 1046 states have call predecessors, (1102), 1089 states have call successors, (1102) [2021-11-20 06:54:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 6233 transitions. [2021-11-20 06:54:54,107 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 6233 transitions. Word has length 164 [2021-11-20 06:54:54,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:54:54,108 INFO L470 AbstractCegarLoop]: Abstraction has 4374 states and 6233 transitions. [2021-11-20 06:54:54,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:54:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 6233 transitions. [2021-11-20 06:54:54,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 06:54:54,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:54:54,135 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:54:54,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:54:54,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:54:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:54:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash 370686232, now seen corresponding path program 1 times [2021-11-20 06:54:54,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:54:54,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749519808] [2021-11-20 06:54:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:54:54,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:54:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:54:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:54:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:54:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:54:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-20 06:54:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:54:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:54:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:54:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:54:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:54:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:54:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 06:54:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:54:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:54:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-20 06:54:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:54:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:54:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 06:54:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:54:55,709 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-20 06:54:55,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:54:55,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749519808] [2021-11-20 06:54:55,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749519808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:54:55,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:54:55,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:54:55,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440278568] [2021-11-20 06:54:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:54:55,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:54:55,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:54:55,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:54:55,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:54:55,717 INFO L87 Difference]: Start difference. First operand 4374 states and 6233 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:55:02,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:04,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:06,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:10,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:19,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:23,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:25,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:29,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:37,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:39,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:41,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:43,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:46,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:48,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:52,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:55:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:55:58,352 INFO L93 Difference]: Finished difference Result 11992 states and 19758 transitions. [2021-11-20 06:55:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:55:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 167 [2021-11-20 06:55:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:55:58,463 INFO L225 Difference]: With dead ends: 11992 [2021-11-20 06:55:58,463 INFO L226 Difference]: Without dead ends: 11989 [2021-11-20 06:55:58,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:55:58,473 INFO L933 BasicCegarLoop]: 5295 mSDtfsCounter, 13700 mSDsluCounter, 7786 mSDsCounter, 0 mSdLazyCounter, 12230 mSolverCounterSat, 11102 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14258 SdHoareTripleChecker+Valid, 13081 SdHoareTripleChecker+Invalid, 23345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11102 IncrementalHoareTripleChecker+Valid, 12230 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:55:58,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14258 Valid, 13081 Invalid, 23345 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11102 Valid, 12230 Invalid, 13 Unknown, 0 Unchecked, 61.4s Time] [2021-11-20 06:55:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11989 states. [2021-11-20 06:55:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11989 to 9584. [2021-11-20 06:55:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9584 states, 6527 states have (on average 1.3350697104335836) internal successors, (8714), 6801 states have internal predecessors, (8714), 2419 states have call successors, (2419), 524 states have call predecessors, (2419), 637 states have return successors, (3488), 2446 states have call predecessors, (3488), 2418 states have call successors, (3488) [2021-11-20 06:55:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9584 states to 9584 states and 14621 transitions. [2021-11-20 06:55:59,426 INFO L78 Accepts]: Start accepts. Automaton has 9584 states and 14621 transitions. Word has length 167 [2021-11-20 06:55:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:55:59,429 INFO L470 AbstractCegarLoop]: Abstraction has 9584 states and 14621 transitions. [2021-11-20 06:55:59,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:55:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9584 states and 14621 transitions. [2021-11-20 06:55:59,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-20 06:55:59,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:55:59,475 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:55:59,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:55:59,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:55:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash -696347584, now seen corresponding path program 1 times [2021-11-20 06:55:59,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:59,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983668623] [2021-11-20 06:55:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:59,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:56:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:56:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:56:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:56:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-20 06:56:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:56:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:56:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 06:56:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-20 06:56:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:56:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:56:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:56:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:56:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:56:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 06:56:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 06:56:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-20 06:56:00,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:56:00,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983668623] [2021-11-20 06:56:00,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983668623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:56:00,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:56:00,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:56:00,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387342391] [2021-11-20 06:56:00,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:56:00,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:56:00,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:56:00,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:56:00,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:56:00,598 INFO L87 Difference]: Start difference. First operand 9584 states and 14621 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:56:07,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:09,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:11,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:13,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:15,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:17,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:20,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:22,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:24,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:31,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:34,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:39,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:41,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:43,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:45,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:47,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:49,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:53,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:56:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:56:55,686 INFO L93 Difference]: Finished difference Result 22067 states and 35950 transitions. [2021-11-20 06:56:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:56:55,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 231 [2021-11-20 06:56:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:56:55,799 INFO L225 Difference]: With dead ends: 22067 [2021-11-20 06:56:55,799 INFO L226 Difference]: Without dead ends: 12493 [2021-11-20 06:56:55,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:56:55,870 INFO L933 BasicCegarLoop]: 3951 mSDtfsCounter, 3084 mSDsluCounter, 10829 mSDsCounter, 0 mSdLazyCounter, 8270 mSolverCounterSat, 2586 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3385 SdHoareTripleChecker+Valid, 14780 SdHoareTripleChecker+Invalid, 10872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2586 IncrementalHoareTripleChecker+Valid, 8270 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:56:55,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3385 Valid, 14780 Invalid, 10872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2586 Valid, 8270 Invalid, 16 Unknown, 0 Unchecked, 54.1s Time] [2021-11-20 06:56:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12493 states. [2021-11-20 06:56:56,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12493 to 9585. [2021-11-20 06:56:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9585 states, 6526 states have (on average 1.3351210542445602) internal successors, (8713), 6803 states have internal predecessors, (8713), 2419 states have call successors, (2419), 524 states have call predecessors, (2419), 639 states have return successors, (3486), 2445 states have call predecessors, (3486), 2418 states have call successors, (3486) [2021-11-20 06:56:56,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9585 states to 9585 states and 14618 transitions. [2021-11-20 06:56:56,926 INFO L78 Accepts]: Start accepts. Automaton has 9585 states and 14618 transitions. Word has length 231 [2021-11-20 06:56:56,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:56:56,926 INFO L470 AbstractCegarLoop]: Abstraction has 9585 states and 14618 transitions. [2021-11-20 06:56:56,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:56:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9585 states and 14618 transitions. [2021-11-20 06:56:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 06:56:56,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:56:56,973 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:56:56,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:56:56,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:56:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:56:56,974 INFO L85 PathProgramCache]: Analyzing trace with hash -701213330, now seen corresponding path program 1 times [2021-11-20 06:56:56,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:56:56,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976162790] [2021-11-20 06:56:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:56:56,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:56:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:56:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:56:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:56:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:56:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:56:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:56:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:56:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 06:56:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 06:56:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:56:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:56:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:56:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:56:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:56:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:56:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 06:56:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:56:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-20 06:56:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-20 06:56:58,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:56:58,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976162790] [2021-11-20 06:56:58,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976162790] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:56:58,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157501784] [2021-11-20 06:56:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:56:58,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:56:58,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:56:58,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:56:58,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:56:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:56:59,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 7803 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:56:59,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:57:00,497 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 21 treesize of output 9 [2021-11-20 06:57:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-20 06:57:00,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:57:00,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157501784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:57:00,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:57:00,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-20 06:57:00,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755413477] [2021-11-20 06:57:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:57:00,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:57:00,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:57:00,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:57:00,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:57:00,607 INFO L87 Difference]: Start difference. First operand 9585 states and 14618 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:57:06,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:08,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:10,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:12,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:14,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:16,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:19,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:21,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:23,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:25,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:27,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:29,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:31,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:33,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:33,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:57:33,789 INFO L93 Difference]: Finished difference Result 19179 states and 29471 transitions. [2021-11-20 06:57:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:57:33,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 232 [2021-11-20 06:57:33,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:57:33,856 INFO L225 Difference]: With dead ends: 19179 [2021-11-20 06:57:33,856 INFO L226 Difference]: Without dead ends: 9605 [2021-11-20 06:57:33,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:57:33,913 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 1 mSDsluCounter, 10432 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14159 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:57:33,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 14159 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 760 Invalid, 11 Unknown, 0 Unchecked, 32.7s Time] [2021-11-20 06:57:33,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9605 states. [2021-11-20 06:57:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9605 to 9597. [2021-11-20 06:57:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 6538 states have (on average 1.334811869073111) internal successors, (8727), 6815 states have internal predecessors, (8727), 2419 states have call successors, (2419), 524 states have call predecessors, (2419), 639 states have return successors, (3486), 2445 states have call predecessors, (3486), 2418 states have call successors, (3486) [2021-11-20 06:57:34,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 14632 transitions. [2021-11-20 06:57:34,681 