./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.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_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/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_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/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_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/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 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:09:46,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:09:46,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:09:46,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:09:46,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:09:46,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:09:46,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:09:46,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:09:46,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:09:46,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:09:46,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:09:46,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:09:46,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:09:46,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:09:46,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:09:46,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:09:46,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:09:46,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:09:46,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:09:46,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:09:46,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:09:46,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:09:46,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:09:46,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:09:46,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:09:46,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:09:46,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:09:46,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:09:46,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:09:46,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:09:46,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:09:46,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:09:46,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:09:46,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:09:46,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:09:46,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:09:46,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:09:46,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:09:46,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:09:46,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:09:46,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:09:46,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:09:46,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:09:46,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:09:46,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:09:46,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:09:46,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:09:46,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:09:46,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:09:46,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:09:46,204 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:09:46,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:09:46,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:09:46,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:09:46,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:09:46,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:09:46,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:09:46,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:09:46,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:09:46,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:09:46,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:09:46,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:09:46,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:09:46,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:09:46,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:09:46,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:09:46,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:09:46,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:09:46,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:09:46,208 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:09:46,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:09:46,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:09:46,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:09:46,208 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_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 [2021-11-20 07:09:46,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:09:46,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:09:46,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:09:46,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:09:46,464 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:09:46,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-20 07:09:46,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/data/a5f56e26d/b7c35a27dfcd4c0d87fd8072d86c8456/FLAGe9ecbd515 [2021-11-20 07:09:47,512 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:09:47,513 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-20 07:09:47,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/data/a5f56e26d/b7c35a27dfcd4c0d87fd8072d86c8456/FLAGe9ecbd515 [2021-11-20 07:09:47,861 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/data/a5f56e26d/b7c35a27dfcd4c0d87fd8072d86c8456 [2021-11-20 07:09:47,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:09:47,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:09:47,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:09:47,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:09:47,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:09:47,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:09:47" (1/1) ... [2021-11-20 07:09:47,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c28ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:47, skipping insertion in model container [2021-11-20 07:09:47,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:09:47" (1/1) ... [2021-11-20 07:09:47,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:09:48,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:09:52,020 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_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i[376341,376354] [2021-11-20 07:09:52,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:09:52,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:09:52,706 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_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i[376341,376354] [2021-11-20 07:09:52,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:09:53,053 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:09:53,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53 WrapperNode [2021-11-20 07:09:53,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:09:53,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:09:53,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:09:53,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:09:53,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:53,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:53,570 INFO L137 Inliner]: procedures = 595, calls = 3937, calls flagged for inlining = 264, calls inlined = 257, statements flattened = 9795 [2021-11-20 07:09:53,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:09:53,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:09:53,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:09:53,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:09:53,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:53,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:53,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:53,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:53,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:54,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:54,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:54,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:09:54,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:09:54,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:09:54,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:09:54,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (1/1) ... [2021-11-20 07:09:54,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:09:54,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:54,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:54,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:09:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-11-20 07:09:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-11-20 07:09:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-11-20 07:09:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-11-20 07:09:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 07:09:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 07:09:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-11-20 07:09:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-11-20 07:09:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-11-20 07:09:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-11-20 07:09:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-11-20 07:09:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-11-20 07:09:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-11-20 07:09:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-11-20 07:09:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-20 07:09:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-11-20 07:09:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-11-20 07:09:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-11-20 07:09:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-11-20 07:09:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-11-20 07:09:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-11-20 07:09:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:09:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:09:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-11-20 07:09:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-11-20 07:09:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-11-20 07:09:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-11-20 07:09:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-11-20 07:09:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-11-20 07:09:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-20 07:09:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-20 07:09:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-11-20 07:09:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-11-20 07:09:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-11-20 07:09:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-11-20 07:09:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:09:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:09:54,323 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-11-20 07:09:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-11-20 07:09:54,323 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-11-20 07:09:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-11-20 07:09:54,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-11-20 07:09:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-11-20 07:09:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-11-20 07:09:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-11-20 07:09:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-11-20 07:09:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-11-20 07:09:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-11-20 07:09:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-20 07:09:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-20 07:09:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-20 07:09:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-20 07:09:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-11-20 07:09:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-11-20 07:09:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-11-20 07:09:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-11-20 07:09:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:09:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:09:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-11-20 07:09:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-11-20 07:09:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-11-20 07:09:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-11-20 