./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-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc --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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:53:32,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:53:32,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:53:32,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:53:32,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:53:32,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:53:32,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:53:32,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:53:32,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:53:32,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:53:32,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:53:32,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:53:32,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:53:32,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:53:32,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:53:32,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:53:32,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:53:32,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:53:32,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:53:32,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:53:32,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:53:32,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:53:32,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:53:32,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:53:32,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:53:32,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:53:32,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:53:32,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:53:32,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:53:32,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:53:32,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:53:32,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:53:32,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:53:32,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:53:32,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:53:32,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:53:32,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:53:32,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:53:32,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:53:32,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:53:32,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:53:32,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:53:32,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:53:32,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:53:32,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:53:32,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:53:32,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:53:32,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:53:32,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:53:32,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:53:32,326 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:53:32,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:53:32,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:53:32,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:53:32,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:53:32,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:53:32,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:53:32,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:53:32,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:53:32,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:53:32,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:53:32,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:53:32,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:53:32,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:53:32,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:53:32,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:53:32,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:53:32,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:53:32,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:53:32,331 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:53:32,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:53:32,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:53:32,332 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_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-11-02 20:53:32,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:53:32,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:53:32,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:53:32,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:53:32,610 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:53:32,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-02 20:53:32,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/data/bf91c464a/869631b38878417b92b849a98508f880/FLAG8bfd9a0bb [2022-11-02 20:53:33,779 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:53:33,779 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-02 20:53:33,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/data/bf91c464a/869631b38878417b92b849a98508f880/FLAG8bfd9a0bb [2022-11-02 20:53:34,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/data/bf91c464a/869631b38878417b92b849a98508f880 [2022-11-02 20:53:34,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:53:34,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:53:34,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:53:34,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:53:34,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:53:34,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:53:34" (1/1) ... [2022-11-02 20:53:34,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c818e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:34, skipping insertion in model container [2022-11-02 20:53:34,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:53:34" (1/1) ... [2022-11-02 20:53:34,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:53:34,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:53:38,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-11-02 20:53:39,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:53:39,279 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:53:39,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-11-02 20:53:39,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:53:40,199 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:53:40,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40 WrapperNode [2022-11-02 20:53:40,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:53:40,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:53:40,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:53:40,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:53:40,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:40,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:40,698 INFO L138 Inliner]: procedures = 606, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7657 [2022-11-02 20:53:40,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:53:40,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:53:40,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:53:40,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:53:40,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:40,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:40,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:40,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:41,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:41,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:41,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:41,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:41,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:53:41,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:53:41,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:53:41,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:53:41,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (1/1) ... [2022-11-02 20:53:41,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:53:41,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:41,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:53:41,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c006c8ce-8cb4-4978-ad68-26d188899d91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:53:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-11-02 20:53:41,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-11-02 20:53:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-11-02 20:53:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-11-02 20:53:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-11-02 20:53:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-11-02 20:53:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-02 20:53:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 20:53:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 20:53:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:53:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:53:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-11-02 20:53:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-11-02 20:53:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-02 20:53:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-02 20:53:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:53:41,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:53:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-11-02 20:53:41,336 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-11-02 20:53:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-02 20:53:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-02 20:53:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 20:53:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 20:53:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-02 20:53:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-02 20:53:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:53:41,338 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:53:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-11-02 20:53:41,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-11-02 20:53:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-11-02 20:53:41,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-11-02 20:53:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-11-02 20:53:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-11-02 20:53:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 20:53:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 20:53:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-02 20:53:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-02 20:53:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 20:53:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 20:53:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-11-02 20:53:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-11-02 20:53:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:53:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:53:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 20:53:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 20:53:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:53:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-02 20:53:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-02 20:53:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:53:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:53:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-02 20:53:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-02 20:53:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-11-02 20:53:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-11-02 20:53:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 20:53:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 20:53:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:53:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:53:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:53:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-11-02 20:53:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-11-02 20:53:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:53:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:53:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-02 20:53:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-02 20:53:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:53:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:53:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 20:53:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 20:53:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:53:41,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:53:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-11-02 20:53:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-11-02 20:53:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-11-02 20:53:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-11-02 20:53:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 20:53:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 20:53:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:53:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:53:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:53:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:53:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-02 20:53:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-02 20:53:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:53:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:53:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:53:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:53:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:53:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:53:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-02 20:53:41,353 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-02 20:53:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 20:53:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 20:53:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-02 20:53:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-02 20:53:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-02 20:53:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-02 20:53:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-02 20:53:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-02 20:53:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-11-02 20:53:41,356 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-11-02 20:53:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-02 20:53:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-02 20:53:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-02 20:53:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-02 20:53:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:53:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:53:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-02 20:53:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-02 20:53:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-02 20:53:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-02 20:53:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-11-02 20:53:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-11-02 20:53:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:53:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:53:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:53:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:53:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 20:53:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 20:53:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-02 20:53:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-02 20:53:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-02 20:53:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-02 20:53:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-02 20:53:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-02 20:53:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-11-02 20:53:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-11-02 20:53:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-02 20:53:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-02 20:53:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-11-02 20:53:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-11-02 20:53:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:53:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:53:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:53:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:53:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 20:53:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 20:53:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:53:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:53:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:53:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:53:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 20:53:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 20:53:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-02 20:53:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-02 20:53:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-02 20:53:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-02 20:53:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 20:53:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 20:53:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 20:53:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 20:53:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-02 20:53:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-02 20:53:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:53:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:53:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:53:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-11-02 20:53:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-11-02 20:53:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:53:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-02 20:53:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-02 20:53:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-02 20:53:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-02 20:53:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-02 20:53:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-02 20:53:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:53:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-02 20:53:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-02 20:53:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-02 20:53:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-02 20:53:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:53:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:53:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-02 20:53:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-02 20:53:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-02 20:53:41,381 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-02 20:53:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:53:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:53:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 20:53:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 20:53:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-11-02 20:53:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-11-02 20:53:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-11-02 20:53:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-11-02 20:53:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:53:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:53:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-02 20:53:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-02 20:53:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-02 20:53:41,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-02 20:53:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-11-02 20:53:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-11-02 20:53:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-02 20:53:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-02 20:53:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-11-02 20:53:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-11-02 20:53:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 20:53:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 20:53:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-11-02 20:53:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-11-02 20:53:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-11-02 20:53:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-11-02 20:53:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:53:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:53:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-11-02 20:53:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-11-02 20:53:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-11-02 20:53:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-11-02 20:53:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:53:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-02 20:53:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-02 20:53:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-11-02 20:53:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-11-02 20:53:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-02 20:53:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-02 20:53:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:53:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:53:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-11-02 20:53:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-11-02 20:53:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-02 20:53:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-02 20:53:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-11-02 20:53:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-11-02 20:53:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 20:53:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 20:53:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-02 20:53:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-02 20:53:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 20:53:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 20:53:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-11-02 20:53:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-11-02 20:53:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-02 20:53:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-02 20:53:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-02 20:53:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-02 20:53:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-11-02 20:53:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-11-02 20:53:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 20:53:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 20:53:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-02 20:53:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-02 20:53:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-11-02 20:53:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-11-02 20:53:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-02 20:53:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-02 20:53:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-11-02 20:53:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-11-02 20:53:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-02 20:53:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-02 20:53:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-02 20:53:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-02 20:53:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:53:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-02 20:53:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-02 20:53:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-11-02 20:53:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-11-02 20:53:42,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:53:42,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:53:43,303 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:53:51,897 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:53:51,928 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:53:51,928 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:53:51,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:53:51 BoogieIcfgContainer [2022-11-02 20:53:51,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:53:51,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:53:51,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:53:51,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:53:51,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:53:34" (1/3) ... [2022-11-02 20:53:51,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae56717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:53:51, skipping insertion in model container [2022-11-02 20:53:51,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:40" (2/3) ... [2022-11-02 20:53:51,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae56717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:53:51, skipping insertion in model container [2022-11-02 20:53:51,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:53:51" (3/3) ... [2022-11-02 20:53:51,946 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-02 20:53:51,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:53:51,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:53:52,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:53:52,100 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f323ba6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:53:52,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:53:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) [2022-11-02 20:53:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 20:53:52,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:52,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:52,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:53:52,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2022-11-02 20:53:52,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:52,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822345585] [2022-11-02 20:53:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:52,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:53,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:53:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:53:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:53:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:53:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:53:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:53,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:53,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822345585] [2022-11-02 20:53:53,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822345585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:53,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:53,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:53:53,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567774004] [2022-11-02 20:53:53,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:53,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:53:53,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:53,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:53:53,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:53:53,798 INFO L87 Difference]: Start difference. First operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:53:59,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:59,878 INFO L93 Difference]: Finished difference Result 4087 states and 5885 transitions. [2022-11-02 20:53:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:53:59,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-11-02 20:53:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:59,956 INFO L225 Difference]: With dead ends: 4087 [2022-11-02 20:53:59,956 INFO L226 Difference]: Without dead ends: 2083 [2022-11-02 20:53:59,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:53:59,982 INFO L413 NwaCegarLoop]: 2623 mSDtfsCounter, 1221 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 1236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:59,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 4788 Invalid, 2749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1236 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-02 20:54:00,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2022-11-02 20:54:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1917. [2022-11-02 20:54:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1328 states have (on average 1.2899096385542168) internal successors, (1713), 1358 states have internal predecessors, (1713), 471 states have call successors, (471), 118 states have call predecessors, (471), 117 states have return successors, (458), 456 states have call predecessors, (458), 458 states have call successors, (458) [2022-11-02 20:54:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2022-11-02 20:54:00,224 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2022-11-02 20:54:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:00,225 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2022-11-02 20:54:00,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:54:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2022-11-02 20:54:00,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 20:54:00,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:00,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:00,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:54:00,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:00,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2022-11-02 20:54:00,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:00,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207699244] [2022-11-02 20:54:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:00,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:01,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:01,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207699244] [2022-11-02 20:54:01,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207699244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:01,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:01,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:01,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673909589] [2022-11-02 20:54:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:01,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:01,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:01,404 INFO L87 Difference]: Start difference. First operand 1917 states and 2642 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-02 20:54:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:15,203 INFO L93 Difference]: Finished difference Result 6036 states and 8473 transitions. [2022-11-02 20:54:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:54:15,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-11-02 20:54:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:15,237 INFO L225 Difference]: With dead ends: 6036 [2022-11-02 20:54:15,238 INFO L226 Difference]: Without dead ends: 4129 [2022-11-02 20:54:15,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:54:15,254 INFO L413 NwaCegarLoop]: 3058 mSDtfsCounter, 4383 mSDsluCounter, 4971 mSDsCounter, 0 mSdLazyCounter, 4643 mSolverCounterSat, 2585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4714 SdHoareTripleChecker+Valid, 8029 SdHoareTripleChecker+Invalid, 7228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2585 IncrementalHoareTripleChecker+Valid, 4643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:15,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4714 Valid, 8029 Invalid, 7228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2585 Valid, 4643 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-11-02 20:54:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2022-11-02 20:54:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3789. [2022-11-02 20:54:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 2628 states have (on average 1.288812785388128) internal successors, (3387), 2676 states have internal predecessors, (3387), 926 states have call successors, (926), 235 states have call predecessors, (926), 234 states have return successors, (913), 909 states have call predecessors, (913), 913 states have call successors, (913) [2022-11-02 20:54:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 5226 transitions. [2022-11-02 20:54:15,473 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 5226 transitions. Word has length 52 [2022-11-02 20:54:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:15,474 INFO L495 AbstractCegarLoop]: Abstraction has 3789 states and 5226 transitions. [2022-11-02 20:54:15,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-02 20:54:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 5226 transitions. [2022-11-02 20:54:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-02 20:54:15,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:15,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:15,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:54:15,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1287472509, now seen corresponding path program 1 times [2022-11-02 20:54:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:15,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505898988] [2022-11-02 20:54:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:15,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:54:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:54:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 20:54:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:54:16,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:16,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505898988] [2022-11-02 20:54:16,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505898988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:16,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:16,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:16,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118724708] [2022-11-02 20:54:16,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:16,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:16,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:16,473 INFO L87 Difference]: Start difference. First operand 3789 states and 5226 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:54:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:25,494 INFO L93 Difference]: Finished difference Result 11913 states and 16735 transitions. [2022-11-02 20:54:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:54:25,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-11-02 20:54:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:25,547 INFO L225 Difference]: With dead ends: 11913 [2022-11-02 20:54:25,548 INFO L226 Difference]: Without dead ends: 8134 [2022-11-02 20:54:25,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:54:25,567 INFO L413 NwaCegarLoop]: 2932 mSDtfsCounter, 5524 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 3880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 5727 SdHoareTripleChecker+Invalid, 6354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3880 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:25,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5849 Valid, 5727 Invalid, 6354 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3880 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-02 20:54:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8134 states. [2022-11-02 20:54:25,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8134 to 7446. [2022-11-02 20:54:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 5168 states have (on average 1.2890866873065014) internal successors, (6662), 5252 states have internal predecessors, (6662), 1815 states have call successors, (1815), 463 states have call predecessors, (1815), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-02 20:54:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10279 transitions. [2022-11-02 20:54:25,990 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10279 transitions. Word has length 73 [2022-11-02 20:54:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:25,992 INFO L495 AbstractCegarLoop]: Abstraction has 7446 states and 10279 transitions. [2022-11-02 20:54:25,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:54:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10279 transitions. [2022-11-02 20:54:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-02 20:54:25,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:25,998 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:25,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:54:25,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash 486934852, now seen corresponding path program 1 times [2022-11-02 20:54:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:26,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409402139] [2022-11-02 20:54:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:54:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:26,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409402139] [2022-11-02 20:54:26,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409402139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:26,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:26,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055887215] [2022-11-02 20:54:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:26,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:26,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:26,908 INFO L87 Difference]: Start difference. First operand 7446 states and 10279 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:31,935 INFO L93 Difference]: Finished difference Result 8112 states and 11491 transitions. [2022-11-02 20:54:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:54:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2022-11-02 20:54:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:31,993 INFO L225 Difference]: With dead ends: 8112 [2022-11-02 20:54:31,993 INFO L226 Difference]: Without dead ends: 8109 [2022-11-02 20:54:32,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:54:32,001 INFO L413 NwaCegarLoop]: 2523 mSDtfsCounter, 3921 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 2094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4249 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2094 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:32,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4249 Valid, 3611 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2094 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-02 20:54:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2022-11-02 20:54:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 7445. [2022-11-02 20:54:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 5168 states have (on average 1.2888931888544892) internal successors, (6661), 5251 states have internal predecessors, (6661), 1814 states have call successors, (1814), 463 states have call predecessors, (1814), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-02 20:54:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10277 transitions. [2022-11-02 20:54:32,493 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10277 transitions. Word has length 72 [2022-11-02 20:54:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:32,494 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10277 transitions. [2022-11-02 20:54:32,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:32,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10277 transitions. [2022-11-02 20:54:32,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-02 20:54:32,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:32,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:32,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:54:32,501 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:32,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2085748447, now seen corresponding path program 1 times [2022-11-02 20:54:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:32,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551257044] [2022-11-02 20:54:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:54:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:33,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551257044] [2022-11-02 20:54:33,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551257044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:33,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:33,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338750363] [2022-11-02 20:54:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:33,475 INFO L87 Difference]: Start difference. First operand 7445 states and 10277 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:40,904 INFO L93 Difference]: Finished difference Result 8111 states and 11489 transitions. [2022-11-02 20:54:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:54:40,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2022-11-02 20:54:40,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:40,981 INFO L225 Difference]: With dead ends: 8111 [2022-11-02 20:54:40,981 INFO L226 Difference]: Without dead ends: 8108 [2022-11-02 20:54:40,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:54:40,990 INFO L413 NwaCegarLoop]: 2518 mSDtfsCounter, 3340 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3663 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:40,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3663 Valid, 5502 Invalid, 3717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-02 20:54:41,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8108 states. [2022-11-02 20:54:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8108 to 7444. [2022-11-02 20:54:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 5168 states have (on average 1.2886996904024768) internal successors, (6660), 5250 states have internal predecessors, (6660), 1813 states have call successors, (1813), 463 states have call predecessors, (1813), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-02 20:54:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10275 transitions. [2022-11-02 20:54:41,745 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10275 transitions. Word has length 73 [2022-11-02 20:54:41,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:41,749 INFO L495 AbstractCegarLoop]: Abstraction has 7444 states and 10275 transitions. [2022-11-02 20:54:41,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:41,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10275 transitions. [2022-11-02 20:54:41,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-02 20:54:41,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:41,752 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:41,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:54:41,753 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:41,753 INFO L85 PathProgramCache]: Analyzing trace with hash -234547225, now seen corresponding path program 1 times [2022-11-02 20:54:41,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:41,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632991413] [2022-11-02 20:54:41,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:41,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:54:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:42,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632991413] [2022-11-02 20:54:42,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632991413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:42,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:42,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:42,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988538738] [2022-11-02 20:54:42,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:42,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:42,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:42,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:42,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:42,624 INFO L87 Difference]: Start difference. First operand 7444 states and 10275 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:47,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:47,274 INFO L93 Difference]: Finished difference Result 8124 states and 11496 transitions. [2022-11-02 20:54:47,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:54:47,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2022-11-02 20:54:47,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:47,315 INFO L225 Difference]: With dead ends: 8124 [2022-11-02 20:54:47,315 INFO L226 Difference]: Without dead ends: 8120 [2022-11-02 20:54:47,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:54:47,321 INFO L413 NwaCegarLoop]: 2521 mSDtfsCounter, 3897 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 2072 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4219 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2072 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:47,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4219 Valid, 3609 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2072 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-02 20:54:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8120 states. [2022-11-02 20:54:47,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 7454. [2022-11-02 20:54:47,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 5176 states have (on average 1.2872874806800618) internal successors, (6663), 5256 states have internal predecessors, (6663), 1811 states have call successors, (1811), 467 states have call predecessors, (1811), 466 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-02 20:54:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 10276 transitions. [2022-11-02 20:54:47,805 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 10276 transitions. Word has length 74 [2022-11-02 20:54:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:47,805 INFO L495 AbstractCegarLoop]: Abstraction has 7454 states and 10276 transitions. [2022-11-02 20:54:47,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:47,806 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 10276 transitions. [2022-11-02 20:54:47,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-02 20:54:47,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:47,808 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:47,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:54:47,808 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:47,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:47,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1318120676, now seen corresponding path program 1 times [2022-11-02 20:54:47,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:47,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726159559] [2022-11-02 20:54:47,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:47,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:54:48,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:48,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726159559] [2022-11-02 20:54:48,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726159559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:48,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:48,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862489098] [2022-11-02 20:54:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:48,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:48,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:48,755 INFO L87 Difference]: Start difference. First operand 7454 states and 10276 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:57,294 INFO L93 Difference]: Finished difference Result 23624 states and 33459 transitions. [2022-11-02 20:54:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:54:57,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-11-02 20:54:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:57,384 INFO L225 Difference]: With dead ends: 23624 [2022-11-02 20:54:57,384 INFO L226 Difference]: Without dead ends: 16180 [2022-11-02 20:54:57,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:54:57,424 INFO L413 NwaCegarLoop]: 3128 mSDtfsCounter, 5452 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 3739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5770 SdHoareTripleChecker+Valid, 6033 SdHoareTripleChecker+Invalid, 6252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3739 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:57,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5770 Valid, 6033 Invalid, 6252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3739 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-02 20:54:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16180 states. [2022-11-02 20:54:58,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16180 to 14954. [2022-11-02 20:54:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14954 states, 10387 states have (on average 1.286415711947627) internal successors, (13362), 10574 states have internal predecessors, (13362), 3608 states have call successors, (3608), 928 states have call predecessors, (3608), 958 states have return successors, (3806), 3579 states have call predecessors, (3806), 3598 states have call successors, (3806) [2022-11-02 20:54:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14954 states to 14954 states and 20776 transitions. [2022-11-02 20:54:58,532 INFO L78 Accepts]: Start accepts. Automaton has 14954 states and 20776 transitions. Word has length 75 [2022-11-02 20:54:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:58,533 INFO L495 AbstractCegarLoop]: Abstraction has 14954 states and 20776 transitions. [2022-11-02 20:54:58,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:54:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 14954 states and 20776 transitions. [2022-11-02 20:54:58,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-02 20:54:58,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:58,542 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:58,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:54:58,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:58,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2088777078, now seen corresponding path program 1 times [2022-11-02 20:54:58,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:58,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604806841] [2022-11-02 20:54:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:54:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:54:59,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:59,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604806841] [2022-11-02 20:54:59,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604806841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:59,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:59,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:59,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612066092] [2022-11-02 20:54:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:59,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:59,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:59,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:59,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:59,339 INFO L87 Difference]: Start difference. First operand 14954 states and 20776 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:55:05,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:05,793 INFO L93 Difference]: Finished difference Result 16164 states and 23022 transitions. [2022-11-02 20:55:05,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:05,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2022-11-02 20:55:05,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:05,881 INFO L225 Difference]: With dead ends: 16164 [2022-11-02 20:55:05,882 INFO L226 Difference]: Without dead ends: 16161 [2022-11-02 20:55:05,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:55:05,895 INFO L413 NwaCegarLoop]: 2526 mSDtfsCounter, 3363 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 1488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3683 SdHoareTripleChecker+Valid, 4512 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1488 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:05,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3683 Valid, 4512 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1488 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-02 20:55:05,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16161 states. [2022-11-02 20:55:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16161 to 14953. [2022-11-02 20:55:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14953 states, 10387 states have (on average 1.2863194377587368) internal successors, (13361), 10573 states have internal predecessors, (13361), 3607 states have call successors, (3607), 928 states have call predecessors, (3607), 958 states have return successors, (3806), 3579 states have call predecessors, (3806), 3598 states have call successors, (3806) [2022-11-02 20:55:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14953 states to 14953 states and 20774 transitions. [2022-11-02 20:55:07,076 INFO L78 Accepts]: Start accepts. Automaton has 14953 states and 20774 transitions. Word has length 76 [2022-11-02 20:55:07,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:07,076 INFO L495 AbstractCegarLoop]: Abstraction has 14953 states and 20774 transitions. [2022-11-02 20:55:07,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:55:07,077 INFO L276 IsEmpty]: Start isEmpty. Operand 14953 states and 20774 transitions. [2022-11-02 20:55:07,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-02 20:55:07,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:07,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:07,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:55:07,080 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:07,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash -328420185, now seen corresponding path program 1 times [2022-11-02 20:55:07,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:07,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524912533] [2022-11-02 20:55:07,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:07,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:07,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:07,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:07,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:55:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:55:08,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:08,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524912533] [2022-11-02 20:55:08,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524912533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:08,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:08,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:55:08,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289172963] [2022-11-02 20:55:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:08,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:08,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:08,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:08,080 INFO L87 Difference]: Start difference. First operand 14953 states and 20774 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:55:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:20,019 INFO L93 Difference]: Finished difference Result 47213 states and 66747 transitions. [2022-11-02 20:55:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:55:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2022-11-02 20:55:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:20,180 INFO L225 Difference]: With dead ends: 47213 [2022-11-02 20:55:20,180 INFO L226 Difference]: Without dead ends: 32270 [2022-11-02 20:55:20,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:55:20,256 INFO L413 NwaCegarLoop]: 2951 mSDtfsCounter, 4433 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 2683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 6801 SdHoareTripleChecker+Invalid, 6159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2683 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:20,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4762 Valid, 6801 Invalid, 6159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2683 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-02 20:55:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32270 states. [2022-11-02 20:55:22,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32270 to 29831. [2022-11-02 20:55:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29831 states, 20728 states have (on average 1.2863276727132382) internal successors, (26663), 21097 states have internal predecessors, (26663), 7192 states have call successors, (7192), 1849 states have call predecessors, (7192), 1910 states have return successors, (7606), 7140 states have call predecessors, (7606), 7182 states have call successors, (7606) [2022-11-02 20:55:22,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29831 states to 29831 states and 41461 transitions. [2022-11-02 20:55:22,872 INFO L78 Accepts]: Start accepts. Automaton has 29831 states and 41461 transitions. Word has length 77 [2022-11-02 20:55:22,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:22,873 INFO L495 AbstractCegarLoop]: Abstraction has 29831 states and 41461 transitions. [2022-11-02 20:55:22,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:55:22,873 INFO L276 IsEmpty]: Start isEmpty. Operand 29831 states and 41461 transitions. [2022-11-02 20:55:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-02 20:55:22,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:22,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:22,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:55:22,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1591926483, now seen corresponding path program 1 times [2022-11-02 20:55:22,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:22,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026884795] [2022-11-02 20:55:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:22,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:55:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:55:23,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:23,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026884795] [2022-11-02 20:55:23,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026884795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:23,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:23,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:55:23,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726537474] [2022-11-02 20:55:23,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:23,712 INFO L87 Difference]: Start difference. First operand 29831 states and 41461 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:55:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:32,663 INFO L93 Difference]: Finished difference Result 32249 states and 45951 transitions. [2022-11-02 20:55:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:32,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 78 [2022-11-02 20:55:32,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:32,771 INFO L225 Difference]: With dead ends: 32249 [2022-11-02 20:55:32,771 INFO L226 Difference]: Without dead ends: 32235 [2022-11-02 20:55:32,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:55:32,787 INFO L413 NwaCegarLoop]: 2507 mSDtfsCounter, 3322 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 1464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3652 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1464 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:32,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3652 Valid, 5473 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1464 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-02 20:55:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32235 states. [2022-11-02 20:55:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32235 to 29819. [2022-11-02 20:55:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29819 states, 20717 states have (on average 1.2861900854370807) internal successors, (26646), 21085 states have internal predecessors, (26646), 7191 states have call successors, (7191), 1849 states have call predecessors, (7191), 1910 states have return successors, (7606), 7140 states have call predecessors, (7606), 7182 states have call successors, (7606) [2022-11-02 20:55:34,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29819 states to 29819 states and 41443 transitions. [2022-11-02 20:55:34,849 INFO L78 Accepts]: Start accepts. Automaton has 29819 states and 41443 transitions. Word has length 78 [2022-11-02 20:55:34,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:34,849 INFO L495 AbstractCegarLoop]: Abstraction has 29819 states and 41443 transitions. [2022-11-02 20:55:34,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 20:55:34,850 INFO L276 IsEmpty]: Start isEmpty. Operand 29819 states and 41443 transitions. [2022-11-02 20:55:34,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-02 20:55:34,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:34,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:34,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:55:34,857 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:34,857 INFO L85 PathProgramCache]: Analyzing trace with hash 293652181, now seen corresponding path program 1 times [2022-11-02 20:55:34,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:34,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856134958] [2022-11-02 20:55:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:34,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-02 20:55:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:55:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:55:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:55:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:55:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:55:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:35,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:35,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856134958] [2022-11-02 20:55:35,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856134958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:35,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:35,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:55:35,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054289250] [2022-11-02 20:55:35,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:35,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:55:35,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:35,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:35,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:35,847 INFO L87 Difference]: Start difference. First operand 29819 states and 41443 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:55:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:51,510 INFO L93 Difference]: Finished difference Result 85084 states and 119649 transitions. [2022-11-02 20:55:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:55:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2022-11-02 20:55:51,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:51,757 INFO L225 Difference]: With dead ends: 85084 [2022-11-02 20:55:51,757 INFO L226 Difference]: Without dead ends: 55275 [2022-11-02 20:55:51,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:55:51,887 INFO L413 NwaCegarLoop]: 2448 mSDtfsCounter, 5352 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 6022 mSolverCounterSat, 3978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 10000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3978 IncrementalHoareTripleChecker+Valid, 6022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:51,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5657 Valid, 4772 Invalid, 10000 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3978 Valid, 6022 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-11-02 20:55:51,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55275 states. [2022-11-02 20:55:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55275 to 51007. [2022-11-02 20:55:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51007 states, 35437 states have (on average 1.2867906425487485) internal successors, (45600), 36121 states have internal predecessors, (45600), 12187 states have call successors, (12187), 3273 states have call predecessors, (12187), 3382 states have return successors, (12914), 12092 states have call predecessors, (12914), 12178 states have call successors, (12914) [2022-11-02 20:55:55,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51007 states to 51007 states and 70701 transitions. [2022-11-02 20:55:55,511 INFO L78 Accepts]: Start accepts. Automaton has 51007 states and 70701 transitions. Word has length 113 [2022-11-02 20:55:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:55,512 INFO L495 AbstractCegarLoop]: Abstraction has 51007 states and 70701 transitions. [2022-11-02 20:55:55,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:55:55,512 INFO L276 IsEmpty]: Start isEmpty. Operand 51007 states and 70701 transitions. [2022-11-02 20:55:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-02 20:55:55,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:55,531 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-02 20:55:55,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:55:55,531 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash 378795284, now seen corresponding path program 1 times [2022-11-02 20:55:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:55,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72183341] [2022-11-02 20:55:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:55,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:55:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:55:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:55:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:55:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:55:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-02 20:55:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-02 20:55:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-02 20:55:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72183341] [2022-11-02 20:55:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72183341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:55:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881257126] [2022-11-02 20:55:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:56,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:55:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:56,967 INFO L87 Difference]: Start difference. First operand 51007 states and 70701 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:56:20,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:20,509 INFO L93 Difference]: Finished difference Result 106222 states and 148840 transitions. [2022-11-02 20:56:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:56:20,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-02 20:56:20,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:20,878 INFO L225 Difference]: With dead ends: 106222 [2022-11-02 20:56:20,878 INFO L226 Difference]: Without dead ends: 55225 [2022-11-02 20:56:21,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:56:21,001 INFO L413 NwaCegarLoop]: 4289 mSDtfsCounter, 4257 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 10520 mSolverCounterSat, 3201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 8773 SdHoareTripleChecker+Invalid, 13721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3201 IncrementalHoareTripleChecker+Valid, 10520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:21,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4676 Valid, 8773 Invalid, 13721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3201 Valid, 10520 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2022-11-02 20:56:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55225 states. [2022-11-02 20:56:24,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55225 to 50944. [2022-11-02 20:56:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50944 states, 35395 states have (on average 1.2866789094504874) internal successors, (45542), 36086 states have internal predecessors, (45542), 12173 states have call successors, (12173), 3259 states have call predecessors, (12173), 3375 states have return successors, (12891), 12078 states have call predecessors, (12891), 12163 states have call successors, (12891) [2022-11-02 20:56:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50944 states to 50944 states and 70606 transitions. [2022-11-02 20:56:24,621 INFO L78 Accepts]: Start accepts. Automaton has 50944 states and 70606 transitions. Word has length 135 [2022-11-02 20:56:24,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:24,622 INFO L495 AbstractCegarLoop]: Abstraction has 50944 states and 70606 transitions. [2022-11-02 20:56:24,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:56:24,622 INFO L276 IsEmpty]: Start isEmpty. Operand 50944 states and 70606 transitions. [2022-11-02 20:56:24,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-02 20:56:24,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:24,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-02 20:56:24,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:56:24,636 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash -865969197, now seen corresponding path program 1 times [2022-11-02 20:56:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:24,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621323227] [2022-11-02 20:56:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:24,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:56:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:25,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:56:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:56:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:56:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:56:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:56:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:56:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:56:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:56:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:56:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:56:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-02 20:56:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-02 20:56:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-02 20:56:26,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:26,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621323227] [2022-11-02 20:56:26,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621323227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:26,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:26,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:56:26,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675020834] [2022-11-02 20:56:26,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:26,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:56:26,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:26,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:56:26,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:56:26,245 INFO L87 Difference]: Start difference. First operand 50944 states and 70606 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:56:45,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:45,220 INFO L93 Difference]: Finished difference Result 60964 states and 87664 transitions. [2022-11-02 20:56:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:56:45,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-02 20:56:45,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:45,559 INFO L225 Difference]: With dead ends: 60964 [2022-11-02 20:56:45,559 INFO L226 Difference]: Without dead ends: 60869 [2022-11-02 20:56:45,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:56:45,580 INFO L413 NwaCegarLoop]: 3866 mSDtfsCounter, 3988 mSDsluCounter, 9313 mSDsCounter, 0 mSdLazyCounter, 11609 mSolverCounterSat, 2847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 13179 SdHoareTripleChecker+Invalid, 14456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2847 IncrementalHoareTripleChecker+Valid, 11609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:45,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 13179 Invalid, 14456 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2847 Valid, 11609 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2022-11-02 20:56:45,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60869 states. [2022-11-02 20:56:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60869 to 50923. [2022-11-02 20:56:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50923 states, 35392 states have (on average 1.2864771699819169) internal successors, (45531), 36075 states have internal predecessors, (45531), 12155 states have call successors, (12155), 3258 states have call predecessors, (12155), 3375 states have return successors, (12875), 12069 states have call predecessors, (12875), 12147 states have call successors, (12875) [2022-11-02 20:56:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50923 states to 50923 states and 70561 transitions. [2022-11-02 20:56:49,103 INFO L78 Accepts]: Start accepts. Automaton has 50923 states and 70561 transitions. Word has length 135 [2022-11-02 20:56:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:49,103 INFO L495 AbstractCegarLoop]: Abstraction has 50923 states and 70561 transitions. [2022-11-02 20:56:49,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:56:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 50923 states and 70561 transitions. [2022-11-02 20:56:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-02 20:56:49,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:49,126 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:49,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:56:49,127 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:49,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1337326555, now seen corresponding path program 1 times [2022-11-02 20:56:49,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:49,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551202673] [2022-11-02 20:56:49,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:49,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:56:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:56:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:56:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:56:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:56:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:56:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:56:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:56:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 20:56:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:56:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 20:56:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:56:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:56:50,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:50,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551202673] [2022-11-02 20:56:50,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551202673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:50,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:50,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:56:50,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736440973] [2022-11-02 20:56:50,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:50,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:56:50,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:50,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:56:50,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:56:50,348 INFO L87 Difference]: Start difference. First operand 50923 states and 70561 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12)