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 14632 transitions. Word has length 232 [2021-11-20 06:57:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:57:34,684 INFO L470 AbstractCegarLoop]: Abstraction has 9597 states and 14632 transitions. [2021-11-20 06:57:34,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 06:57:34,684 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 14632 transitions. [2021-11-20 06:57:34,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-20 06:57:34,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:57:34,759 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:34,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:57:34,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:57:34,985 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:57:34,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:57:34,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1958894701, now seen corresponding path program 1 times [2021-11-20 06:57:34,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:57:34,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566598886] [2021-11-20 06:57:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:57:34,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:57:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:57:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:57:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:57:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:57:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 06:57:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 06:57:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:57:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:57:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 06:57:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:57:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 06:57:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:57:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 06:57:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:57:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:57:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:57:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:57:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:57:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:57:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 06:57:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:57:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-20 06:57:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 06:57:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 06:57:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 06:57:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:57:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-11-20 06:57:36,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:57:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566598886] [2021-11-20 06:57:36,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566598886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:57:36,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:57:36,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 06:57:36,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834882421] [2021-11-20 06:57:36,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:57:36,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:57:36,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:57:36,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:57:36,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:57:36,109 INFO L87 Difference]: Start difference. First operand 9597 states and 14632 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-20 06:57:40,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:43,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:45,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:47,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:49,854 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:51,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:53,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:55,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:57:58,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:01,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:03,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:05,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:07,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:09,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:17,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:19,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:21,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:24,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:26,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:32,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:34,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:36,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:38,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:40,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:42,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:44,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:46,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:48,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:51,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:54,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:58:56,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:03,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:14,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:16,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:18,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:20,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:22,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:24,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:27,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:29,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:38,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:59:38,241 INFO L93 Difference]: Finished difference Result 34605 states and 62836 transitions. [2021-11-20 06:59:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 06:59:38,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 280 [2021-11-20 06:59:38,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:59:38,601 INFO L225 Difference]: With dead ends: 34605 [2021-11-20 06:59:38,602 INFO L226 Difference]: Without dead ends: 25019 [2021-11-20 06:59:38,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:59:38,690 INFO L933 BasicCegarLoop]: 4575 mSDtfsCounter, 13316 mSDsluCounter, 16473 mSDsCounter, 0 mSdLazyCounter, 20265 mSolverCounterSat, 10665 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13796 SdHoareTripleChecker+Valid, 21048 SdHoareTripleChecker+Invalid, 30965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 10665 IncrementalHoareTripleChecker+Valid, 20265 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:59:38,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13796 Valid, 21048 Invalid, 30965 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [10665 Valid, 20265 Invalid, 35 Unknown, 0 Unchecked, 119.6s Time] [2021-11-20 06:59:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25019 states. [2021-11-20 06:59:40,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25019 to 20984. [2021-11-20 06:59:41,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20984 states, 14265 states have (on average 1.3286365229582895) internal successors, (18953), 14827 states have internal predecessors, (18953), 5268 states have call successors, (5268), 1051 states have call predecessors, (5268), 1450 states have return successors, (10775), 5516 states have call predecessors, (10775), 5267 states have call successors, (10775) [2021-11-20 06:59:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20984 states to 20984 states and 34996 transitions. [2021-11-20 06:59:41,297 INFO L78 Accepts]: Start accepts. Automaton has 20984 states and 34996 transitions. Word has length 280 [2021-11-20 06:59:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:59:41,298 INFO L470 AbstractCegarLoop]: Abstraction has 20984 states and 34996 transitions. [2021-11-20 06:59:41,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-20 06:59:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 20984 states and 34996 transitions. [2021-11-20 06:59:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-20 06:59:41,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:59:41,353 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:59:41,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:59:41,353 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:59:41,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:59:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash -935977422, now seen corresponding path program 1 times [2021-11-20 06:59:41,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:59:41,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138144977] [2021-11-20 