./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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y --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 aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:28:23,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:28:23,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:28:23,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:28:23,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:28:23,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:28:23,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:28:23,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:28:23,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:28:23,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:28:23,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:28:23,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:28:23,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:28:23,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:28:23,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:28:23,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:28:23,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:28:23,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:28:23,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:28:23,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:28:23,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:28:23,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:28:23,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:28:24,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:28:24,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:28:24,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:28:24,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:28:24,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:28:24,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:28:24,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:28:24,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:28:24,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:28:24,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:28:24,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:28:24,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:28:24,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:28:24,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:28:24,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:28:24,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:28:24,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:28:24,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:28:24,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:28:24,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:28:24,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:28:24,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:28:24,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:28:24,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:28:24,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:28:24,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:28:24,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:28:24,047 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:28:24,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:28:24,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:28:24,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:28:24,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:28:24,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:28:24,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:28:24,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:28:24,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:28:24,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:28:24,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:28:24,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:28:24,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:28:24,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:28:24,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:28:24,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:28:24,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:28:24,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:28:24,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:28:24,052 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:28:24,052 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:28:24,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:28:24,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:28:24,052 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_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f [2021-11-13 18:28:24,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:28:24,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:28:24,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:28:24,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:28:24,407 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:28:24,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2021-11-13 18:28:24,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/data/b421841db/908e9d5963994846ab037e80132d73da/FLAG7691ba18c [2021-11-13 18:28:25,524 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:28:25,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2021-11-13 18:28:25,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/data/b421841db/908e9d5963994846ab037e80132d73da/FLAG7691ba18c [2021-11-13 18:28:25,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/data/b421841db/908e9d5963994846ab037e80132d73da [2021-11-13 18:28:25,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:28:25,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:28:25,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:28:25,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:28:25,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:28:25,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:28:25" (1/1) ... [2021-11-13 18:28:25,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1155289f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:25, skipping insertion in model container [2021-11-13 18:28:25,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:28:25" (1/1) ... [2021-11-13 18:28:25,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:28:26,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:28:28,383 WARN L228 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_33b40eb5-78fa-4219-9735-d9e720c9b030/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2021-11-13 18:28:28,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:28:28,557 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:28:29,067 WARN L228 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_33b40eb5-78fa-4219-9735-d9e720c9b030/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2021-11-13 18:28:29,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:28:29,333 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:28:29,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29 WrapperNode [2021-11-13 18:28:29,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:28:29,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:28:29,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:28:29,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:28:29,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:29,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:29,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:28:29,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:28:29,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:28:29,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:28:29,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:29,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:29,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:29,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:30,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:30,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:30,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:30,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:28:30,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:28:30,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:28:30,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:28:30,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (1/1) ... [2021-11-13 18:28:30,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:28:30,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:28:30,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:28:30,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:28:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-11-13 18:28:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-11-13 18:28:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_7 [2021-11-13 18:28:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_7 [2021-11-13 18:28:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-13 18:28:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-13 18:28:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:28:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:28:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:28:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:28:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:28:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:28:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:28:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:28:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-11-13 18:28:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-11-13 18:28:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 18:28:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 18:28:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-13 18:28:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-13 18:28:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_read_byte [2021-11-13 18:28:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_read_byte [2021-11-13 18:28:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:28:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:28:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-13 18:28:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-13 18:28:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-11-13 18:28:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-11-13 18:28:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-11-13 18:28:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-11-13 18:28:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-11-13 18:28:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-11-13 18:28:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:28:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:28:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 18:28:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 18:28:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 18:28:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 18:28:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-11-13 18:28:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-11-13 18:28:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:28:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:28:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 18:28:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 18:28:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:28:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:28:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-11-13 18:28:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-11-13 18:28:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ioctl [2021-11-13 18:28:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ioctl [2021-11-13 18:28:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:28:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:28:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:28:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:28:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-13 18:28:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-13 18:28:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-11-13 18:28:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-11-13 18:28:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:28:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-11-13 18:28:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-11-13 18:28:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 18:28:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 18:28:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-13 18:28:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-13 18:28:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:28:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:28:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:28:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 18:28:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 18:28:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:28:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:28:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_stats [2021-11-13 18:28:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_stats [2021-11-13 18:28:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:28:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:28:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-13 18:28:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-13 18:28:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:28:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:28:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 18:28:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 18:28:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:28:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:28:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-11-13 18:28:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-11-13 18:28:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-13 18:28:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-13 18:28:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-11-13 18:28:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-11-13 18:28:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-13 18:28:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-13 18:28:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-13 18:28:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-13 18:28:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:28:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:28:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-13 18:28:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-13 18:28:30,304 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:28:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:28:30,304 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-13 18:28:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-13 18:28:30,304 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-11-13 18:28:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-11-13 18:28:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-11-13 18:28:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-11-13 18:28:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:28:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:28:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-11-13 18:28:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-11-13 18:28:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-11-13 18:28:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-11-13 18:28:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-11-13 18:28:30,306 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-11-13 18:28:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:28:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:28:30,306 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:28:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout_work [2021-11-13 18:28:30,306 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout_work [2021-11-13 18:28:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:28:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:28:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 18:28:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 18:28:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:28:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:28:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:28:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:28:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-11-13 18:28:30,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-11-13 18:28:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-11-13 18:28:30,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-11-13 18:28:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-11-13 18:28:30,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-11-13 18:28:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-13 18:28:30,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-13 18:28:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-11-13 18:28:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-11-13 18:28:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-11-13 18:28:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-11-13 18:28:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:28:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:28:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:28:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 18:28:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 18:28:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-11-13 18:28:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-11-13 18:28:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-11-13 18:28:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-11-13 18:28:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-11-13 18:28:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-11-13 18:28:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:28:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:28:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-11-13 18:28:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-11-13 18:28:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-11-13 18:28:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-11-13 18:28:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 18:28:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 18:28:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:28:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-13 18:28:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-13 18:28:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-13 18:28:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-13 18:28:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-11-13 18:28:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-11-13 18:28:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-11-13 18:28:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-11-13 18:28:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 18:28:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 18:28:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-11-13 18:28:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-11-13 18:28:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-13 18:28:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-13 18:28:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:28:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:28:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:28:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:28:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-13 18:28:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-13 18:28:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-11-13 18:28:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-11-13 18:28:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-11-13 18:28:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-11-13 18:28:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-11-13 18:28:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-11-13 18:28:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-11-13 18:28:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-11-13 18:28:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_7 [2021-11-13 18:28:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_7 [2021-11-13 18:28:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-13 18:28:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-13 18:28:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-13 18:28:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-13 18:28:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-13 18:28:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-13 18:28:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-13 18:28:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-13 18:28:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-13 18:28:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-13 18:28:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-11-13 18:28:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-11-13 18:28:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:28:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-13 18:28:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-11-13 18:28:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-11-13 18:28:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-13 18:28:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-13 18:28:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-13 18:28:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-13 18:28:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:28:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:28:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-13 18:28:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-13 18:28:31,970 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:28:40,591 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7041-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret364#1;havoc tlan_eisa_probe_#t~ret364#1; [2021-11-13 18:28:40,592 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7041: SUMMARY for call tlan_eisa_probe_#t~ret364#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-13 18:28:40,592 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2021-11-13 18:28:40,592 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2021-11-13 18:28:40,592 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7043: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-13 18:28:40,592 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret365#1;havoc tlan_eisa_probe_#t~ret365#1; [2021-11-13 18:28:40,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: SUMMARY for call tlan_eisa_probe_#t~ret365#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-13 18:28:40,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7048: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2021-11-13 18:28:40,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7048: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2021-11-13 18:28:40,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7049: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-13 18:28:40,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7053-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret366#1;havoc tlan_eisa_probe_#t~ret366#1; [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7053: SUMMARY for call tlan_eisa_probe_#t~ret366#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7054: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7054: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet374#1; [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055-1: assume !(16 == ~debug~0); [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-11-13 18:28:40,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet367#1; [2021-11-13 18:28:40,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059: assume !(16 == ~debug~0); [2021-11-13 18:28:40,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059-2: SUMMARY for call tlan_eisa_probe_#t~ret369#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-13 18:28:40,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7063: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret369#1;havoc tlan_eisa_probe_#t~ret369#1;tlan_eisa_probe_#t~switch370#1 := 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-13 18:28:40,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7064: havoc tlan_eisa_probe_#t~switch370#1; [2021-11-13 18:28:40,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7065: assume tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_~irq~0#1 := 5; [2021-11-13 18:28:40,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7065: assume !tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_#t~switch370#1 := tlan_eisa_probe_#t~switch370#1 || 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7068: assume tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_~irq~0#1 := 9; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7068: assume !tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_#t~switch370#1 := tlan_eisa_probe_#t~switch370#1 || 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7071: assume tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_~irq~0#1 := 10; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7071: assume !tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_#t~switch370#1 := tlan_eisa_probe_#t~switch370#1 || 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7074: assume tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_~irq~0#1 := 11; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7074: assume !tlan_eisa_probe_#t~switch370#1;tlan_eisa_probe_#t~switch370#1 := true; [2021-11-13 18:28:40,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7077: assume tlan_eisa_probe_#t~switch370#1; [2021-11-13 18:28:40,597 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7077: assume !tlan_eisa_probe_#t~switch370#1; [2021-11-13 18:28:40,597 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7078: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet372#1; [2021-11-13 18:28:40,597 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7078: assume !(16 == ~debug~0); [2021-11-13 18:28:40,597 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7080: SUMMARY for call tlan_eisa_probe_#t~ret371#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2021-11-13 18:28:40,597 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7081: assume -2147483648 <= tlan_eisa_probe_#t~ret371#1 && tlan_eisa_probe_#t~ret371#1 <= 2147483647;tlan_eisa_probe_~rc~3#1 := tlan_eisa_probe_#t~ret371#1;havoc tlan_eisa_probe_#t~ret371#1; [2021-11-13 18:28:40,597 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021-1: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-11-13 18:28:40,598 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-13 18:28:40,598 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: SUMMARY for call tlan_eisa_probe_#t~ret355#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-13 18:28:40,598 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022-1: tlan_eisa_probe_~tmp~38#1 := tlan_eisa_probe_#t~ret355#1;havoc tlan_eisa_probe_#t~ret355#1;havoc tlan_eisa_probe_#t~nondet356#1; [2021-11-13 18:28:40,598 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7090-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2021-11-13 18:28:40,598 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7026-1: assume 0 != ~bitwiseAnd(~debug~0, 16);havoc tlan_eisa_probe_#t~nondet361#1; [2021-11-13 18:28:40,598 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7026-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-13 18:28:40,599 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027-1: tlan_eisa_probe_~tmp___0~11#1 := tlan_eisa_probe_#t~ret358#1;havoc tlan_eisa_probe_#t~ret358#1;havoc tlan_eisa_probe_#t~nondet359#1; [2021-11-13 18:28:40,599 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027: SUMMARY for call tlan_eisa_probe_#t~ret358#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-11-13 18:28:40,600 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7031-1: call tlan_eisa_probe_#t~ret363#1.base, tlan_eisa_probe_#t~ret363#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~4#1.base, tlan_eisa_probe_~tmp___1~4#1.offset := tlan_eisa_probe_#t~ret363#1.base, tlan_eisa_probe_#t~ret363#1.offset;havoc tlan_eisa_probe_#t~ret363#1.base, tlan_eisa_probe_#t~ret363#1.offset; [2021-11-13 18:28:40,600 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7097: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2021-11-13 18:28:40,601 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7097: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2021-11-13 18:28:40,601 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7099: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-11-13 18:28:40,601 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7099: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-11-13 18:28:40,601 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7037: assume 0 == (tlan_eisa_probe_~tmp___1~4#1.base + tlan_eisa_probe_~tmp___1~4#1.offset) % 18446744073709551616; [2021-11-13 18:28:40,602 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7037: assume !(0 == (tlan_eisa_probe_~tmp___1~4#1.base + tlan_eisa_probe_~tmp___1~4#1.offset) % 18446744073709551616); [2021-11-13 18:28:40,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:28:40,792 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:28:40,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:28:40 BoogieIcfgContainer [2021-11-13 18:28:40,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:28:40,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:28:40,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:28:40,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:28:40,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:28:25" (1/3) ... [2021-11-13 18:28:40,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ce75fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:28:40, skipping insertion in model container [2021-11-13 18:28:40,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:29" (2/3) ... [2021-11-13 18:28:40,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ce75fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:28:40, skipping insertion in model container [2021-11-13 18:28:40,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:28:40" (3/3) ... [2021-11-13 18:28:40,812 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2021-11-13 18:28:40,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:28:40,819 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:28:40,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:28:40,931 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 [2021-11-13 18:28:40,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:28:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 2023 states, 1352 states have (on average 1.3150887573964498) internal successors, (1778), 1400 states have internal predecessors, (1778), 570 states have call successors, (570), 100 states have call predecessors, (570), 99 states have return successors, (562), 551 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-13 18:28:41,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-13 18:28:41,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:41,043 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:28:41,044 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:28:41,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:41,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2063791026, now seen corresponding path program 1 times [2021-11-13 18:28:41,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:28:41,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607262929] [2021-11-13 18:28:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:28:41,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:28:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:28:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:28:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:28:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:28:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:28:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:28:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:28:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:28:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:28:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:28:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:28:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-13 18:28:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:28:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:28:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:28:42,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:28:42,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607262929] [2021-11-13 18:28:42,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607262929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:28:42,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:28:42,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:28:42,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568012854] [2021-11-13 18:28:42,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:28:42,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:28:42,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:28:42,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:28:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:28:42,839 INFO L87 Difference]: Start difference. First operand has 2023 states, 1352 states have (on average 1.3150887573964498) internal successors, (1778), 1400 states have internal predecessors, (1778), 570 states have call successors, (570), 100 states have call predecessors, (570), 99 states have return successors, (562), 551 states have call predecessors, (562), 562 states have call successors, (562) Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:28:44,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:28:47,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:28:49,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:02,295 INFO L93 Difference]: Finished difference Result 6149 states and 8957 transitions. [2021-11-13 18:29:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:29:02,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 197 [2021-11-13 18:29:02,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:29:02,361 INFO L225 Difference]: With dead ends: 6149 [2021-11-13 18:29:02,361 INFO L226 Difference]: Without dead ends: 4052 [2021-11-13 18:29:02,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:29:02,388 INFO L933 BasicCegarLoop]: 2998 mSDtfsCounter, 4551 mSDsluCounter, 4995 mSDsCounter, 0 mSdLazyCounter, 4193 mSolverCounterSat, 3774 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16596.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 7993 SdHoareTripleChecker+Invalid, 7970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 137.98ms SdHoareTripleChecker+Time, 3774 IncrementalHoareTripleChecker+Valid, 4193 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18611.73ms IncrementalHoareTripleChecker+Time [2021-11-13 18:29:02,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4774 Valid, 7993 Invalid, 7970 Unknown, 0 Unchecked, 137.98ms Time], IncrementalHoareTripleChecker [3774 Valid, 4193 Invalid, 3 Unknown, 0 Unchecked, 18611.73ms Time] [2021-11-13 18:29:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2021-11-13 18:29:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3656. [2021-11-13 18:29:02,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 2427 states have (on average 1.3011948908117017) internal successors, (3158), 2511 states have internal predecessors, (3158), 1043 states have call successors, (1043), 185 states have call predecessors, (1043), 185 states have return successors, (1046), 1014 states have call predecessors, (1046), 1042 states have call successors, (1046) [2021-11-13 18:29:02,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5247 transitions. [2021-11-13 18:29:02,782 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5247 transitions. Word has length 197 [2021-11-13 18:29:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:29:02,783 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 5247 transitions. [2021-11-13 18:29:02,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:29:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5247 transitions. [2021-11-13 18:29:02,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-13 18:29:02,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:29:02,793 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:02,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:29:02,796 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:29:02,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:02,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1014293796, now seen corresponding path program 1 times [2021-11-13 18:29:02,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:02,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267713375] [2021-11-13 18:29:02,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:02,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:29:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:29:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:29:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:29:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:29:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:29:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:29:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:29:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:29:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 18:29:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:29:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:29:03,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:29:03,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267713375] [2021-11-13 18:29:03,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267713375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:29:03,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:29:03,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:29:03,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810448927] [2021-11-13 18:29:03,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:29:03,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:29:03,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:29:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:29:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:29:03,668 INFO L87 Difference]: Start difference. First operand 3656 states and 5247 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:29:05,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:07,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:15,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:15,810 INFO L93 Difference]: Finished difference Result 7732 states and 11167 transitions. [2021-11-13 18:29:15,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:29:15,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 190 [2021-11-13 18:29:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:29:15,852 INFO L225 Difference]: With dead ends: 7732 [2021-11-13 18:29:15,852 INFO L226 Difference]: Without dead ends: 4105 [2021-11-13 18:29:15,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:29:15,884 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 1660 mSDsluCounter, 3885 mSDsCounter, 0 mSdLazyCounter, 2551 mSolverCounterSat, 1781 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10484.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 6389 SdHoareTripleChecker+Invalid, 4334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.25ms SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 2551 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11657.41ms IncrementalHoareTripleChecker+Time [2021-11-13 18:29:15,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 6389 Invalid, 4334 Unknown, 0 Unchecked, 56.25ms Time], IncrementalHoareTripleChecker [1781 Valid, 2551 Invalid, 2 Unknown, 0 Unchecked, 11657.41ms Time] [2021-11-13 18:29:15,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2021-11-13 18:29:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 3660. [2021-11-13 18:29:16,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2431 states have (on average 1.3006993006993006) internal successors, (3162), 2515 states have internal predecessors, (3162), 1043 states have call successors, (1043), 185 states have call predecessors, (1043), 185 states have return successors, (1046), 1014 states have call predecessors, (1046), 1042 states have call successors, (1046) [2021-11-13 18:29:16,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5251 transitions. [2021-11-13 18:29:16,125 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5251 transitions. Word has length 190 [2021-11-13 18:29:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:29:16,127 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 5251 transitions. [2021-11-13 18:29:16,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:29:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5251 transitions. [2021-11-13 18:29:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-13 18:29:16,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:29:16,138 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 18:29:16,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:29:16,138 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:29:16,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:16,139 INFO L85 PathProgramCache]: Analyzing trace with hash -467895779, now seen corresponding path program 1 times [2021-11-13 18:29:16,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:16,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855353495] [2021-11-13 18:29:16,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:16,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:29:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:29:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:29:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:29:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:29:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:29:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:29:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:29:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:29:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 18:29:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:29:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 18:29:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-13 18:29:16,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:29:16,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855353495] [2021-11-13 18:29:16,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855353495] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:29:16,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570449304] [2021-11-13 18:29:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:16,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:29:16,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:29:16,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:29:16,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:29:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:18,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:29:18,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:29:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-13 18:29:18,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:29:18,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570449304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:29:18,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:29:18,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-11-13 18:29:18,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004821547] [2021-11-13 18:29:18,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:29:18,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:29:18,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:29:18,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:29:18,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:29:18,453 INFO L87 Difference]: Start difference. First operand 3660 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-13 18:29:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:18,778 INFO L93 Difference]: Finished difference Result 7321 states and 10535 transitions. [2021-11-13 18:29:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:29:18,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 208 [2021-11-13 18:29:18,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:29:18,815 INFO L225 Difference]: With dead ends: 7321 [2021-11-13 18:29:18,815 INFO L226 Difference]: Without dead ends: 3690 [2021-11-13 18:29:18,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:29:18,844 INFO L933 BasicCegarLoop]: 2843 mSDtfsCounter, 9 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.92ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 167.35ms IncrementalHoareTripleChecker+Time [2021-11-13 18:29:18,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 5677 Invalid, 20 Unknown, 0 Unchecked, 8.92ms Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 167.35ms Time] [2021-11-13 18:29:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2021-11-13 18:29:19,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3674. [2021-11-13 18:29:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 2443 states have (on average 1.3000409332787557) internal successors, (3176), 2527 states have internal predecessors, (3176), 1045 states have call successors, (1045), 185 states have call predecessors, (1045), 185 states have return successors, (1048), 1016 states have call predecessors, (1048), 1044 states have call successors, (1048) [2021-11-13 18:29:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5269 transitions. [2021-11-13 18:29:19,048 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5269 transitions. Word has length 208 [2021-11-13 18:29:19,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:29:19,049 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 5269 transitions. [2021-11-13 18:29:19,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-13 18:29:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5269 transitions. [2021-11-13 18:29:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 18:29:19,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:29:19,056 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:19,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-13 18:29:19,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:29:19,280 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:29:19,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash -175224482, now seen corresponding path program 1 times [2021-11-13 18:29:19,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:19,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44262075] [2021-11-13 18:29:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:19,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:29:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:29:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:29:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:29:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:29:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:29:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:29:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:29:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:29:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:29:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-13 18:29:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-13 18:29:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-13 18:29:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-13 18:29:19,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:29:19,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44262075] [2021-11-13 18:29:19,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44262075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:29:19,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:29:19,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:29:19,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251443411] [2021-11-13 18:29:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:29:19,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:29:19,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:29:19,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:29:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:29:19,953 INFO L87 Difference]: Start difference. First operand 3674 states and 5269 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:29:22,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:33,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:33,848 INFO L93 Difference]: Finished difference Result 11184 states and 16153 transitions. [2021-11-13 18:29:33,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:29:33,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 209 [2021-11-13 18:29:33,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:29:33,914 INFO L225 Difference]: With dead ends: 11184 [2021-11-13 18:29:33,914 INFO L226 Difference]: Without dead ends: 7539 [2021-11-13 18:29:33,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:29:33,947 INFO L933 BasicCegarLoop]: 3445 mSDtfsCounter, 4456 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 3580 mSolverCounterSat, 3575 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11954.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 7873 SdHoareTripleChecker+Invalid, 7156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.03ms SdHoareTripleChecker+Time, 3575 IncrementalHoareTripleChecker+Valid, 3580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13313.90ms IncrementalHoareTripleChecker+Time [2021-11-13 18:29:33,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4689 Valid, 7873 Invalid, 7156 Unknown, 0 Unchecked, 66.03ms Time], IncrementalHoareTripleChecker [3575 Valid, 3580 Invalid, 1 Unknown, 0 Unchecked, 13313.90ms Time] [2021-11-13 18:29:33,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2021-11-13 18:29:34,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 6772. [2021-11-13 18:29:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6772 states, 4455 states have (on average 1.2962962962962963) internal successors, (5775), 4606 states have internal predecessors, (5775), 1980 states have call successors, (1980), 336 states have call predecessors, (1980), 336 states have return successors, (1983), 1929 states have call predecessors, (1983), 1979 states have call successors, (1983) [2021-11-13 18:29:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6772 states to 6772 states and 9738 transitions. [2021-11-13 18:29:34,477 INFO L78 Accepts]: Start accepts. Automaton has 6772 states and 9738 transitions. Word has length 209 [2021-11-13 18:29:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:29:34,478 INFO L470 AbstractCegarLoop]: Abstraction has 6772 states and 9738 transitions. [2021-11-13 18:29:34,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 18:29:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 6772 states and 9738 transitions. [2021-11-13 18:29:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 18:29:34,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:29:34,484 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 18:29:34,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:29:34,485 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:29:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 254280217, now seen corresponding path program 1 times [2021-11-13 18:29:34,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:34,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300113258] [2021-11-13 18:29:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:34,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:29:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:29:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:29:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:29:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:29:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:29:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:29:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:29:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:29:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 18:29:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:34,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:29:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:35,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:35,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 18:29:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-13 18:29:35,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:29:35,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300113258] [2021-11-13 18:29:35,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300113258] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:29:35,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46655551] [2021-11-13 18:29:35,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:35,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:29:35,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:29:35,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:29:35,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:29:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:36,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 3122 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:29:36,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:29:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-13 18:29:36,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:29:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-13 18:29:36,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46655551] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:29:36,997 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:29:36,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2021-11-13 18:29:36,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562090011] [2021-11-13 18:29:36,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:29:36,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:29:36,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:29:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:29:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:29:36,999 INFO L87 Difference]: Start difference. First operand 6772 states and 9738 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 18:29:39,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:41,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:48,364 INFO L93 Difference]: Finished difference Result 14673 states and 21250 transitions. [2021-11-13 18:29:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:29:48,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 210 [2021-11-13 18:29:48,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:29:48,447 INFO L225 Difference]: With dead ends: 14673 [2021-11-13 18:29:48,447 INFO L226 Difference]: Without dead ends: 7934 [2021-11-13 18:29:48,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:29:48,491 INFO L933 BasicCegarLoop]: 2508 mSDtfsCounter, 1931 mSDsluCounter, 3875 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 1970 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9897.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 6383 SdHoareTripleChecker+Invalid, 4604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.70ms SdHoareTripleChecker+Time, 1970 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10930.88ms IncrementalHoareTripleChecker+Time [2021-11-13 18:29:48,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 6383 Invalid, 4604 Unknown, 0 Unchecked, 33.70ms Time], IncrementalHoareTripleChecker [1970 Valid, 2632 Invalid, 2 Unknown, 0 Unchecked, 10930.88ms Time] [2021-11-13 18:29:48,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7934 states. [2021-11-13 18:29:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7934 to 6944. [2021-11-13 18:29:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 4579 states have (on average 1.2943874208342432) internal successors, (5927), 4730 states have internal predecessors, (5927), 2028 states have call successors, (2028), 336 states have call predecessors, (2028), 336 states have return successors, (2031), 1977 states have call predecessors, (2031), 2027 states have call successors, (2031) [2021-11-13 18:29:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 9986 transitions. [2021-11-13 18:29:48,967 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 9986 transitions. Word has length 210 [2021-11-13 18:29:48,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:29:48,969 INFO L470 AbstractCegarLoop]: Abstraction has 6944 states and 9986 transitions. [2021-11-13 18:29:48,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (40), 5 states have call predecessors, (40), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 18:29:48,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 9986 transitions. [2021-11-13 18:29:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-13 18:29:48,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:29:48,976 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:49,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:29:49,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:29:49,204 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:29:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash -645362856, now seen corresponding path program 1 times [2021-11-13 18:29:49,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:49,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053274511] [2021-11-13 18:29:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:49,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:29:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:29:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:29:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:29:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:29:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:29:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:29:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:29:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:29:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:29:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:29:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:29:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 18:29:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-13 18:29:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-13 18:29:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-13 18:29:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 18:29:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:29:49,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:29:49,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053274511] [2021-11-13 18:29:49,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053274511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:29:49,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:29:49,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:29:49,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508101246] [2021-11-13 18:29:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:29:49,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:29:49,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:29:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:29:49,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:29:49,921 INFO L87 Difference]: Start difference. First operand 6944 states and 9986 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:29:51,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:54,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:29:56,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:30:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:30:18,712 INFO L93 Difference]: Finished difference Result 26084 states and 39261 transitions. [2021-11-13 18:30:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:30:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 211 [2021-11-13 18:30:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:30:18,890 INFO L225 Difference]: With dead ends: 26084 [2021-11-13 18:30:18,890 INFO L226 Difference]: Without dead ends: 19173 [2021-11-13 18:30:18,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:30:18,947 INFO L933 BasicCegarLoop]: 2775 mSDtfsCounter, 7990 mSDsluCounter, 10715 mSDsCounter, 0 mSdLazyCounter, 10017 mSolverCounterSat, 7474 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24691.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8363 SdHoareTripleChecker+Valid, 13490 SdHoareTripleChecker+Invalid, 17494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 146.17ms SdHoareTripleChecker+Time, 7474 IncrementalHoareTripleChecker+Valid, 10017 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27544.97ms IncrementalHoareTripleChecker+Time [2021-11-13 18:30:18,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8363 Valid, 13490 Invalid, 17494 Unknown, 0 Unchecked, 146.17ms Time], IncrementalHoareTripleChecker [7474 Valid, 10017 Invalid, 3 Unknown, 0 Unchecked, 27544.97ms Time] [2021-11-13 18:30:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19173 states. [2021-11-13 18:30:19,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19173 to 13848. [2021-11-13 18:30:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13848 states, 9129 states have (on average 1.2941176470588236) internal successors, (11814), 9447 states have internal predecessors, (11814), 4044 states have call successors, (4044), 673 states have call predecessors, (4044), 674 states have return successors, (4051), 3927 states have call predecessors, (4051), 4043 states have call successors, (4051) [2021-11-13 18:30:20,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13848 states to 13848 states and 19909 transitions. [2021-11-13 18:30:20,107 INFO L78 Accepts]: Start accepts. Automaton has 13848 states and 19909 transitions. Word has length 211 [2021-11-13 18:30:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:30:20,108 INFO L470 AbstractCegarLoop]: Abstraction has 13848 states and 19909 transitions. [2021-11-13 18:30:20,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:30:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 13848 states and 19909 transitions. [2021-11-13 18:30:20,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-13 18:30:20,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:30:20,119 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:30:20,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:30:20,119 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:30:20,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:30:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1597066704, now seen corresponding path program 1 times [2021-11-13 18:30:20,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:30:20,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780835264] [2021-11-13 18:30:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:30:20,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:30:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:30:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:30:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:30:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:30:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:30:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:30:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:30:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:30:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:30:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:30:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:30:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-13 18:30:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 18:30:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 18:30:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:30:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:30:20,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:30:20,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780835264] [2021-11-13 18:30:20,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780835264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:30:20,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:30:20,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:30:20,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559491829] [2021-11-13 18:30:20,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:30:20,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:30:20,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:30:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:30:20,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:30:20,979 INFO L87 Difference]: Start difference. First operand 13848 states and 19909 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:30:23,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:30:25,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:30:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:30:45,420 INFO L93 Difference]: Finished difference Result 52120 states and 78398 transitions. [2021-11-13 18:30:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:30:45,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 212 [2021-11-13 18:30:45,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:30:45,882 INFO L225 Difference]: With dead ends: 52120 [2021-11-13 18:30:45,882 INFO L226 Difference]: Without dead ends: 38305 [2021-11-13 18:30:45,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:30:45,975 INFO L933 BasicCegarLoop]: 2781 mSDtfsCounter, 9738 mSDsluCounter, 8736 mSDsCounter, 0 mSdLazyCounter, 7820 mSolverCounterSat, 9654 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20131.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10118 SdHoareTripleChecker+Valid, 11517 SdHoareTripleChecker+Invalid, 17476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 126.83ms SdHoareTripleChecker+Time, 9654 IncrementalHoareTripleChecker+Valid, 7820 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22537.39ms IncrementalHoareTripleChecker+Time [2021-11-13 18:30:45,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10118 Valid, 11517 Invalid, 17476 Unknown, 0 Unchecked, 126.83ms Time], IncrementalHoareTripleChecker [9654 Valid, 7820 Invalid, 2 Unknown, 0 Unchecked, 22537.39ms Time] [2021-11-13 18:30:46,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38305 states. [2021-11-13 18:30:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38305 to 27672. [2021-11-13 18:30:48,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27672 states, 18249 states have (on average 1.293659926571319) internal successors, (23608), 18881 states have internal predecessors, (23608), 8072 states have call successors, (8072), 1347 states have call predecessors, (8072), 1350 states have return successors, (8087), 7843 states have call predecessors, (8087), 8071 states have call successors, (8087) [2021-11-13 18:30:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27672 states to 27672 states and 39767 transitions. [2021-11-13 18:30:48,502 INFO L78 Accepts]: Start accepts. Automaton has 27672 states and 39767 transitions. Word has length 212 [2021-11-13 18:30:48,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:30:48,503 INFO L470 AbstractCegarLoop]: Abstraction has 27672 states and 39767 transitions. [2021-11-13 18:30:48,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:30:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 27672 states and 39767 transitions. [2021-11-13 18:30:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-13 18:30:48,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:30:48,514 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:30:48,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:30:48,514 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:30:48,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:30:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash -987099685, now seen corresponding path program 1 times [2021-11-13 18:30:48,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:30:48,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090568096] [2021-11-13 18:30:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:30:48,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:30:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:30:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:30:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:30:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:30:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:30:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:30:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:30:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:48,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:30:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:30:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:30:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:30:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:30:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-13 18:30:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 18:30:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-13 18:30:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-13 18:30:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:30:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:30:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:30:49,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:30:49,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090568096] [2021-11-13 18:30:49,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090568096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:30:49,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:30:49,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:30:49,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035753525] [2021-11-13 18:30:49,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:30:49,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:30:49,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:30:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:30:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:30:49,197 INFO L87 Difference]: Start difference. First operand 27672 states and 39767 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:30:51,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:30:53,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:30:55,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:31:09,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:31:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:31:22,254 INFO L93 Difference]: Finished difference Result 104234 states and 156668 transitions. [2021-11-13 18:31:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:31:22,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 213 [2021-11-13 18:31:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:31:23,152 INFO L225 Difference]: With dead ends: 104234 [2021-11-13 18:31:23,154 INFO L226 Difference]: Without dead ends: 76595 [2021-11-13 18:31:23,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:31:23,365 INFO L933 BasicCegarLoop]: 2757 mSDtfsCounter, 7973 mSDsluCounter, 10548 mSDsCounter, 0 mSdLazyCounter, 10015 mSolverCounterSat, 7502 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25957.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8353 SdHoareTripleChecker+Valid, 13305 SdHoareTripleChecker+Invalid, 17520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 149.11ms SdHoareTripleChecker+Time, 7502 IncrementalHoareTripleChecker+Valid, 10015 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28820.79ms IncrementalHoareTripleChecker+Time [2021-11-13 18:31:23,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8353 Valid, 13305 Invalid, 17520 Unknown, 0 Unchecked, 149.11ms Time], IncrementalHoareTripleChecker [7502 Valid, 10015 Invalid, 3 Unknown, 0 Unchecked, 28820.79ms Time] [2021-11-13 18:31:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76595 states. [2021-11-13 18:31:27,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76595 to 55338. [2021-11-13 18:31:27,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55338 states, 36507 states have (on average 1.2932314350672474) internal successors, (47212), 37763 states have internal predecessors, (47212), 16124 states have call successors, (16124), 2699 states have call predecessors, (16124), 2706 states have return successors, (16155), 15675 states have call predecessors, (16155), 16123 states have call successors, (16155) [2021-11-13 18:31:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55338 states to 55338 states and 79491 transitions. [2021-11-13 18:31:27,914 INFO L78 Accepts]: Start accepts. Automaton has 55338 states and 79491 transitions. Word has length 213 [2021-11-13 18:31:27,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:31:27,915 INFO L470 AbstractCegarLoop]: Abstraction has 55338 states and 79491 transitions. [2021-11-13 18:31:27,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:31:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 55338 states and 79491 transitions. [2021-11-13 18:31:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-13 18:31:27,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:31:27,925 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:31:27,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:31:27,926 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:31:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:31:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash 790023955, now seen corresponding path program 1 times [2021-11-13 18:31:27,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:31:27,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064606960] [2021-11-13 18:31:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:31:27,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:31:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:31:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:31:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:31:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:31:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:31:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:31:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:31:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:31:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:31:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:31:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:31:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:31:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-13 18:31:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 18:31:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-13 18:31:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 18:31:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-13 18:31:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:31:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:31:28,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:31:28,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064606960] [2021-11-13 18:31:28,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064606960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:31:28,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:31:28,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:31:28,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745004849] [2021-11-13 18:31:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:31:28,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:31:28,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:31:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:31:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:31:28,843 INFO L87 Difference]: Start difference. First operand 55338 states and 79491 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:31:30,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:31:33,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:31:35,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:32:06,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:06,126 INFO L93 Difference]: Finished difference Result 207749 states and 312070 transitions. [2021-11-13 18:32:06,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:32:06,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 214 [2021-11-13 18:32:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:07,994 INFO L225 Difference]: With dead ends: 207749 [2021-11-13 18:32:07,994 INFO L226 Difference]: Without dead ends: 152444 [2021-11-13 18:32:08,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:32:08,467 INFO L933 BasicCegarLoop]: 2754 mSDtfsCounter, 7990 mSDsluCounter, 10478 mSDsCounter, 0 mSdLazyCounter, 10009 mSolverCounterSat, 7501 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25924.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8363 SdHoareTripleChecker+Valid, 13232 SdHoareTripleChecker+Invalid, 17513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 147.49ms SdHoareTripleChecker+Time, 7501 IncrementalHoareTripleChecker+Valid, 10009 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28882.05ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:08,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8363 Valid, 13232 Invalid, 17513 Unknown, 0 Unchecked, 147.49ms Time], IncrementalHoareTripleChecker [7501 Valid, 10009 Invalid, 3 Unknown, 0 Unchecked, 28882.05ms Time] [2021-11-13 18:32:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152444 states. [2021-11-13 18:32:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152444 to 110223. [2021-11-13 18:32:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110223 states, 72695 states have (on average 1.2925785817456497) internal successors, (93964), 75183 states have internal predecessors, (93964), 32116 states have call successors, (32116), 5396 states have call predecessors, (32116), 5411 states have return successors, (32179), 31235 states have call predecessors, (32179), 32115 states have call successors, (32179) [2021-11-13 18:32:16,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110223 states to 110223 states and 158259 transitions. [2021-11-13 18:32:16,717 INFO L78 Accepts]: Start accepts. Automaton has 110223 states and 158259 transitions. Word has length 214 [2021-11-13 18:32:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:16,718 INFO L470 AbstractCegarLoop]: Abstraction has 110223 states and 158259 transitions. [2021-11-13 18:32:16,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:32:16,719 INFO L276 IsEmpty]: Start isEmpty. Operand 110223 states and 158259 transitions. [2021-11-13 18:32:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-13 18:32:16,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:16,733 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:16,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:32:16,733 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -988640855, now seen corresponding path program 1 times [2021-11-13 18:32:16,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:16,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661028602] [2021-11-13 18:32:16,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:16,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:32:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:32:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:32:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:32:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:32:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:32:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:32:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:32:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:32:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:32:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:32:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:32:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-13 18:32:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-13 18:32:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-13 18:32:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 18:32:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:32:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 18:32:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:17,649 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-13 18:32:17,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:17,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661028602] [2021-11-13 18:32:17,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661028602] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:32:17,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594002223] [2021-11-13 18:32:17,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:17,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:32:17,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:32:17,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:32:17,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b40eb5-78fa-4219-9735-d9e720c9b030/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:32:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:18,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 3310 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:32:18,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:32:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 18:32:19,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:32:19,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594002223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:19,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:32:19,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-11-13 18:32:19,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113522083] [2021-11-13 18:32:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:19,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:32:19,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:19,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:32:19,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:32:19,325 INFO L87 Difference]: Start difference. First operand 110223 states and 158259 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 18:32:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:28,002 INFO L93 Difference]: Finished difference Result 275995 states and 396187 transitions. [2021-11-13 18:32:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:32:28,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 227 [2021-11-13 18:32:28,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:29,319 INFO L225 Difference]: With dead ends: 275995 [2021-11-13 18:32:29,319 INFO L226 Difference]: Without dead ends: 165805 [2021-11-13 18:32:29,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-11-13 18:32:29,818 INFO L933 BasicCegarLoop]: 3903 mSDtfsCounter, 2861 mSDsluCounter, 18414 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 22317 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.23ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.91ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:29,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 22317 Invalid, 76 Unknown, 0 Unchecked, 37.23ms Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 152.91ms Time] [2021-11-13 18:32:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165805 states.