07:09:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 07:09:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 07:09:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-11-20 07:09:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-11-20 07:09:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-11-20 07:09:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-11-20 07:09:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-11-20 07:09:54,328 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-11-20 07:09:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-11-20 07:09:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-11-20 07:09:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-11-20 07:09:54,329 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-11-20 07:09:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-11-20 07:09:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-11-20 07:09:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 07:09:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 07:09:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-11-20 07:09:54,330 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-11-20 07:09:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-11-20 07:09:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-11-20 07:09:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-11-20 07:09:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-11-20 07:09:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-11-20 07:09:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-11-20 07:09:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-11-20 07:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-11-20 07:09:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-20 07:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-20 07:09:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-20 07:09:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-11-20 07:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-11-20 07:09:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-11-20 07:09:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-11-20 07:09:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:09:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:09:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 07:09:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 07:09:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-11-20 07:09:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-11-20 07:09:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:09:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-11-20 07:09:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-11-20 07:09:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-11-20 07:09:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-11-20 07:09:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 07:09:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 07:09:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-11-20 07:09:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-11-20 07:09:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-11-20 07:09:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-11-20 07:09:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 07:09:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 07:09:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-11-20 07:09:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-11-20 07:09:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:09:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-11-20 07:09:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-11-20 07:09:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-11-20 07:09:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-11-20 07:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 07:09:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 07:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-11-20 07:09:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-11-20 07:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-11-20 07:09:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-11-20 07:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-11-20 07:09:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-11-20 07:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-11-20 07:09:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-11-20 07:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-11-20 07:09:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-11-20 07:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-11-20 07:09:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-11-20 07:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-11-20 07:09:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-11-20 07:09:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-11-20 07:09:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-11-20 07:09:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:09:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:09:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-11-20 07:09:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-11-20 07:09:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-11-20 07:09:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-11-20 07:09:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-11-20 07:09:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-11-20 07:09:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-20 07:09:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-20 07:09:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-11-20 07:09:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-11-20 07:09:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-11-20 07:09:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-11-20 07:09:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 07:09:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 07:09:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-11-20 07:09:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-11-20 07:09:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-11-20 07:09:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-11-20 07:09:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_12 [2021-11-20 07:09:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_12 [2021-11-20 07:09:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 07:09:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 07:09:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-11-20 07:09:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-11-20 07:09:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-11-20 07:09:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-11-20 07:09:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-11-20 07:09:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-11-20 07:09:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:09:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-11-20 07:09:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-11-20 07:09:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-11-20 07:09:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-11-20 07:09:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 07:09:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 07:09:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:09:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-11-20 07:09:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-11-20 07:09:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-20 07:09:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-20 07:09:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-11-20 07:09:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-11-20 07:09:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:09:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:09:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:09:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-11-20 07:09:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-11-20 07:09:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-20 07:09:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-20 07:09:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-11-20 07:09:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-11-20 07:09:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-11-20 07:09:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-11-20 07:09:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-11-20 07:09:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-11-20 07:09:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-20 07:09:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-20 07:09:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-11-20 07:09:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-11-20 07:09:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-11-20 07:09:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-11-20 07:09:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 07:09:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 07:09:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-11-20 07:09:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-11-20 07:09:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-11-20 07:09:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-11-20 07:09:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 07:09:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 07:09:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-11-20 07:09:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-11-20 07:09:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-11-20 07:09:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-11-20 07:09:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-11-20 07:09:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-11-20 07:09:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-11-20 07:09:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-11-20 07:09:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-11-20 07:09:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-11-20 07:09:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-20 07:09:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-20 07:09:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-11-20 07:09:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-11-20 07:09:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 07:09:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 07:09:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 07:09:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 07:09:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-11-20 07:09:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-11-20 07:09:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-11-20 07:09:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-11-20 07:09:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-11-20 07:09:54,357 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-11-20 07:09:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-11-20 07:09:54,357 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-11-20 07:09:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 07:09:54,357 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 07:09:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-11-20 07:09:54,357 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-11-20 07:09:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:09:54,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:09:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-11-20 07:09:54,358 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-11-20 07:09:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 07:09:54,358 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 07:09:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_11 [2021-11-20 07:09:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_11 [2021-11-20 07:09:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-11-20 07:09:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-11-20 07:09:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-11-20 07:09:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-11-20 07:09:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-20 07:09:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-20 07:09:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-11-20 07:09:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-11-20 07:09:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-11-20 07:09:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-11-20 07:09:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-11-20 07:09:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-11-20 07:09:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:09:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:09:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:09:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:09:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-11-20 07:09:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-11-20 07:09:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-11-20 07:09:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-11-20 07:09:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-11-20 07:09:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-11-20 07:09:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-11-20 07:09:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-11-20 07:09:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-11-20 07:09:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-11-20 07:09:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-11-20 07:09:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-11-20 07:09:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-11-20 07:09:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-11-20 07:09:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-11-20 07:09:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-11-20 07:09:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-20 07:09:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-20 07:09:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-11-20 07:09:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-11-20 07:09:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-11-20 07:09:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-11-20 07:09:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-11-20 07:09:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-11-20 07:09:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-11-20 07:09:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-11-20 07:09:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 07:09:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 07:09:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-11-20 07:09:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-11-20 07:09:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 07:09:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 07:09:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-20 07:09:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-20 07:09:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-11-20 07:09:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-11-20 07:09:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 07:09:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 07:09:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:09:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:09:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-11-20 07:09:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-11-20 07:09:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 07:09:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 07:09:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-11-20 07:09:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-11-20 07:09:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-11-20 07:09:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-11-20 07:09:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-11-20 07:09:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-11-20 07:09:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-11-20 07:09:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-11-20 07:09:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 07:09:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 07:09:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-11-20 07:09:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-11-20 07:09:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-11-20 07:09:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-11-20 07:09:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-11-20 07:09:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-11-20 07:09:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-11-20 07:09:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-11-20 07:09:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-20 07:09:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-20 07:09:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:09:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 07:09:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 07:09:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-11-20 07:09:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-11-20 07:09:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-11-20 07:09:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-11-20 07:09:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:09:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-11-20 07:09:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-11-20 07:09:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-20 07:09:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-20 07:09:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-11-20 07:09:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-11-20 07:09:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-11-20 07:09:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-11-20 07:09:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-20 07:09:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-20 07:09:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-11-20 07:09:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-11-20 07:09:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-11-20 07:09:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-11-20 07:09:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-11-20 07:09:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-11-20 07:09:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:09:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-11-20 07:09:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-11-20 07:09:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-11-20 07:09:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-11-20 07:09:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 07:09:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 07:09:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-20 07:09:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-20 07:09:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 07:09:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 07:09:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-11-20 07:09:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-11-20 07:09:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 07:09:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 07:09:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 07:09:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 07:09:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-11-20 07:09:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-11-20 07:09:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-11-20 07:09:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-11-20 07:09:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-11-20 07:09:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-11-20 07:09:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-20 07:09:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-20 07:09:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-11-20 07:09:54,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-11-20 07:09:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-11-20 07:09:54,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-11-20 07:09:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-11-20 07:09:54,380 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-11-20 07:09:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-11-20 07:09:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-11-20 07:09:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-11-20 07:09:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-11-20 07:09:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 07:09:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 07:09:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-11-20 07:09:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-11-20 07:09:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-11-20 07:09:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-11-20 07:09:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-11-20 07:09:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-11-20 07:09:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-11-20 07:09:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-11-20 07:09:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-11-20 07:09:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-11-20 07:09:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-11-20 07:09:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-11-20 07:09:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-11-20 07:09:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-11-20 07:09:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-11-20 07:09:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-11-20 07:09:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-11-20 07:09:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-11-20 07:09:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 07:09:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 07:09:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-11-20 07:09:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-11-20 07:09:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-11-20 07:09:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 07:09:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 07:09:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-11-20 07:09:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-11-20 07:09:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:09:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-11-20 07:09:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-11-20 07:09:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-11-20 07:09:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-11-20 07:09:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:09:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:09:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-11-20 07:09:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-11-20 07:09:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 07:09:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 07:09:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-11-20 07:09:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-11-20 07:09:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-11-20 07:09:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-11-20 07:09:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 07:09:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 07:09:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-11-20 07:09:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-11-20 07:09:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-11-20 07:09:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-11-20 07:09:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-11-20 07:09:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-11-20 07:09:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-11-20 07:09:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-11-20 07:09:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-11-20 07:09:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-11-20 07:09:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-20 07:09:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-20 07:09:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-11-20 07:09:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-11-20 07:09:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-11-20 07:09:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-11-20 07:09:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 07:09:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 07:09:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-11-20 07:09:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-11-20 07:09:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-11-20 07:09:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-11-20 07:09:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-20 07:09:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-20 07:09:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-11-20 07:09:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-11-20 07:09:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-11-20 07:09:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-11-20 07:09:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-11-20 07:09:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-11-20 07:09:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-20 07:09:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-20 07:09:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-11-20 07:09:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-11-20 07:09:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-20 07:09:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-20 07:09:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-11-20 07:09:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-11-20 07:09:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-11-20 07:09:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-11-20 07:09:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-11-20 07:09:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-11-20 07:09:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-11-20 07:09:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-11-20 07:09:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-11-20 07:09:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-11-20 07:09:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-11-20 07:09:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-11-20 07:09:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-11-20 07:09:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-11-20 07:09:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-11-20 07:09:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 07:09:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 07:09:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:09:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:09:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-11-20 07:09:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-11-20 07:09:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-11-20 07:09:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-11-20 07:09:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-11-20 07:09:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-11-20 07:09:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-11-20 07:09:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-11-20 07:09:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:09:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-11-20 07:09:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-11-20 07:09:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-11-20 07:09:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-11-20 07:09:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-11-20 07:09:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-11-20 07:09:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 07:09:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-11-20 07:09:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-11-20 07:09:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-11-20 07:09:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-11-20 07:09:55,847 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:09:55,857 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:09:56,706 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:10:08,059 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:10:08,088 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:10:08,088 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:10:08,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:10:08 BoogieIcfgContainer [2021-11-20 07:10:08,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:10:08,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:10:08,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:10:08,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:10:08,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:09:47" (1/3) ... [2021-11-20 07:10:08,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bd798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:10:08, skipping insertion in model container [2021-11-20 07:10:08,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:53" (2/3) ... [2021-11-20 07:10:08,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bd798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:10:08, skipping insertion in model container [2021-11-20 07:10:08,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:10:08" (3/3) ... [2021-11-20 07:10:08,104 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-20 07:10:08,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:10:08,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:10:08,174 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:10:08,180 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 07:10:08,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:10:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 3864 states, 2495 states have (on average 1.2749498997995992) internal successors, (3181), 2578 states have internal predecessors, (3181), 1124 states have call successors, (1124), 244 states have call predecessors, (1124), 243 states have return successors, (1118), 1089 states have call predecessors, (1118), 1118 states have call successors, (1118) [2021-11-20 07:10:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-20 07:10:08,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:10:08,296 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:08,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:10:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:10:08,302 INFO L85 PathProgramCache]: Analyzing trace with hash -901261265, now seen corresponding path program 1 times [2021-11-20 07:10:08,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:10:08,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071203236] [2021-11-20 07:10:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:10:08,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:10:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:10:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:10:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:10:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:10:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:10:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:10:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:10:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:10:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:10:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:10:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:10:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:10:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:10:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:10:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:10:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:10:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:10:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:10:09,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:10:09,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071203236] [2021-11-20 07:10:09,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071203236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:10:09,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:10:09,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:10:09,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865266570] [2021-11-20 07:10:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:10:09,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:10:09,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:10:09,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:10:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:10:09,909 INFO L87 Difference]: Start difference. First operand has 3864 states, 2495 states have (on average 1.2749498997995992) internal successors, (3181), 2578 states have internal predecessors, (3181), 1124 states have call successors, (1124), 244 states have call predecessors, (1124), 243 states have return successors, (1118), 1089 states have call predecessors, (1118), 1118 states have call successors, (1118) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:22,384 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 07:10:24,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:25,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:10:25,614 INFO L93 Difference]: Finished difference Result 8414 states and 12295 transitions. [2021-11-20 07:10:25,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:10:25,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-11-20 07:10:25,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:10:25,685 INFO L225 Difference]: With dead ends: 8414 [2021-11-20 07:10:25,685 INFO L226 Difference]: Without dead ends: 4534 [2021-11-20 07:10:25,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:10:25,730 INFO L933 BasicCegarLoop]: 4921 mSDtfsCounter, 4304 mSDsluCounter, 2154 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 5003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4411 SdHoareTripleChecker+Valid, 7075 SdHoareTripleChecker+Invalid, 7298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5003 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:10:25,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4411 Valid, 7075 Invalid, 7298 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5003 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2021-11-20 07:10:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2021-11-20 07:10:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 3843. [2021-11-20 07:10:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2482 states have (on average 1.2695406929895245) internal successors, (3151), 2557 states have internal predecessors, (3151), 1118 states have call successors, (1118), 243 states have call predecessors, (1118), 242 states have return successors, (1116), 1087 states have call predecessors, (1116), 1116 states have call successors, (1116) [2021-11-20 07:10:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5385 transitions. [2021-11-20 07:10:26,206 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5385 transitions. Word has length 253 [2021-11-20 07:10:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:10:26,207 INFO L470 AbstractCegarLoop]: Abstraction has 3843 states and 5385 transitions. [2021-11-20 07:10:26,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5385 transitions. [2021-11-20 07:10:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-20 07:10:26,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:10:26,214 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:26,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:10:26,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:10:26,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:10:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1699436963, now seen corresponding path program 1 times [2021-11-20 07:10:26,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:10:26,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364900579] [2021-11-20 07:10:26,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:10:26,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:10:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:10:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:10:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:10:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:10:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:10:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:10:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:10:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:10:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:10:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:10:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:10:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:10:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:10:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:10:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:10:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:10:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:10:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:10:27,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:10:27,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364900579] [2021-11-20 07:10:27,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364900579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:10:27,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:10:27,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:10:27,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885977986] [2021-11-20 07:10:27,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:10:27,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:10:27,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:10:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:10:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:10:27,189 INFO L87 Difference]: Start difference. First operand 3843 states and 5385 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:33,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:46,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:10:49,105 INFO L93 Difference]: Finished difference Result 12831 states and 18518 transitions. [2021-11-20 07:10:49,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:10:49,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-11-20 07:10:49,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:10:49,191 INFO L225 Difference]: With dead ends: 12831 [2021-11-20 07:10:49,191 INFO L226 Difference]: Without dead ends: 9021 [2021-11-20 07:10:49,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:10:49,225 INFO L933 BasicCegarLoop]: 6146 mSDtfsCounter, 13116 mSDsluCounter, 6790 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 10717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13829 SdHoareTripleChecker+Valid, 12936 SdHoareTripleChecker+Invalid, 15854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10717 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:10:49,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13829 Valid, 12936 Invalid, 15854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10717 Valid, 5137 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2021-11-20 07:10:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2021-11-20 07:10:49,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 7636. [2021-11-20 07:10:49,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7636 states, 4935 states have (on average 1.2705167173252279) internal successors, (6270), 5084 states have internal predecessors, (6270), 2216 states have call successors, (2216), 485 states have call predecessors, (2216), 484 states have return successors, (2216), 2156 states have call predecessors, (2216), 2214 states have call successors, (2216) [2021-11-20 07:10:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7636 states to 7636 states and 10702 transitions. [2021-11-20 07:10:49,832 INFO L78 Accepts]: Start accepts. Automaton has 7636 states and 10702 transitions. Word has length 253 [2021-11-20 07:10:49,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:10:49,835 INFO L470 AbstractCegarLoop]: Abstraction has 7636 states and 10702 transitions. [2021-11-20 07:10:49,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:49,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7636 states and 10702 transitions. [2021-11-20 07:10:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-20 07:10:49,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:10:49,861 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-20 07:10:49,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:10:49,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:10:49,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:10:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1091692974, now seen corresponding path program 1 times [2021-11-20 07:10:49,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:10:49,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138513920] [2021-11-20 07:10:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:10:49,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:10:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:10:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:10:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:10:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:10:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:10:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:10:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:10:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:10:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:10:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:10:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:10:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:10:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:10:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:10:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:10:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:10:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:10:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 07:10:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:10:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:10:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 07:10:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 07:10:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 07:10:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-20 07:10:50,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:10:50,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138513920] [2021-11-20 07:10:50,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138513920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:10:50,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:10:50,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:10:50,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523219386] [2021-11-20 07:10:50,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:10:50,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:10:50,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:10:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:10:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:10:50,848 INFO L87 Difference]: Start difference. First operand 7636 states and 10702 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 07:11:10,533 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 07:11:26,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:28,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:30,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:30,903 INFO L93 Difference]: Finished difference Result 26594 states and 38841 transitions. [2021-11-20 07:11:30,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:11:30,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 335 [2021-11-20 07:11:30,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:11:31,063 INFO L225 Difference]: With dead ends: 26594 [2021-11-20 07:11:31,064 INFO L226 Difference]: Without dead ends: 18997 [2021-11-20 07:11:31,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-11-20 07:11:31,116 INFO L933 BasicCegarLoop]: 5588 mSDtfsCounter, 13306 mSDsluCounter, 7420 mSDsCounter, 0 mSdLazyCounter, 9933 mSolverCounterSat, 12875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14447 SdHoareTripleChecker+Valid, 13008 SdHoareTripleChecker+Invalid, 22808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12875 IncrementalHoareTripleChecker+Valid, 9933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:11:31,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14447 Valid, 13008 Invalid, 22808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12875 Valid, 9933 Invalid, 0 Unknown, 0 Unchecked, 38.4s Time] [2021-11-20 07:11:31,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18997 states. [2021-11-20 07:11:32,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18997 to 13073. [2021-11-20 07:11:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13073 states, 8382 states have (on average 1.2581722739203054) internal successors, (10546), 8675 states have internal predecessors, (10546), 3781 states have call successors, (3781), 909 states have call predecessors, (3781), 909 states have return successors, (3783), 3662 states have call predecessors, (3783), 3779 states have call successors, (3783) [2021-11-20 07:11:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13073 states to 13073 states and 18110 transitions. [2021-11-20 07:11:32,588 INFO L78 Accepts]: Start accepts. Automaton has 13073 states and 18110 transitions. Word has length 335 [2021-11-20 07:11:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:11:32,589 INFO L470 AbstractCegarLoop]: Abstraction has 13073 states and 18110 transitions. [2021-11-20 07:11:32,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 07:11:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13073 states and 18110 transitions. [2021-11-20 07:11:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-20 07:11:32,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:11:32,603 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-20 07:11:32,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:11:32,603 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:11:32,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:32,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1123739714, now seen corresponding path program 1 times [2021-11-20 07:11:32,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:32,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699135606] [2021-11-20 07:11:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:32,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:11:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:11:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:11:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:11:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:11:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:11:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:11:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:11:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:11:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:11:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:11:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:11:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:11:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:11:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:11:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:11:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 07:11:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-20 07:11:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 07:11:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-20 07:11:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-20 07:11:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 07:11:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 07:11:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:11:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:33,586 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:11:33,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:33,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699135606] [2021-11-20 07:11:33,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699135606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:11:33,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576824267] [2021-11-20 07:11:33,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:33,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:33,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:11:33,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:11:33,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:11:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:35,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 3562 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:11:35,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:11:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:11:35,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:11:35,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576824267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:35,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:11:35,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-11-20 07:11:35,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048656418] [2021-11-20 07:11:35,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:35,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:11:35,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:11:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:11:35,691 INFO L87 Difference]: Start difference. First operand 13073 states and 18110 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-20 07:11:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:36,922 INFO L93 Difference]: Finished difference Result 26219 states and 36640 transitions. [2021-11-20 07:11:36,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:11:36,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 327 [2021-11-20 07:11:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:11:36,999 INFO L225 Difference]: With dead ends: 26219 [2021-11-20 07:11:36,999 INFO L226 Difference]: Without dead ends: 13185 [2021-11-20 07:11:37,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:11:37,069 INFO L933 BasicCegarLoop]: 5380 mSDtfsCounter, 22 mSDsluCounter, 16111 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:11:37,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 21491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:11:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2021-11-20 07:11:38,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 13185. [2021-11-20 07:11:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13185 states, 8458 states have (on average 1.25632537242847) internal successors, (10626), 8751 states have internal predecessors, (10626), 3809 states have call successors, (3809), 917 states have call predecessors, (3809), 917 states have return successors, (3811), 3690 states have call predecessors, (3811), 3807 states have call successors, (3811) [2021-11-20 07:11:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13185 states to 13185 states and 18246 transitions. [2021-11-20 07:11:38,506 INFO L78 Accepts]: Start accepts. Automaton has 13185 states and 18246 transitions. Word has length 327 [2021-11-20 07:11:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:11:38,512 INFO L470 AbstractCegarLoop]: Abstraction has 13185 states and 18246 transitions. [2021-11-20 07:11:38,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-20 07:11:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13185 states and 18246 transitions. [2021-11-20 07:11:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-11-20 07:11:38,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:11:38,536 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:38,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:11:38,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:38,759 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:11:38,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:38,760 INFO L85 PathProgramCache]: Analyzing trace with hash 178096419, now seen corresponding path program 1 times [2021-11-20 07:11:38,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:38,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459821847] [2021-11-20 07:11:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:38,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:11:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:11:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:11:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:11:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:11:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:11:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:11:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:11:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:11:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:11:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:11:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:11:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:11:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:11:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:11:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:11:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 07:11:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 07:11:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:11:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:11:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-20 07:11:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:11:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-20 07:11:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-20 07:11:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-20 07:11:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-20 07:11:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-20 07:11:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-11-20 07:11:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:11:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-11-20 07:11:39,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:39,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459821847] [2021-11-20 07:11:39,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459821847] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:11:39,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289303068] [2021-11-20 07:11:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:39,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:39,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:11:39,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:11:39,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:11:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:41,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 3810 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:11:41,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:11:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-11-20 07:11:42,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:11:42,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289303068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:42,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:11:42,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-11-20 07:11:42,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890571041] [2021-11-20 07:11:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:42,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:11:42,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:11:42,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:11:42,150 INFO L87 Difference]: Start difference. First operand 13185 states and 18246 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-20 07:11:43,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:43,267 INFO L93 Difference]: Finished difference Result 26463 states and 36968 transitions. [2021-11-20 07:11:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:11:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 362 [2021-11-20 07:11:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:11:43,456 INFO L225 Difference]: With dead ends: 26463 [2021-11-20 07:11:43,457 INFO L226 Difference]: Without dead ends: 13317 [2021-11-20 07:11:43,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:11:43,514 INFO L933 BasicCegarLoop]: 5381 mSDtfsCounter, 25 mSDsluCounter, 16117 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21498 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:11:43,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 21498 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:11:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13317 states. [2021-11-20 07:11:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13317 to 13309. [2021-11-20 07:11:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13309 states, 8542 states have (on average 1.2552095527979397) internal successors, (10722), 8835 states have internal predecessors, (10722), 3841 states have call successors, (3841), 925 states have call predecessors, (3841), 925 states have return successors, (3855), 3722 states have call predecessors, (3855), 3839 states have call successors, (3855) [2021-11-20 07:11:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13309 states to 13309 states and 18418 transitions. [2021-11-20 07:11:44,448 INFO L78 Accepts]: Start accepts. Automaton has 13309 states and 18418 transitions. Word has length 362 [2021-11-20 07:11:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:11:44,449 INFO L470 AbstractCegarLoop]: Abstraction has 13309 states and 18418 transitions. [2021-11-20 07:11:44,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-20 07:11:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13309 states and 18418 transitions. [2021-11-20 07:11:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-20 07:11:44,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:11:44,469 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-20 07:11:44,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:11:44,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:44,695 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:11:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:44,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1251783846, now seen corresponding path program 1 times [2021-11-20 07:11:44,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:44,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650321448] [2021-11-20 07:11:44,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:44,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:11:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:11:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:11:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:11:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:11:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:11:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:11:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:11:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:11:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:11:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:11:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:11:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:11:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:11:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:11:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:11:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 07:11:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-20 07:11:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 07:11:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 07:11:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:11:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 07:11:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 07:11:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 07:11:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-11-20 07:11:45,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:45,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650321448] [2021-11-20 07:11:45,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650321448] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:11:45,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359467556] [2021-11-20 07:11:45,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:45,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:45,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:11:45,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:11:45,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:11:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:47,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 4201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:11:47,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:11:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2021-11-20 07:11:47,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:11:47,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359467556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:47,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:11:47,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-11-20 07:11:47,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164403945] [2021-11-20 07:11:47,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:47,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:11:47,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:47,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:11:47,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:11:47,906 INFO L87 Difference]: Start difference. First operand 13309 states and 18418 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-20 07:11:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:49,478 INFO L93 Difference]: Finished difference Result 32840 states and 45410 transitions. [2021-11-20 07:11:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:11:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 393 [2021-11-20 07:11:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:11:49,587 INFO L225 Difference]: With dead ends: 32840 [2021-11-20 07:11:49,587 INFO L226 Difference]: Without dead ends: 19570 [2021-11-20 07:11:49,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:11:49,648 INFO L933 BasicCegarLoop]: 7285 mSDtfsCounter, 4966 mSDsluCounter, 4470 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 11755 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:11:49,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 11755 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:11:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19570 states. [2021-11-20 07:11:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19570 to 19556. [2021-11-20 07:11:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19556 states, 12590 states have (on average 1.253296266878475) internal successors, (15779), 13030 states have internal predecessors, (15779), 5582 states have call successors, (5582), 1383 states have call predecessors, (5582), 1383 states have return successors, (5602), 5404 states have call predecessors, (5602), 5580 states have call successors, (5602) [2021-11-20 07:11:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19556 states to 19556 states and 26963 transitions. [2021-11-20 07:11:51,257 INFO L78 Accepts]: Start accepts. Automaton has 19556 states and 26963 transitions. Word has length 393 [2021-11-20 07:11:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:11:51,258 INFO L470 AbstractCegarLoop]: Abstraction has 19556 states and 26963 transitions. [2021-11-20 07:11:51,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-20 07:11:51,258 INFO L276 IsEmpty]: Start isEmpty. Operand 19556 states and 26963 transitions. [2021-11-20 07:11:51,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-20 07:11:51,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:11:51,286 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:51,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:11:51,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 07:11:51,499 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:11:51,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:51,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2111277653, now seen corresponding path program 1 times [2021-11-20 07:11:51,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:51,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891586918] [2021-11-20 07:11:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:51,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:11:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:11:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:11:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:11:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:11:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:11:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:11:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:11:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:11:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:11:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:11:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:11:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:11:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:11:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:11:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:11:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 07:11:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-20 07:11:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 07:11:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-20 07:11:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-20 07:11:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 07:11:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 07:11:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 07:11:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 07:11:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2021-11-20 07:11:52,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:52,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891586918] [2021-11-20 07:11:52,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891586918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:11:52,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117223768] [2021-11-20 07:11:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:52,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:52,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:11:52,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:11:52,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:11:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:53,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 4359 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:11:53,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:11:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2021-11-20 07:11:54,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:11:54,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117223768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:54,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:11:54,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-11-20 07:11:54,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944778068] [2021-11-20 07:11:54,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:54,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:11:54,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:54,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:11:54,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:11:54,905 INFO L87 Difference]: Start difference. First operand 19556 states and 26963 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-20 07:11:56,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:56,637 INFO L93 Difference]: Finished difference Result 45246 states and 62384 transitions. [2021-11-20 07:11:56,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:11:56,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 418 [2021-11-20 07:11:56,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:11:56,773 INFO L225 Difference]: With dead ends: 45246 [2021-11-20 07:11:56,774 INFO L226 Difference]: Without dead ends: 25729 [2021-11-20 07:11:56,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:11:56,847 INFO L933 BasicCegarLoop]: 6596 mSDtfsCounter, 5008 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5008 SdHoareTripleChecker+Valid, 11050 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:11:56,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5008 Valid, 11050 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:11:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25729 states. [2021-11-20 07:11:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25729 to 25715. [2021-11-20 07:11:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25715 states, 16578 states have (on average 1.2533478103510676) internal successors, (20778), 17165 states have internal predecessors, (20778), 7303 states have call successors, (7303), 1833 states have call predecessors, (7303), 1833 states have return successors, (7329), 7066 states have call predecessors, (7329), 7301 states have call successors, (7329) [2021-11-20 07:11:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25715 states to 25715 states and 35410 transitions. [2021-11-20 07:11:58,592 INFO L78 Accepts]: Start accepts. Automaton has 25715 states and 35410 transitions. Word has length 418 [2021-11-20 07:11:58,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:11:58,593 INFO L470 AbstractCegarLoop]: Abstraction has 25715 states and 35410 transitions. [2021-11-20 07:11:58,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-20 07:11:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 25715 states and 35410 transitions. [2021-11-20 07:11:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-20 07:11:58,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:11:58,625 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:58,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:11:58,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:58,839 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:11:58,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash -870746568, now seen corresponding path program 1 times [2021-11-20 07:11:58,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:58,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289313415] [2021-11-20 07:11:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:58,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:11:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:11:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:11:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:11:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:11:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:11:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:11:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:11:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:11:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:11:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:11:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:11:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:11:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:11:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:11:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:11:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 07:11:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-20 07:11:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 07:11:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-20 07:11:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 07:11:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 07:11:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:11:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:59,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2021-11-20 07:11:59,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:59,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289313415] [2021-11-20 07:11:59,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289313415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:11:59,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065603127] [2021-11-20 07:11:59,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:59,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:11:59,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:11:59,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:11:59,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:12:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:01,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 3914 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:12:01,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-20 07:12:01,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:12:01,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065603127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:01,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:12:01,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2021-11-20 07:12:01,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126856307] [2021-11-20 07:12:01,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:01,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:12:01,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:01,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:12:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:12:01,926 INFO L87 Difference]: Start difference. First operand 25715 states and 35410 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 07:12:04,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:12:04,588 INFO L93 Difference]: Finished difference Result 64195 states and 88358 transitions. [2021-11-20 07:12:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:12:04,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 414 [2021-11-20 07:12:04,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:12:04,766 INFO L225 Difference]: With dead ends: 64195 [2021-11-20 07:12:04,767 INFO L226 Difference]: Without dead ends: 38519 [2021-11-20 07:12:04,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:12:04,870 INFO L933 BasicCegarLoop]: 10147 mSDtfsCounter, 5132 mSDsluCounter, 15306 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 25453 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:12:04,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5132 Valid, 25453 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:12:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38519 states. [2021-11-20 07:12:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38519 to 38503. [2021-11-20 07:12:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38503 states, 24793 states have (on average 1.2516032751179769) internal successors, (31031), 25675 states have internal predecessors, (31031), 10957 states have call successors, (10957), 2751 states have call predecessors, (10957), 2752 states have return successors, (10999), 10600 states have call predecessors, (10999), 10955 states have call successors, (10999) [2021-11-20 07:12:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38503 states to 38503 states and 52987 transitions. [2021-11-20 07:12:07,929 INFO L78 Accepts]: Start accepts. Automaton has 38503 states and 52987 transitions. Word has length 414 [2021-11-20 07:12:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:12:07,929 INFO L470 AbstractCegarLoop]: Abstraction has 38503 states and 52987 transitions. [2021-11-20 07:12:07,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 07:12:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 38503 states and 52987 transitions. [2021-11-20 07:12:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-20 07:12:07,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:12:07,969 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-20 07:12:08,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:08,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:12:08,183 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:12:08,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:08,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1845655679, now seen corresponding path program 1 times [2021-11-20 07:12:08,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:08,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227237161] [2021-11-20 07:12:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:08,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:08,293 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:12:08,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883973611] [2021-11-20 07:12:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:08,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:12:08,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:08,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:12:08,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 07:12:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:09,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 4003 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:12:09,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-11-20 07:12:10,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:12:10,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:12:10,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227237161] [2021-11-20 07:12:10,161 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:12:10,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883973611] [2021-11-20 07:12:10,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883973611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:10,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:12:10,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:12:10,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315427665] [2021-11-20 07:12:10,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:10,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:12:10,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:12:10,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:12:10,164 INFO L87 Difference]: Start difference. First operand 38503 states and 52987 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 07:12:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:12:12,936 INFO L93 Difference]: Finished difference Result 80603 states and 111638 transitions. [2021-11-20 07:12:12,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:12:12,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 407 [2021-11-20 07:12:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:12:13,206 INFO L225 Difference]: With dead ends: 80603 [2021-11-20 07:12:13,206 INFO L226 Difference]: Without dead ends: 42139 [2021-11-20 07:12:13,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:12:13,357 INFO L933 BasicCegarLoop]: 6561 mSDtfsCounter, 727 mSDsluCounter, 5598 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 12159 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:12:13,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 12159 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:12:13,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42139 states. [2021-11-20 07:12:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42139 to 38507. [2021-11-20 07:12:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38507 states, 24797 states have (on average 1.2515626890349638) internal successors, (31035), 25679 states have internal predecessors, (31035), 10957 states have call successors, (10957), 2751 states have call predecessors, (10957), 2752 states have return successors, (10999), 10600 states have call predecessors, (10999), 10955 states have call successors, (10999) [2021-11-20 07:12:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38507 states to 38507 states and 52991 transitions. [2021-11-20 07:12:16,483 INFO L78 Accepts]: Start accepts. Automaton has 38507 states and 52991 transitions. Word has length 407 [2021-11-20 07:12:16,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:12:16,484 INFO L470 AbstractCegarLoop]: Abstraction has 38507 states and 52991 transitions. [2021-11-20 07:12:16,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 07:12:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand 38507 states and 52991 transitions. [2021-11-20 07:12:16,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-20 07:12:16,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:12:16,520 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-20 07:12:16,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:16,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:12:16,747 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:12:16,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:16,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1454617919, now seen corresponding path program 1 times [2021-11-20 07:12:16,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:16,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352163417] [2021-11-20 07:12:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:16,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:16,850 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:12:16,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517465926] [2021-11-20 07:12:16,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:16,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:12:16,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:16,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:12:16,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 07:12:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:18,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 4004 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 07:12:18,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-11-20 07:12:19,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:12:19,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:12:19,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352163417] [2021-11-20 07:12:19,029 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:12:19,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517465926] [2021-11-20 07:12:19,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517465926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:19,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:12:19,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:12:19,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568762272] [2021-11-20 07:12:19,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:19,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:12:19,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:19,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:12:19,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:12:19,031 INFO L87 Difference]: Start difference. First operand 38507 states and 52991 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 07:12:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:12:21,862 INFO L93 Difference]: Finished difference Result 79189 states and 109380 transitions. [2021-11-20 07:12:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:12:21,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 407 [2021-11-20 07:12:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:12:22,241 INFO L225 Difference]: With dead ends: 79189 [2021-11-20 07:12:22,241 INFO L226 Difference]: Without dead ends: 40721 [2021-11-20 07:12:22,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:12:22,398 INFO L933 BasicCegarLoop]: 5995 mSDtfsCounter, 1762 mSDsluCounter, 22322 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 28317 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:12:22,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1814 Valid, 28317 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:12:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40721 states. [2021-11-20 07:12:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40721 to 38523. [2021-11-20 07:12:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38523 states, 24813 states have (on average 1.2514004755571677) internal successors, (31051), 25695 states have internal predecessors, (31051), 10957 states have call successors, (10957), 2751 states have call predecessors, (10957), 2752 states have return successors, (10999), 10600 states have call predecessors, (10999), 10955 states have call successors, (10999) [2021-11-20 07:12:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38523 states to 38523 states and 53007 transitions. [2021-11-20 07:12:25,321 INFO L78 Accepts]: Start accepts. Automaton has 38523 states and 53007 transitions. Word has length 407 [2021-11-20 07:12:25,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:12:25,323 INFO L470 AbstractCegarLoop]: Abstraction has 38523 states and 53007 transitions. [2021-11-20 07:12:25,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 07:12:25,323 INFO L276 IsEmpty]: Start isEmpty. Operand 38523 states and 53007 transitions. [2021-11-20 07:12:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-11-20 07:12:25,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:12:25,345 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:12:25,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:25,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:12:25,547 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:12:25,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:25,547 INFO L85 PathProgramCache]: Analyzing trace with hash 152357316, now seen corresponding path program 1 times [2021-11-20 07:12:25,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:25,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395926248] [2021-11-20 07:12:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:25,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:12:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:12:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:12:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:12:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:12:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:12:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:12:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:12:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:12:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:12:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:12:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:12:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:12:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:12:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:12:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:12:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:12:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 07:12:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-20 07:12:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 07:12:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-20 07:12:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-20 07:12:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 07:12:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-20 07:12:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:27,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 07:12:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:12:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-11-20 07:12:27,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:12:27,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395926248] [2021-11-20 07:12:27,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395926248] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:12:27,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726080762] [2021-11-20 07:12:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:27,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:12:27,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:27,057 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:12:27,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f175d3fc-0c51-4eb7-8653-9ffa36d611e1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 07:12:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:28,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 4234 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:12:28,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2021-11-20 07:12:29,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:12:29,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726080762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:29,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:12:29,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2021-11-20 07:12:29,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046411889] [2021-11-20 07:12:29,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:29,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:12:29,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:29,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:12:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:12:29,611 INFO L87 Difference]: Start difference. First operand 38523 states and 53007 transitions. Second operand has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33)