06:59:41,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:41,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:59:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:59:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:59:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:59:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:59:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:59:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:59:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:59:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:59:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:59:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 06:59:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:59:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 06:59:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:59:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:59:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:59:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:59:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:59:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:59:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:59:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:59:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 06:59:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:59:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 06:59:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-20 06:59:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 06:59:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-20 06:59:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:43,006 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-11-20 06:59:43,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:59:43,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138144977] [2021-11-20 06:59:43,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138144977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:59:43,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799739509] [2021-11-20 06:59:43,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:43,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:59:43,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:59:43,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:59:43,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:59:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:44,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 8135 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-20 06:59:45,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:59:45,515 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 9 treesize of output 3 [2021-11-20 06:59:45,618 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 9 treesize of output 3 [2021-11-20 06:59:46,058 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 19 treesize of output 7 [2021-11-20 06:59:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 99 proven. 48 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-20 06:59:46,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:59:46,774 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 9 treesize of output 3 [2021-11-20 06:59:47,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799739509] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:59:47,412 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:59:47,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-11-20 06:59:47,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536513627] [2021-11-20 06:59:47,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:59:47,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 06:59:47,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:59:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 06:59:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2021-11-20 06:59:47,417 INFO L87 Difference]: Start difference. First operand 20984 states and 34996 transitions. Second operand has 20 states, 17 states have (on average 14.0) internal successors, (238), 15 states have internal predecessors, (238), 8 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (43), 8 states have call predecessors, (43), 8 states have call successors, (43) [2021-11-20 07:00:03,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:05,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:07,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:09,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:11,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:13,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:16,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:18,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:20,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:21,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:23,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:25,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:32,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:34,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:36,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:38,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:40,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:42,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:44,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:46,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:49,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:51,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:53,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:55,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:58,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:00,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:02,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:17,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:19,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:20,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:23,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:25,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:31,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:34,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:36,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:37,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:38,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:40,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:42,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:45,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:47,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:56,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:58,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:00,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:02,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:04,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:06,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:08,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:10,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:14,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:16,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:18,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:20,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:22,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:24,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:26,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:28,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:37,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:39,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:41,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:43,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:53,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:02:53,028 INFO L93 Difference]: Finished difference Result 47611 states and 85590 transitions. [2021-11-20 07:02:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 07:02:53,030 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 14.0) internal successors, (238), 15 states have internal predecessors, (238), 8 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (43), 8 states have call predecessors, (43), 8 states have call successors, (43) Word has length 272 [2021-11-20 07:02:53,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:02:53,493 INFO L225 Difference]: With dead ends: 47611 [2021-11-20 07:02:53,493 INFO L226 Difference]: Without dead ends: 26637 [2021-11-20 07:02:53,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=336, Invalid=1470, Unknown=0, NotChecked=0, Total=1806 [2021-11-20 07:02:53,758 INFO L933 BasicCegarLoop]: 4048 mSDtfsCounter, 4355 mSDsluCounter, 28415 mSDsCounter, 0 mSdLazyCounter, 35470 mSolverCounterSat, 4054 mSolverCounterUnsat, 53 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4561 SdHoareTripleChecker+Valid, 32463 SdHoareTripleChecker+Invalid, 39577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 4054 IncrementalHoareTripleChecker+Valid, 35470 IncrementalHoareTripleChecker+Invalid, 53 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:02:53,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4561 Valid, 32463 Invalid, 39577 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [4054 Valid, 35470 Invalid, 53 Unknown, 0 Unchecked, 182.2s Time] [2021-11-20 07:02:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26637 states. [2021-11-20 07:02:56,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26637 to 21732. [2021-11-20 07:02:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21732 states, 14751 states have (on average 1.3262151718527557) internal successors, (19563), 15315 states have internal predecessors, (19563), 5496 states have call successors, (5496), 1067 states have call predecessors, (5496), 1484 states have return successors, (11619), 5756 states have call predecessors, (11619), 5495 states have call successors, (11619) [2021-11-20 07:02:56,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21732 states to 21732 states and 36678 transitions. [2021-11-20 07:02:56,574 INFO L78 Accepts]: Start accepts. Automaton has 21732 states and 36678 transitions. Word has length 272 [2021-11-20 07:02:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:02:56,575 INFO L470 AbstractCegarLoop]: Abstraction has 21732 states and 36678 transitions. [2021-11-20 07:02:56,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 14.0) internal successors, (238), 15 states have internal predecessors, (238), 8 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (43), 8 states have call predecessors, (43), 8 states have call successors, (43) [2021-11-20 07:02:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 21732 states and 36678 transitions. [2021-11-20 07:02:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-20 07:02:56,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:02:56,620 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:56,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:56,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:02:56,837 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:02:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash -813946535, now seen corresponding path program 1 times [2021-11-20 07:02:56,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:56,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414376474] [2021-11-20 07:02:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:56,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:02:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 07:02:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:02:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 07:02:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 07:02:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:02:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 07:02:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 07:02:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 07:02:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:02:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 07:02:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 07:02:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:02:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:02:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 07:02:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:02:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:02:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 07:02:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 07:02:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 07:02:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-20 07:02:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-20 07:02:58,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:02:58,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414376474] [2021-11-20 07:02:58,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414376474] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:02:58,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786501883] [2021-11-20 07:02:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:58,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:02:58,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:58,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:02:58,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b693b57f-4ed8-46f1-bdd7-3e9fce2289b3/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:02:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:00,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 7811 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-20 07:03:00,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:01,041 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 9 treesize of output 3 [2021-11-20 07:03:01,162 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 9 treesize of output 3 [2021-11-20 07:03:01,299 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 9 treesize of output 3 [2021-11-20 07:03:01,953 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 19 treesize of output 7 [2021-11-20 07:03:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 67 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-20 07:03:02,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:03:02,916 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 9 treesize of output 3 [2021-11-20 07:03:03,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786501883] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:03:03,614 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:03:03,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-11-20 07:03:03,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095135102] [2021-11-20 07:03:03,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:03:03,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-20 07:03:03,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:03,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-20 07:03:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=775, Unknown=0, NotChecked=0, Total=870 [2021-11-20 07:03:03,618 INFO L87 Difference]: Start difference. First operand 21732 states and 36678 transitions. Second operand has 26 states, 22 states have (on average 11.045454545454545) internal successors, (243), 19 states have internal predecessors, (243), 10 states have call successors, (54), 10 states have call predecessors, (54), 8 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2021-11-20 07:03:33,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:35,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:36,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:38,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:40,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:42,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:44,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:47,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:49,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:51,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:53,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:56,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:58,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:00,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:02,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:05,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:07,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:08,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:09,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:11,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:21,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:23,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:25,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:27,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:29,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:31,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:33,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:35,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:37,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:39,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:41,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:43,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:45,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:47,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:49,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:53,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:55,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:58,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:00,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:02,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:04,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:06,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:08,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:37,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:40,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:42,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:44,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:47,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:49,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:51,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:52,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:54,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:57,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:00,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:02,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:04,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:07,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:09,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:10,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:12,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:14,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:15,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:17,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:22,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []