./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--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:52:27,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:52:27,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:52:27,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:52:27,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:52:27,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:52:27,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:52:27,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:52:27,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:52:27,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:52:27,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:52:27,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:52:27,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:52:27,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:52:27,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:52:27,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:52:27,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:52:27,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:52:27,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:52:27,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:52:27,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:52:27,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:52:27,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:52:27,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:52:27,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:52:27,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:52:27,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:52:27,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:52:27,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:52:27,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:52:27,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:52:27,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:52:27,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:52:27,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:52:27,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:52:27,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:52:27,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:52:27,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:52:27,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:52:27,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:52:27,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:52:27,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:52:27,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:52:27,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:52:27,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:52:27,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:52:27,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:52:27,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:52:27,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:52:27,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:52:27,530 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:52:27,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:52:27,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:52:27,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:52:27,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:52:27,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:52:27,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:52:27,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:52:27,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:52:27,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:52:27,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:52:27,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:52:27,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:52:27,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:52:27,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:52:27,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:52:27,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:52:27,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:52:27,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:52:27,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:52:27,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:52:27,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:52:27,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:52:27,535 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_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-11-13 17:52:27,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:52:27,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:52:27,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:52:27,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:52:27,836 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:52:27,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-13 17:52:27,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/data/5811c9f42/21a7ed29a0424fd0a5d64beca7be1a8e/FLAG05b1820cd [2021-11-13 17:52:28,696 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:52:28,697 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-13 17:52:28,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/data/5811c9f42/21a7ed29a0424fd0a5d64beca7be1a8e/FLAG05b1820cd [2021-11-13 17:52:29,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/data/5811c9f42/21a7ed29a0424fd0a5d64beca7be1a8e [2021-11-13 17:52:29,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:52:29,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:52:29,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:52:29,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:52:29,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:52:29,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:52:29" (1/1) ... [2021-11-13 17:52:29,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f3c403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:29, skipping insertion in model container [2021-11-13 17:52:29,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:52:29" (1/1) ... [2021-11-13 17:52:29,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:52:29,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:52:30,345 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-13 17:52:30,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:52:30,573 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:52:30,780 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-13 17:52:30,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:52:30,858 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:52:30,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30 WrapperNode [2021-11-13 17:52:30,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:52:30,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:52:30,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:52:30,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:52:30,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:30,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:52:31,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:52:31,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:52:31,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:52:31,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:52:31,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:52:31,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:52:31,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:52:31,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (1/1) ... [2021-11-13 17:52:31,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:52:31,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:52:31,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:52:31,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:52:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:52:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:52:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:52:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:52:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:52:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-11-13 17:52:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-11-13 17:52:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-13 17:52:31,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-13 17:52:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:52:31,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:52:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 17:52:31,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 17:52:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 17:52:31,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 17:52:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:52:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-11-13 17:52:31,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-11-13 17:52:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 17:52:31,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 17:52:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:52:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:52:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:52:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:52:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2021-11-13 17:52:31,258 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2021-11-13 17:52:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:52:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:52:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:52:31,790 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:52:33,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:52:33,030 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:52:33,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:52:33 BoogieIcfgContainer [2021-11-13 17:52:33,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:52:33,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:52:33,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:52:33,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:52:33,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:52:29" (1/3) ... [2021-11-13 17:52:33,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c5fa42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:52:33, skipping insertion in model container [2021-11-13 17:52:33,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:52:30" (2/3) ... [2021-11-13 17:52:33,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c5fa42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:52:33, skipping insertion in model container [2021-11-13 17:52:33,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:52:33" (3/3) ... [2021-11-13 17:52:33,041 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-13 17:52:33,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:52:33,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:52:33,095 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:52:33,102 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:52:33,102 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:52:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 17:52:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-13 17:52:33,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:33,140 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:33,141 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:33,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash 665515163, now seen corresponding path program 1 times [2021-11-13 17:52:33,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:33,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939087924] [2021-11-13 17:52:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:33,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:33,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 17:52:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:52:34,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:34,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939087924] [2021-11-13 17:52:34,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939087924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:34,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:34,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:52:34,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292277879] [2021-11-13 17:52:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:34,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:52:34,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:52:34,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:52:34,171 INFO L87 Difference]: Start difference. First operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:34,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:34,507 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-11-13 17:52:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:52:34,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-11-13 17:52:34,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:34,525 INFO L225 Difference]: With dead ends: 367 [2021-11-13 17:52:34,525 INFO L226 Difference]: Without dead ends: 170 [2021-11-13 17:52:34,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:52:34,544 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 22 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.82ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 219.05ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:34,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 613 Invalid, 72 Unknown, 0 Unchecked, 15.82ms Time], IncrementalHoareTripleChecker [35 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 219.05ms Time] [2021-11-13 17:52:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-13 17:52:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-13 17:52:34,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 136 states have (on average 1.3823529411764706) internal successors, (188), 141 states have internal predecessors, (188), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 17:52:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 232 transitions. [2021-11-13 17:52:34,626 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 232 transitions. Word has length 118 [2021-11-13 17:52:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:34,627 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 232 transitions. [2021-11-13 17:52:34,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 232 transitions. [2021-11-13 17:52:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-13 17:52:34,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:34,650 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:34,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:52:34,651 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -96288345, now seen corresponding path program 1 times [2021-11-13 17:52:34,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:34,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617942559] [2021-11-13 17:52:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:34,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:34,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 17:52:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,100 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:52:35,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:35,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617942559] [2021-11-13 17:52:35,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617942559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:35,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:35,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:52:35,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879131966] [2021-11-13 17:52:35,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:35,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:52:35,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:35,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:52:35,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:52:35,105 INFO L87 Difference]: Start difference. First operand 170 states and 232 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:35,438 INFO L93 Difference]: Finished difference Result 435 states and 600 transitions. [2021-11-13 17:52:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:52:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-11-13 17:52:35,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:35,445 INFO L225 Difference]: With dead ends: 435 [2021-11-13 17:52:35,445 INFO L226 Difference]: Without dead ends: 283 [2021-11-13 17:52:35,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:35,448 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 198 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 216.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.30ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.90ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:35,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 752 Invalid, 129 Unknown, 0 Unchecked, 9.30ms Time], IncrementalHoareTripleChecker [45 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 266.90ms Time] [2021-11-13 17:52:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-13 17:52:35,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2021-11-13 17:52:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 221 states have (on average 1.420814479638009) internal successors, (314), 226 states have internal predecessors, (314), 34 states have call successors, (34), 14 states have call predecessors, (34), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-13 17:52:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 376 transitions. [2021-11-13 17:52:35,500 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 376 transitions. Word has length 118 [2021-11-13 17:52:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:35,502 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 376 transitions. [2021-11-13 17:52:35,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 376 transitions. [2021-11-13 17:52:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-13 17:52:35,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:35,511 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:35,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:52:35,512 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:35,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash -358901924, now seen corresponding path program 1 times [2021-11-13 17:52:35,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:35,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772963424] [2021-11-13 17:52:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:35,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:52:35,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:35,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772963424] [2021-11-13 17:52:35,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772963424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:35,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:35,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:52:35,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227798205] [2021-11-13 17:52:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:35,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:52:35,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:35,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:52:35,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:52:35,979 INFO L87 Difference]: Start difference. First operand 269 states and 376 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-13 17:52:36,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:36,400 INFO L93 Difference]: Finished difference Result 730 states and 1030 transitions. [2021-11-13 17:52:36,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:52:36,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 117 [2021-11-13 17:52:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:36,408 INFO L225 Difference]: With dead ends: 730 [2021-11-13 17:52:36,408 INFO L226 Difference]: Without dead ends: 479 [2021-11-13 17:52:36,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:36,412 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 188 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 276.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.53ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 364.95ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:36,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 868 Invalid, 149 Unknown, 0 Unchecked, 7.53ms Time], IncrementalHoareTripleChecker [42 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 364.95ms Time] [2021-11-13 17:52:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-11-13 17:52:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 475. [2021-11-13 17:52:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 399 states have (on average 1.4335839598997493) internal successors, (572), 404 states have internal predecessors, (572), 52 states have call successors, (52), 24 states have call predecessors, (52), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-13 17:52:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 670 transitions. [2021-11-13 17:52:36,459 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 670 transitions. Word has length 117 [2021-11-13 17:52:36,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:36,461 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 670 transitions. [2021-11-13 17:52:36,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-13 17:52:36,461 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 670 transitions. [2021-11-13 17:52:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-13 17:52:36,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:36,465 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:36,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:52:36,465 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:36,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:36,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1959898998, now seen corresponding path program 1 times [2021-11-13 17:52:36,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:36,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182065602] [2021-11-13 17:52:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:36,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-13 17:52:36,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:36,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182065602] [2021-11-13 17:52:36,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182065602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:36,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:36,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:52:36,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14415527] [2021-11-13 17:52:36,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:36,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:52:36,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:52:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:52:36,946 INFO L87 Difference]: Start difference. First operand 475 states and 670 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:37,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:37,181 INFO L93 Difference]: Finished difference Result 477 states and 671 transitions. [2021-11-13 17:52:37,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:52:37,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 137 [2021-11-13 17:52:37,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:37,192 INFO L225 Difference]: With dead ends: 477 [2021-11-13 17:52:37,192 INFO L226 Difference]: Without dead ends: 474 [2021-11-13 17:52:37,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:37,195 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 198 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.59ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 193.62ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:37,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 559 Invalid, 72 Unknown, 0 Unchecked, 3.59ms Time], IncrementalHoareTripleChecker [32 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 193.62ms Time] [2021-11-13 17:52:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-13 17:52:37,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2021-11-13 17:52:37,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 399 states have (on average 1.431077694235589) internal successors, (571), 403 states have internal predecessors, (571), 51 states have call successors, (51), 24 states have call predecessors, (51), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-13 17:52:37,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 668 transitions. [2021-11-13 17:52:37,234 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 668 transitions. Word has length 137 [2021-11-13 17:52:37,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:37,235 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 668 transitions. [2021-11-13 17:52:37,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 668 transitions. [2021-11-13 17:52:37,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-13 17:52:37,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:37,238 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:37,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:52:37,238 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:37,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash 627340524, now seen corresponding path program 1 times [2021-11-13 17:52:37,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:37,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572222390] [2021-11-13 17:52:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:37,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-13 17:52:37,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:37,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572222390] [2021-11-13 17:52:37,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572222390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:37,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:37,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:52:37,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044956137] [2021-11-13 17:52:37,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:37,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:52:37,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:37,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:52:37,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:52:37,694 INFO L87 Difference]: Start difference. First operand 474 states and 668 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:37,874 INFO L93 Difference]: Finished difference Result 476 states and 669 transitions. [2021-11-13 17:52:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:52:37,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 138 [2021-11-13 17:52:37,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:37,880 INFO L225 Difference]: With dead ends: 476 [2021-11-13 17:52:37,880 INFO L226 Difference]: Without dead ends: 473 [2021-11-13 17:52:37,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:37,881 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 215 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.68ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.71ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:37,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 390 Invalid, 69 Unknown, 0 Unchecked, 2.68ms Time], IncrementalHoareTripleChecker [47 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 129.71ms Time] [2021-11-13 17:52:37,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-13 17:52:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2021-11-13 17:52:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 399 states have (on average 1.4285714285714286) internal successors, (570), 402 states have internal predecessors, (570), 50 states have call successors, (50), 24 states have call predecessors, (50), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-13 17:52:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 666 transitions. [2021-11-13 17:52:37,907 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 666 transitions. Word has length 138 [2021-11-13 17:52:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:37,908 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 666 transitions. [2021-11-13 17:52:37,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:37,908 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 666 transitions. [2021-11-13 17:52:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-13 17:52:37,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:37,910 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:37,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:52:37,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2027261639, now seen corresponding path program 1 times [2021-11-13 17:52:37,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:37,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435520660] [2021-11-13 17:52:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:37,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-13 17:52:38,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:38,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435520660] [2021-11-13 17:52:38,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435520660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:38,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:38,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:52:38,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450550291] [2021-11-13 17:52:38,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:38,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:52:38,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:38,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:52:38,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:52:38,319 INFO L87 Difference]: Start difference. First operand 473 states and 666 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:38,552 INFO L93 Difference]: Finished difference Result 475 states and 667 transitions. [2021-11-13 17:52:38,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:52:38,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 139 [2021-11-13 17:52:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:38,557 INFO L225 Difference]: With dead ends: 475 [2021-11-13 17:52:38,557 INFO L226 Difference]: Without dead ends: 472 [2021-11-13 17:52:38,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:38,559 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 192 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.53ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 187.22ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:38,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 551 Invalid, 70 Unknown, 0 Unchecked, 4.53ms Time], IncrementalHoareTripleChecker [30 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 187.22ms Time] [2021-11-13 17:52:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-13 17:52:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2021-11-13 17:52:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 399 states have (on average 1.4260651629072683) internal successors, (569), 401 states have internal predecessors, (569), 49 states have call successors, (49), 24 states have call predecessors, (49), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-13 17:52:38,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 664 transitions. [2021-11-13 17:52:38,590 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 664 transitions. Word has length 139 [2021-11-13 17:52:38,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:38,592 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 664 transitions. [2021-11-13 17:52:38,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:38,592 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 664 transitions. [2021-11-13 17:52:38,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-13 17:52:38,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:38,596 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:38,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:52:38,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1579422095, now seen corresponding path program 1 times [2021-11-13 17:52:38,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:38,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521040437] [2021-11-13 17:52:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:38,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-13 17:52:38,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:38,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521040437] [2021-11-13 17:52:38,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521040437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:38,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:38,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:52:38,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547399217] [2021-11-13 17:52:38,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:38,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:52:38,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:38,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:52:38,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:52:38,976 INFO L87 Difference]: Start difference. First operand 472 states and 664 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:39,243 INFO L93 Difference]: Finished difference Result 1334 states and 1900 transitions. [2021-11-13 17:52:39,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:52:39,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 140 [2021-11-13 17:52:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:39,252 INFO L225 Difference]: With dead ends: 1334 [2021-11-13 17:52:39,253 INFO L226 Difference]: Without dead ends: 886 [2021-11-13 17:52:39,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:39,255 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 235 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.65ms SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 198.46ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:39,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 589 Invalid, 135 Unknown, 0 Unchecked, 4.65ms Time], IncrementalHoareTripleChecker [75 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 198.46ms Time] [2021-11-13 17:52:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-11-13 17:52:39,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 880. [2021-11-13 17:52:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 751 states have (on average 1.4394141145139814) internal successors, (1081), 753 states have internal predecessors, (1081), 87 states have call successors, (87), 44 states have call predecessors, (87), 41 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2021-11-13 17:52:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1252 transitions. [2021-11-13 17:52:39,323 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1252 transitions. Word has length 140 [2021-11-13 17:52:39,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:39,324 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1252 transitions. [2021-11-13 17:52:39,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:52:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1252 transitions. [2021-11-13 17:52:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-13 17:52:39,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:39,327 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-11-13 17:52:39,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:52:39,328 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:39,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1050241138, now seen corresponding path program 1 times [2021-11-13 17:52:39,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:39,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082714921] [2021-11-13 17:52:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:39,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 17:52:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 17:52:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-13 17:52:39,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:39,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082714921] [2021-11-13 17:52:39,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082714921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:39,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:39,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:52:39,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026307797] [2021-11-13 17:52:39,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:39,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:52:39,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:39,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:52:39,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:52:39,716 INFO L87 Difference]: Start difference. First operand 880 states and 1252 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-13 17:52:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:40,162 INFO L93 Difference]: Finished difference Result 1730 states and 2467 transitions. [2021-11-13 17:52:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 17:52:40,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 159 [2021-11-13 17:52:40,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:40,169 INFO L225 Difference]: With dead ends: 1730 [2021-11-13 17:52:40,169 INFO L226 Difference]: Without dead ends: 882 [2021-11-13 17:52:40,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:52:40,172 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 232 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 284.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.61ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 336.48ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:40,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1090 Invalid, 221 Unknown, 0 Unchecked, 5.61ms Time], IncrementalHoareTripleChecker [79 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 336.48ms Time] [2021-11-13 17:52:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-13 17:52:40,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 877. [2021-11-13 17:52:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 749 states have (on average 1.4352469959946594) internal successors, (1075), 751 states have internal predecessors, (1075), 86 states have call successors, (86), 43 states have call predecessors, (86), 41 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-13 17:52:40,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1243 transitions. [2021-11-13 17:52:40,222 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1243 transitions. Word has length 159 [2021-11-13 17:52:40,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:40,223 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1243 transitions. [2021-11-13 17:52:40,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-13 17:52:40,223 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1243 transitions. [2021-11-13 17:52:40,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-13 17:52:40,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:40,227 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:40,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:52:40,227 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:40,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:40,228 INFO L85 PathProgramCache]: Analyzing trace with hash 296332059, now seen corresponding path program 1 times [2021-11-13 17:52:40,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:40,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539265938] [2021-11-13 17:52:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:40,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 17:52:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 17:52:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-13 17:52:40,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:40,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539265938] [2021-11-13 17:52:40,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539265938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:40,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:40,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-13 17:52:40,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345995197] [2021-11-13 17:52:40,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:40,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:52:40,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:40,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:52:40,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:52:40,763 INFO L87 Difference]: Start difference. First operand 877 states and 1243 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-13 17:52:41,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:41,197 INFO L93 Difference]: Finished difference Result 2355 states and 3452 transitions. [2021-11-13 17:52:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:52:41,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 164 [2021-11-13 17:52:41,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:41,209 INFO L225 Difference]: With dead ends: 2355 [2021-11-13 17:52:41,209 INFO L226 Difference]: Without dead ends: 1510 [2021-11-13 17:52:41,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:52:41,214 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 431 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 229.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.81ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 276.10ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:41,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3204 Invalid, 266 Unknown, 0 Unchecked, 17.81ms Time], IncrementalHoareTripleChecker [58 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 276.10ms Time] [2021-11-13 17:52:41,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2021-11-13 17:52:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 879. [2021-11-13 17:52:41,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 752 states have (on average 1.4308510638297873) internal successors, (1076), 753 states have internal predecessors, (1076), 85 states have call successors, (85), 43 states have call predecessors, (85), 41 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-13 17:52:41,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1243 transitions. [2021-11-13 17:52:41,288 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1243 transitions. Word has length 164 [2021-11-13 17:52:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:41,289 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1243 transitions. [2021-11-13 17:52:41,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-13 17:52:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1243 transitions. [2021-11-13 17:52:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-13 17:52:41,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:41,295 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:41,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:52:41,295 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1563381600, now seen corresponding path program 1 times [2021-11-13 17:52:41,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:41,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356132568] [2021-11-13 17:52:41,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:41,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:52:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:52:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-13 17:52:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 17:52:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 17:52:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 17:52:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-13 17:52:41,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:41,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356132568] [2021-11-13 17:52:41,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356132568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:41,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:41,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:52:41,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385874147] [2021-11-13 17:52:41,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:41,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:52:41,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:52:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:52:41,676 INFO L87 Difference]: Start difference. First operand 879 states and 1243 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:52:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:42,085 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2021-11-13 17:52:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:52:42,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 171 [2021-11-13 17:52:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:42,087 INFO L225 Difference]: With dead ends: 1190 [2021-11-13 17:52:42,087 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 17:52:42,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:52:42,091 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 437 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 237.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.39ms SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 286.40ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:42,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1390 Invalid, 239 Unknown, 0 Unchecked, 8.39ms Time], IncrementalHoareTripleChecker [76 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 286.40ms Time] [2021-11-13 17:52:42,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 17:52:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 17:52:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:52:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 17:52:42,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2021-11-13 17:52:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:42,094 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:52:42,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:52:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:52:42,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 17:52:42,097 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:52:42,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:52:42,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 17:52:44,525 INFO L861 garLoopResultBuilder]: At program point usbnet_disconnectENTRY(lines 7015 7017) the Hoare annotation is: true [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectFINAL(lines 7015 7017) no Hoare annotation was computed. [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectEXIT(lines 7015 7017) no Hoare annotation was computed. [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevFINAL(lines 6853 6863) no Hoare annotation was computed. [2021-11-13 17:52:44,526 INFO L854 garLoopResultBuilder]: At program point ldv_mutex_lock_udevENTRY(lines 6853 6863) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0)) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-11-13 17:52:44,526 INFO L854 garLoopResultBuilder]: At program point L6857(line 6857) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0))) [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevEXIT(lines 6853 6863) no Hoare annotation was computed. [2021-11-13 17:52:44,526 INFO L858 garLoopResultBuilder]: For program point L5762-1(line 5762) no Hoare annotation was computed. [2021-11-13 17:52:44,527 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocFINAL(lines 5757 5767) no Hoare annotation was computed. [2021-11-13 17:52:44,527 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocEXIT(lines 5757 5767) no Hoare annotation was computed. [2021-11-13 17:52:44,527 INFO L854 garLoopResultBuilder]: At program point ldv_init_zallocENTRY(lines 5757 5767) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_lock~0 1))) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse3 (not (= 1 ~ldv_mutex_mutex_of_device~0))) (.cse4 (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_0~0 1))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_6~0 0))))) [2021-11-13 17:52:44,527 INFO L858 garLoopResultBuilder]: For program point L5764-1(line 5764) no Hoare annotation was computed. [2021-11-13 17:52:44,527 INFO L854 garLoopResultBuilder]: At program point L5762(line 5762) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_lock~0 1))) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (= |#memory_int| |old(#memory_int)|)) (.cse3 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse4 (not (= 1 ~ldv_mutex_mutex_of_device~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_6~0 0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_0~0 1))))) [2021-11-13 17:52:44,527 INFO L861 garLoopResultBuilder]: At program point L5764(line 5764) the Hoare annotation is: true [2021-11-13 17:52:44,527 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5720 5722) the Hoare annotation is: true [2021-11-13 17:52:44,527 INFO L858 garLoopResultBuilder]: For program point L5721-2(lines 5720 5722) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5720 5722) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L861 garLoopResultBuilder]: At program point ldv_undef_intENTRY(lines 5776 5783) the Hoare annotation is: true [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intFINAL(lines 5776 5783) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intEXIT(lines 5776 5783) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 6329 6335) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L861 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 6329 6335) the Hoare annotation is: true [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-13 17:52:44,528 INFO L858 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 6329 6335) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L858 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 5792 5798) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L861 garLoopResultBuilder]: At program point ldv_stopENTRY(lines 5792 5798) the Hoare annotation is: true [2021-11-13 17:52:44,529 INFO L858 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L858 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L858 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L858 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L854 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,529 INFO L858 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-11-13 17:52:44,529 INFO L854 garLoopResultBuilder]: At program point L6081(line 6081) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,530 INFO L858 garLoopResultBuilder]: For program point L6081-1(line 6081) no Hoare annotation was computed. [2021-11-13 17:52:44,532 INFO L858 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-11-13 17:52:44,532 INFO L861 garLoopResultBuilder]: At program point L6214(line 6214) the Hoare annotation is: true [2021-11-13 17:52:44,532 INFO L854 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: false [2021-11-13 17:52:44,532 INFO L858 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-11-13 17:52:44,533 INFO L858 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-11-13 17:52:44,533 INFO L858 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-11-13 17:52:44,533 INFO L858 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-11-13 17:52:44,533 INFO L854 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,533 INFO L858 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-11-13 17:52:44,533 INFO L858 garLoopResultBuilder]: For program point L6052-1(line 6052) no Hoare annotation was computed. [2021-11-13 17:52:44,534 INFO L854 garLoopResultBuilder]: At program point L6052(line 6052) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,534 INFO L854 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,534 INFO L861 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-11-13 17:52:44,535 INFO L858 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-11-13 17:52:44,535 INFO L854 garLoopResultBuilder]: At program point L6978(line 6978) the Hoare annotation is: false [2021-11-13 17:52:44,535 INFO L858 garLoopResultBuilder]: For program point L6945-1(line 6945) no Hoare annotation was computed. [2021-11-13 17:52:44,535 INFO L854 garLoopResultBuilder]: At program point L6945(line 6945) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,535 INFO L854 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,536 INFO L854 garLoopResultBuilder]: At program point L6087(line 6087) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,536 INFO L858 garLoopResultBuilder]: For program point L6087-1(line 6087) no Hoare annotation was computed. [2021-11-13 17:52:44,536 INFO L854 garLoopResultBuilder]: At program point L6153(lines 6002 6228) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,536 INFO L858 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-11-13 17:52:44,536 INFO L858 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-11-13 17:52:44,536 INFO L858 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-11-13 17:52:44,537 INFO L858 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-11-13 17:52:44,538 INFO L861 garLoopResultBuilder]: At program point L6121(line 6121) the Hoare annotation is: true [2021-11-13 17:52:44,538 INFO L858 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2021-11-13 17:52:44,538 INFO L854 garLoopResultBuilder]: At program point L6947(line 6947) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,538 INFO L854 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= 2 ~ldv_mutex_udev~0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-11-13 17:52:44,538 INFO L861 garLoopResultBuilder]: At program point L6221(line 6221) the Hoare annotation is: true [2021-11-13 17:52:44,539 INFO L858 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-11-13 17:52:44,539 INFO L854 garLoopResultBuilder]: At program point L5858(lines 5843 5860) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,539 INFO L858 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-11-13 17:52:44,539 INFO L858 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-11-13 17:52:44,539 INFO L854 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,539 INFO L854 garLoopResultBuilder]: At program point L6190(line 6190) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,540 INFO L861 garLoopResultBuilder]: At program point L6058(line 6058) the Hoare annotation is: true [2021-11-13 17:52:44,540 INFO L858 garLoopResultBuilder]: For program point L6190-1(line 6190) no Hoare annotation was computed. [2021-11-13 17:52:44,540 INFO L854 garLoopResultBuilder]: At program point L6950(line 6950) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,540 INFO L858 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-11-13 17:52:44,540 INFO L858 garLoopResultBuilder]: For program point L6950-1(line 6950) no Hoare annotation was computed. [2021-11-13 17:52:44,541 INFO L858 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-11-13 17:52:44,542 INFO L854 garLoopResultBuilder]: At program point L6918(line 6918) the Hoare annotation is: false [2021-11-13 17:52:44,542 INFO L854 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse2 (= ~ldv_mutex_lock~0 1))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse2 (= 2 ~ldv_mutex_udev~0)) (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0) (= ~ldv_mutex_udev~0 1)))) [2021-11-13 17:52:44,542 INFO L854 garLoopResultBuilder]: At program point L5960(lines 5956 5962) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,543 INFO L858 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-11-13 17:52:44,543 INFO L858 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-11-13 17:52:44,543 INFO L858 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-11-13 17:52:44,543 INFO L854 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= 2 ~ldv_mutex_udev~0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-11-13 17:52:44,543 INFO L858 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-11-13 17:52:44,543 INFO L858 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-11-13 17:52:44,544 INFO L861 garLoopResultBuilder]: At program point L6160(line 6160) the Hoare annotation is: true [2021-11-13 17:52:44,544 INFO L858 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-11-13 17:52:44,544 INFO L854 garLoopResultBuilder]: At program point L6326(lines 6321 6328) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,544 INFO L861 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-11-13 17:52:44,544 INFO L858 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-11-13 17:52:44,544 INFO L858 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-11-13 17:52:44,544 INFO L854 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,545 INFO L858 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-11-13 17:52:44,545 INFO L854 garLoopResultBuilder]: At program point L6922(lines 6914 6924) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,545 INFO L854 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,545 INFO L858 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-11-13 17:52:44,545 INFO L861 garLoopResultBuilder]: At program point L6196(line 6196) the Hoare annotation is: true [2021-11-13 17:52:44,545 INFO L858 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-11-13 17:52:44,546 INFO L858 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-11-13 17:52:44,546 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,546 INFO L854 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse2 (= ~ldv_mutex_lock~0 1))) (or (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0) (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 1) 0) (= ~ldv_mutex_udev~0 1)) (and .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse2 (= 2 ~ldv_mutex_udev~0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)))) [2021-11-13 17:52:44,546 INFO L858 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-11-13 17:52:44,546 INFO L858 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-11-13 17:52:44,546 INFO L858 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-11-13 17:52:44,547 INFO L858 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-11-13 17:52:44,547 INFO L858 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-11-13 17:52:44,547 INFO L854 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,547 INFO L858 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-11-13 17:52:44,547 INFO L858 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-11-13 17:52:44,547 INFO L858 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-11-13 17:52:44,548 INFO L854 garLoopResultBuilder]: At program point L6959(lines 6955 6961) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,548 INFO L854 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,548 INFO L858 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-11-13 17:52:44,548 INFO L858 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-11-13 17:52:44,548 INFO L858 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-11-13 17:52:44,548 INFO L854 garLoopResultBuilder]: At program point L6003(line 6003) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,549 INFO L858 garLoopResultBuilder]: For program point L6003-1(line 6003) no Hoare annotation was computed. [2021-11-13 17:52:44,549 INFO L858 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-11-13 17:52:44,549 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,549 INFO L858 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-11-13 17:52:44,549 INFO L858 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-11-13 17:52:44,549 INFO L858 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-11-13 17:52:44,550 INFO L854 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,550 INFO L854 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,550 INFO L858 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-11-13 17:52:44,551 INFO L858 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-11-13 17:52:44,551 INFO L858 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-11-13 17:52:44,551 INFO L854 garLoopResultBuilder]: At program point L6005(line 6005) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,551 INFO L858 garLoopResultBuilder]: For program point L6005-1(line 6005) no Hoare annotation was computed. [2021-11-13 17:52:44,552 INFO L858 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-11-13 17:52:44,552 INFO L858 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-11-13 17:52:44,552 INFO L854 garLoopResultBuilder]: At program point L6304(lines 6299 6306) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,552 INFO L858 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-11-13 17:52:44,552 INFO L858 garLoopResultBuilder]: For program point L6172-1(line 6172) no Hoare annotation was computed. [2021-11-13 17:52:44,552 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,553 INFO L858 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-11-13 17:52:44,553 INFO L854 garLoopResultBuilder]: At program point L6172(line 6172) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,553 INFO L854 garLoopResultBuilder]: At program point L6007(line 6007) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,554 INFO L858 garLoopResultBuilder]: For program point L6007-1(line 6007) no Hoare annotation was computed. [2021-11-13 17:52:44,554 INFO L854 garLoopResultBuilder]: At program point L5974(line 5974) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,554 INFO L861 garLoopResultBuilder]: At program point L6040(line 6040) the Hoare annotation is: true [2021-11-13 17:52:44,554 INFO L858 garLoopResultBuilder]: For program point L5974-1(line 5974) no Hoare annotation was computed. [2021-11-13 17:52:44,554 INFO L858 garLoopResultBuilder]: For program point L6965-1(lines 6964 6982) no Hoare annotation was computed. [2021-11-13 17:52:44,555 INFO L858 garLoopResultBuilder]: For program point L6965(lines 6965 6968) no Hoare annotation was computed. [2021-11-13 17:52:44,555 INFO L858 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-11-13 17:52:44,555 INFO L858 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-11-13 17:52:44,556 INFO L854 garLoopResultBuilder]: At program point L6966(line 6966) the Hoare annotation is: false [2021-11-13 17:52:44,556 INFO L858 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-11-13 17:52:44,556 INFO L854 garLoopResultBuilder]: At program point L6009(line 6009) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,556 INFO L858 garLoopResultBuilder]: For program point L6009-1(line 6009) no Hoare annotation was computed. [2021-11-13 17:52:44,556 INFO L854 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,556 INFO L858 garLoopResultBuilder]: For program point L6208-1(line 6208) no Hoare annotation was computed. [2021-11-13 17:52:44,557 INFO L858 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-11-13 17:52:44,557 INFO L854 garLoopResultBuilder]: At program point L6208(line 6208) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,557 INFO L858 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-11-13 17:52:44,557 INFO L858 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-11-13 17:52:44,557 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,557 INFO L854 garLoopResultBuilder]: At program point L6011(line 6011) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,558 INFO L854 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,558 INFO L858 garLoopResultBuilder]: For program point L6011-1(line 6011) no Hoare annotation was computed. [2021-11-13 17:52:44,558 INFO L858 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,558 INFO L858 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-11-13 17:52:44,558 INFO L858 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-11-13 17:52:44,558 INFO L858 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-11-13 17:52:44,558 INFO L854 garLoopResultBuilder]: At program point L6970(line 6970) the Hoare annotation is: false [2021-11-13 17:52:44,559 INFO L861 garLoopResultBuilder]: At program point L6178(line 6178) the Hoare annotation is: true [2021-11-13 17:52:44,559 INFO L858 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-11-13 17:52:44,559 INFO L858 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-11-13 17:52:44,559 INFO L854 garLoopResultBuilder]: At program point L6013(line 6013) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2021-11-13 17:52:44,559 INFO L858 garLoopResultBuilder]: For program point L6013-1(line 6013) no Hoare annotation was computed. [2021-11-13 17:52:44,559 INFO L854 garLoopResultBuilder]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_lock~0 1))) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (= |#memory_int| |old(#memory_int)|)) (.cse3 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse4 (not (= 1 ~ldv_mutex_mutex_of_device~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_6~0 0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~ldv_state_variable_0~0 1))))) [2021-11-13 17:52:44,560 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,562 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2021-11-13 17:52:44,562 INFO L861 garLoopResultBuilder]: At program point always_connectedENTRY(lines 5837 5842) the Hoare annotation is: true [2021-11-13 17:52:44,562 INFO L858 garLoopResultBuilder]: For program point always_connectedFINAL(lines 5837 5842) no Hoare annotation was computed. [2021-11-13 17:52:44,563 INFO L858 garLoopResultBuilder]: For program point always_connectedEXIT(lines 5837 5842) no Hoare annotation was computed. [2021-11-13 17:52:44,563 INFO L861 garLoopResultBuilder]: At program point ldv_undef_int_negativeENTRY(lines 6336 6349) the Hoare annotation is: true [2021-11-13 17:52:44,563 INFO L858 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-11-13 17:52:44,563 INFO L858 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-11-13 17:52:44,563 INFO L861 garLoopResultBuilder]: At program point L6344(line 6344) the Hoare annotation is: true [2021-11-13 17:52:44,563 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeFINAL(lines 6336 6349) no Hoare annotation was computed. [2021-11-13 17:52:44,564 INFO L858 garLoopResultBuilder]: For program point L6341-1(line 6341) no Hoare annotation was computed. [2021-11-13 17:52:44,564 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeEXIT(lines 6336 6349) no Hoare annotation was computed. [2021-11-13 17:52:44,565 INFO L861 garLoopResultBuilder]: At program point L6341(line 6341) the Hoare annotation is: true [2021-11-13 17:52:44,568 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:44,569 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:52:44,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:52:44 BoogieIcfgContainer [2021-11-13 17:52:44,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:52:44,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:52:44,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:52:44,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:52:44,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:52:33" (3/4) ... [2021-11-13 17:52:44,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 17:52:44,618 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2021-11-13 17:52:44,618 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2021-11-13 17:52:44,618 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_udev [2021-11-13 17:52:44,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2021-11-13 17:52:44,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2021-11-13 17:52:44,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-13 17:52:44,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2021-11-13 17:52:44,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-11-13 17:52:44,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure always_connected [2021-11-13 17:52:44,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int_negative [2021-11-13 17:52:44,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-11-13 17:52:44,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-13 17:52:44,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 17:52:44,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 17:52:44,665 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 17:52:44,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 [2021-11-13 17:52:44,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 [2021-11-13 17:52:44,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && ldv_mutex_udev == 1) [2021-11-13 17:52:44,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 [2021-11-13 17:52:44,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && \result + 1 <= 0) && ldv_mutex_udev == 1) || (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0) [2021-11-13 17:52:44,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 [2021-11-13 17:52:44,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 [2021-11-13 17:52:45,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 17:52:45,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:52:45,113 INFO L158 Benchmark]: Toolchain (without parser) took 15882.10ms. Allocated memory was 107.0MB in the beginning and 367.0MB in the end (delta: 260.0MB). Free memory was 79.0MB in the beginning and 153.1MB in the end (delta: -74.1MB). Peak memory consumption was 248.3MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,113 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 81.7MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:52:45,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1626.94ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 78.7MB in the beginning and 85.6MB in the end (delta: -6.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.79ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 77.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,115 INFO L158 Benchmark]: Boogie Preprocessor took 136.72ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 68.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,116 INFO L158 Benchmark]: RCFGBuilder took 1874.05ms. Allocated memory was 142.6MB in the beginning and 239.1MB in the end (delta: 96.5MB). Free memory was 68.2MB in the beginning and 143.4MB in the end (delta: -75.3MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,117 INFO L158 Benchmark]: TraceAbstraction took 11572.33ms. Allocated memory was 239.1MB in the beginning and 367.0MB in the end (delta: 127.9MB). Free memory was 142.4MB in the beginning and 95.5MB in the end (delta: 46.9MB). Peak memory consumption was 175.8MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,117 INFO L158 Benchmark]: Witness Printer took 504.71ms. Allocated memory is still 367.0MB. Free memory was 95.5MB in the beginning and 153.1MB in the end (delta: -57.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-13 17:52:45,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 81.7MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1626.94ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 78.7MB in the beginning and 85.6MB in the end (delta: -6.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 160.79ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 77.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.72ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 68.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1874.05ms. Allocated memory was 142.6MB in the beginning and 239.1MB in the end (delta: 96.5MB). Free memory was 68.2MB in the beginning and 143.4MB in the end (delta: -75.3MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11572.33ms. Allocated memory was 239.1MB in the beginning and 367.0MB in the end (delta: 127.9MB). Free memory was 142.4MB in the beginning and 95.5MB in the end (delta: 46.9MB). Peak memory consumption was 175.8MB. Max. memory is 16.1GB. * Witness Printer took 504.71ms. Allocated memory is still 367.0MB. Free memory was 95.5MB in the beginning and 153.1MB in the end (delta: -57.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 187 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 10, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2427 SdHoareTripleChecker+Valid, 2458.90ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2348 mSDsluCounter, 10006 SdHoareTripleChecker+Invalid, 2011.90ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7121 mSDsCounter, 519 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 903 IncrementalHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 519 mSolverCounterUnsat, 2885 mSDtfsCounter, 903 mSolverCounterSat, 79.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=7, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 660 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 567 PreInvPairs, 725 NumberOfFragments, 882 HoareAnnotationTreeSize, 567 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7371 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1401 NumberOfCodeBlocks, 1401 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1391 ConstructedInterpolants, 0 QuantifiedInterpolants, 2506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 2713/2713 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6914]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6299]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6955]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && \result == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 5956]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && ldv_mutex_udev == 1) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5843]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6321]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && \result + 1 <= 0) && ldv_mutex_udev == 1) || (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0) - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) && \result == 0 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 17:52:45,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c7abfb-4737-4214-b331-a56404dbb86b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE