./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a --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 f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:53:47,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:53:47,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:53:47,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:53:47,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:53:47,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:53:47,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:53:47,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:53:47,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:53:47,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:53:47,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:53:47,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:53:47,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:53:47,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:53:47,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:53:47,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:53:47,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:53:47,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:53:47,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:53:47,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:53:47,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:53:47,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:53:47,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:53:47,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:53:47,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:53:47,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:53:47,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:53:47,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:53:47,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:53:47,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:53:47,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:53:47,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:53:47,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:53:47,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:53:47,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:53:47,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:53:47,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:53:47,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:53:47,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:53:47,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:53:47,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:53:47,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 13:53:47,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:53:47,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:53:47,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:53:47,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:53:47,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:53:47,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:53:47,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:53:47,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:53:47,442 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:53:47,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:53:47,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:53:47,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:53:47,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:53:47,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:53:47,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:53:47,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:53:47,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:53:47,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:53:47,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:53:47,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:53:47,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:53:47,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:53:47,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:53:47,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:53:47,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:53:47,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:53:47,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:53:47,448 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:53:47,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:53:47,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:53:47,449 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_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 [2022-11-21 13:53:47,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:53:47,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:53:47,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:53:47,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:53:47,786 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:53:47,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2022-11-21 13:53:51,329 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:53:52,144 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:53:52,144 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2022-11-21 13:53:52,220 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/data/a25953834/952478c396d140959bf8c0645bf0acd7/FLAGda061e722 [2022-11-21 13:53:52,243 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/data/a25953834/952478c396d140959bf8c0645bf0acd7 [2022-11-21 13:53:52,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:53:52,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:53:52,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:53:52,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:53:52,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:53:52,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:53:52" (1/1) ... [2022-11-21 13:53:52,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b57c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:52, skipping insertion in model container [2022-11-21 13:53:52,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:53:52" (1/1) ... [2022-11-21 13:53:52,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:53:52,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:53:54,888 WARN L237 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_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2022-11-21 13:53:54,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:53:54,992 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:53:55,490 WARN L237 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_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2022-11-21 13:53:55,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:53:55,688 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:53:55,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55 WrapperNode [2022-11-21 13:53:55,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:53:55,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:53:55,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:53:55,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:53:55,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:55,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,050 INFO L138 Inliner]: procedures = 237, calls = 2068, calls flagged for inlining = 107, calls inlined = 104, statements flattened = 4538 [2022-11-21 13:53:56,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:53:56,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:53:56,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:53:56,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:53:56,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,449 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:53:56,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:53:56,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:53:56,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:53:56,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (1/1) ... [2022-11-21 13:53:56,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:53:56,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:53:56,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:53:56,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:53:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-11-21 13:53:56,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-11-21 13:53:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_ioctl [2022-11-21 13:53:56,617 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_ioctl [2022-11-21 13:53:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 13:53:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 13:53:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 13:53:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 13:53:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-11-21 13:53:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-11-21 13:53:56,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 13:53:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 13:53:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-11-21 13:53:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-11-21 13:53:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-11-21 13:53:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-11-21 13:53:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 13:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 13:53:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-21 13:53:56,620 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-21 13:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 13:53:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 13:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 13:53:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 13:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-21 13:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-21 13:53:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-11-21 13:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-11-21 13:53:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-21 13:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-21 13:53:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-11-21 13:53:56,623 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-11-21 13:53:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 13:53:56,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 13:53:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-11-21 13:53:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-11-21 13:53:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-11-21 13:53:56,626 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-11-21 13:53:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 13:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 13:53:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 13:53:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 13:53:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-11-21 13:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-11-21 13:53:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-21 13:53:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-21 13:53:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-11-21 13:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-11-21 13:53:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-21 13:53:56,629 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-21 13:53:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:53:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 13:53:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-11-21 13:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-11-21 13:53:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-11-21 13:53:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-11-21 13:53:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 13:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-21 13:53:56,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-21 13:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-21 13:53:56,632 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-11-21 13:53:56,632 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-11-21 13:53:56,633 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 13:53:56,633 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 13:53:56,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:53:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 13:53:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-11-21 13:53:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-11-21 13:53:56,634 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-11-21 13:53:56,634 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-11-21 13:53:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-21 13:53:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-21 13:53:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-21 13:53:56,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-21 13:53:56,635 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-11-21 13:53:56,637 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-11-21 13:53:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 13:53:56,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 13:53:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-21 13:53:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-21 13:53:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 13:53:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 13:53:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-11-21 13:53:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-11-21 13:53:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-11-21 13:53:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-11-21 13:53:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 13:53:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-11-21 13:53:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-11-21 13:53:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-11-21 13:53:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-11-21 13:53:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 13:53:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-11-21 13:53:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-11-21 13:53:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-21 13:53:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-21 13:53:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-11-21 13:53:56,643 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-11-21 13:53:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 13:53:56,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 13:53:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:53:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 13:53:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 13:53:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 13:53:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 13:53:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-11-21 13:53:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-11-21 13:53:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-21 13:53:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-21 13:53:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 13:53:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 13:53:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-11-21 13:53:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-11-21 13:53:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-21 13:53:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-21 13:53:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:53:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-21 13:53:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-21 13:53:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-21 13:53:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-21 13:53:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-11-21 13:53:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-11-21 13:53:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-21 13:53:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-21 13:53:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 13:53:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 13:53:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-11-21 13:53:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-11-21 13:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-11-21 13:53:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-11-21 13:53:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-21 13:53:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-21 13:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-11-21 13:53:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-11-21 13:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:53:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-11-21 13:53:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-11-21 13:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-21 13:53:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-21 13:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 13:53:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 13:53:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 13:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-21 13:53:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-21 13:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 13:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-21 13:53:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-21 13:53:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-11-21 13:53:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-11-21 13:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-11-21 13:53:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-11-21 13:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-11-21 13:53:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-11-21 13:53:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-11-21 13:53:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-11-21 13:53:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-11-21 13:53:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-11-21 13:53:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-11-21 13:53:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-11-21 13:53:56,669 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-11-21 13:53:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-11-21 13:53:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 13:53:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 13:53:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-11-21 13:53:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-11-21 13:53:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-21 13:53:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-21 13:53:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-21 13:53:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-21 13:53:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:53:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-21 13:53:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-21 13:53:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-11-21 13:53:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-11-21 13:53:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-21 13:53:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-21 13:53:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:53:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:53:57,482 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:53:57,486 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:53:57,974 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 13:54:05,325 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:54:05,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:54:05,347 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:54:05,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:05 BoogieIcfgContainer [2022-11-21 13:54:05,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:54:05,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:54:05,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:54:05,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:54:05,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:53:52" (1/3) ... [2022-11-21 13:54:05,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1e3de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:05, skipping insertion in model container [2022-11-21 13:54:05,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:55" (2/3) ... [2022-11-21 13:54:05,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1e3de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:05, skipping insertion in model container [2022-11-21 13:54:05,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:05" (3/3) ... [2022-11-21 13:54:05,364 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2022-11-21 13:54:05,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:54:05,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:54:05,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:54:05,520 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@61b8f8ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:54:05,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:54:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 1825 states, 1125 states have (on average 1.304888888888889) internal successors, (1468), 1156 states have internal predecessors, (1468), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) [2022-11-21 13:54:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-21 13:54:05,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:05,611 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:05,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:54:05,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash -389244476, now seen corresponding path program 1 times [2022-11-21 13:54:05,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:05,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055660830] [2022-11-21 13:54:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:05,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:54:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:54:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:54:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:54:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:54:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:54:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:54:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 13:54:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 13:54:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 13:54:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:54:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 13:54:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 13:54:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 13:54:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:54:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:54:07,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:07,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055660830] [2022-11-21 13:54:07,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055660830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:07,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:07,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:54:07,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850258031] [2022-11-21 13:54:07,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:07,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:54:07,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:07,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:54:07,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:54:07,436 INFO L87 Difference]: Start difference. First operand has 1825 states, 1125 states have (on average 1.304888888888889) internal successors, (1468), 1156 states have internal predecessors, (1468), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 13:54:13,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:15,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:16,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:26,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:27,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:33,071 INFO L93 Difference]: Finished difference Result 3704 states and 5522 transitions. [2022-11-21 13:54:33,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:54:33,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2022-11-21 13:54:33,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:33,149 INFO L225 Difference]: With dead ends: 3704 [2022-11-21 13:54:33,149 INFO L226 Difference]: Without dead ends: 1866 [2022-11-21 13:54:33,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:54:33,183 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 1992 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 2028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 7285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2028 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:33,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2263 Valid, 2946 Invalid, 7285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2028 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time] [2022-11-21 13:54:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-11-21 13:54:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1807. [2022-11-21 13:54:33,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1116 states have (on average 1.2974910394265233) internal successors, (1448), 1138 states have internal predecessors, (1448), 611 states have call successors, (611), 80 states have call predecessors, (611), 79 states have return successors, (610), 599 states have call predecessors, (610), 610 states have call successors, (610) [2022-11-21 13:54:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2669 transitions. [2022-11-21 13:54:33,514 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2669 transitions. Word has length 192 [2022-11-21 13:54:33,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:33,515 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2669 transitions. [2022-11-21 13:54:33,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 13:54:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2669 transitions. [2022-11-21 13:54:33,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-21 13:54:33,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:33,531 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:33,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:54:33,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:54:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1527541554, now seen corresponding path program 1 times [2022-11-21 13:54:33,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:33,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726638520] [2022-11-21 13:54:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:54:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:54:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:54:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:54:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:54:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:54:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:54:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:54:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 13:54:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 13:54:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 13:54:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 13:54:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 13:54:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 13:54:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 13:54:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:54:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:54:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:54:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:34,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726638520] [2022-11-21 13:54:34,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726638520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:34,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:34,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 13:54:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911714008] [2022-11-21 13:54:34,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:34,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 13:54:34,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:34,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 13:54:34,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:54:34,845 INFO L87 Difference]: Start difference. First operand 1807 states and 2669 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 13:54:43,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:44,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:46,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:48,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:54:50,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:07,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:11,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:55:18,747 INFO L93 Difference]: Finished difference Result 5498 states and 8174 transitions. [2022-11-21 13:55:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 13:55:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-11-21 13:55:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:55:18,780 INFO L225 Difference]: With dead ends: 5498 [2022-11-21 13:55:18,780 INFO L226 Difference]: Without dead ends: 3713 [2022-11-21 13:55:18,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 13:55:18,797 INFO L413 NwaCegarLoop]: 1198 mSDtfsCounter, 5389 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 14261 mSolverCounterSat, 5354 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5864 SdHoareTripleChecker+Valid, 5531 SdHoareTripleChecker+Invalid, 19616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5354 IncrementalHoareTripleChecker+Valid, 14261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2022-11-21 13:55:18,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5864 Valid, 5531 Invalid, 19616 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5354 Valid, 14261 Invalid, 1 Unknown, 0 Unchecked, 42.7s Time] [2022-11-21 13:55:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-11-21 13:55:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3592. [2022-11-21 13:55:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 2216 states have (on average 1.2969314079422383) internal successors, (2874), 2267 states have internal predecessors, (2874), 1214 states have call successors, (1214), 159 states have call predecessors, (1214), 161 states have return successors, (1228), 1187 states have call predecessors, (1228), 1213 states have call successors, (1228) [2022-11-21 13:55:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5316 transitions. [2022-11-21 13:55:19,179 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5316 transitions. Word has length 192 [2022-11-21 13:55:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:55:19,180 INFO L495 AbstractCegarLoop]: Abstraction has 3592 states and 5316 transitions. [2022-11-21 13:55:19,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 13:55:19,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5316 transitions. [2022-11-21 13:55:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-21 13:55:19,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:55:19,195 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:55:19,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:55:19,196 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:55:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:55:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash 23935025, now seen corresponding path program 1 times [2022-11-21 13:55:19,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:55:19,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091582959] [2022-11-21 13:55:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:55:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:55:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:55:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:55:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:55:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:55:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:55:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:55:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:55:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:55:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:55:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:55:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:55:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:55:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 13:55:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 13:55:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 13:55:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 13:55:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 13:55:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-21 13:55:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 13:55:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:55:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:55:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:55:20,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:55:20,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091582959] [2022-11-21 13:55:20,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091582959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:55:20,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:55:20,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 13:55:20,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135575724] [2022-11-21 13:55:20,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:55:20,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 13:55:20,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:55:20,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 13:55:20,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:55:20,250 INFO L87 Difference]: Start difference. First operand 3592 states and 5316 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 13:55:26,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:28,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:30,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:32,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:34,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:36,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:48,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:55:52,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:01,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:56:01,353 INFO L93 Difference]: Finished difference Result 10915 states and 16254 transitions. [2022-11-21 13:56:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 13:56:01,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 194 [2022-11-21 13:56:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:56:01,414 INFO L225 Difference]: With dead ends: 10915 [2022-11-21 13:56:01,415 INFO L226 Difference]: Without dead ends: 7345 [2022-11-21 13:56:01,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 13:56:01,443 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 5541 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 12652 mSolverCounterSat, 5339 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6012 SdHoareTripleChecker+Valid, 5016 SdHoareTripleChecker+Invalid, 17993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5339 IncrementalHoareTripleChecker+Valid, 12652 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time [2022-11-21 13:56:01,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6012 Valid, 5016 Invalid, 17993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5339 Valid, 12652 Invalid, 2 Unknown, 0 Unchecked, 39.9s Time] [2022-11-21 13:56:01,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2022-11-21 13:56:02,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 7112. [2022-11-21 13:56:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 4399 states have (on average 1.298022277790407) internal successors, (5710), 4501 states have internal predecessors, (5710), 2391 states have call successors, (2391), 315 states have call predecessors, (2391), 321 states have return successors, (2442), 2339 states have call predecessors, (2442), 2390 states have call successors, (2442) [2022-11-21 13:56:02,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10543 transitions. [2022-11-21 13:56:02,186 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10543 transitions. Word has length 194 [2022-11-21 13:56:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:56:02,187 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 10543 transitions. [2022-11-21 13:56:02,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 13:56:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10543 transitions. [2022-11-21 13:56:02,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-21 13:56:02,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:56:02,201 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:02,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:56:02,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:56:02,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1298246393, now seen corresponding path program 1 times [2022-11-21 13:56:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:02,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561347740] [2022-11-21 13:56:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:56:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:56:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:56:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:56:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:56:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:56:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:56:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 13:56:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 13:56:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 13:56:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-21 13:56:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 13:56:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 13:56:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-21 13:56:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:56:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:56:03,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:03,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561347740] [2022-11-21 13:56:03,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561347740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:03,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:03,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 13:56:03,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734204154] [2022-11-21 13:56:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:03,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 13:56:03,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:03,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 13:56:03,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:56:03,198 INFO L87 Difference]: Start difference. First operand 7112 states and 10543 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 13:56:09,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:11,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:13,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:14,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:15,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:18,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:30,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:31,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:56:42,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:56:42,127 INFO L93 Difference]: Finished difference Result 21699 states and 32358 transitions. [2022-11-21 13:56:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 13:56:42,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 193 [2022-11-21 13:56:42,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:56:42,261 INFO L225 Difference]: With dead ends: 21699 [2022-11-21 13:56:42,261 INFO L226 Difference]: Without dead ends: 14609 [2022-11-21 13:56:42,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 13:56:42,317 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 5557 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 12622 mSolverCounterSat, 5345 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6029 SdHoareTripleChecker+Valid, 5014 SdHoareTripleChecker+Invalid, 17968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5345 IncrementalHoareTripleChecker+Valid, 12622 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-21 13:56:42,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6029 Valid, 5014 Invalid, 17968 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5345 Valid, 12622 Invalid, 1 Unknown, 0 Unchecked, 37.4s Time] [2022-11-21 13:56:42,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14609 states. [2022-11-21 13:56:43,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14609 to 14154. [2022-11-21 13:56:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14154 states, 8767 states have (on average 1.2980495038211475) internal successors, (11380), 8970 states have internal predecessors, (11380), 4744 states have call successors, (4744), 628 states have call predecessors, (4744), 642 states have return successors, (4889), 4643 states have call predecessors, (4889), 4743 states have call successors, (4889) [2022-11-21 13:56:43,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14154 states to 14154 states and 21013 transitions. [2022-11-21 13:56:43,985 INFO L78 Accepts]: Start accepts. Automaton has 14154 states and 21013 transitions. Word has length 193 [2022-11-21 13:56:43,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:56:43,986 INFO L495 AbstractCegarLoop]: Abstraction has 14154 states and 21013 transitions. [2022-11-21 13:56:43,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 13:56:43,988 INFO L276 IsEmpty]: Start isEmpty. Operand 14154 states and 21013 transitions. [2022-11-21 13:56:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-21 13:56:44,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:56:44,053 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:56:44,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:56:44,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:44,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1444005253, now seen corresponding path program 1 times [2022-11-21 13:56:44,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:44,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266045276] [2022-11-21 13:56:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:44,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:56:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:44,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:44,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:56:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:56:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:56:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:56:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:56:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:56:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:56:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 13:56:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 13:56:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 13:56:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-21 13:56:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 13:56:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 13:56:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:56:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 13:56:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 13:56:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 13:56:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:56:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-21 13:56:45,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:45,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266045276] [2022-11-21 13:56:45,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266045276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:45,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:45,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 13:56:45,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983285256] [2022-11-21 13:56:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:45,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 13:56:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:45,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 13:56:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:56:45,317 INFO L87 Difference]: Start difference. First operand 14154 states and 21013 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 13:56:51,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:57:05,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 13:57:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:57:18,618 INFO L93 Difference]: Finished difference Result 42802 states and 63891 transitions. [2022-11-21 13:57:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 13:57:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 217 [2022-11-21 13:57:18,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:57:18,855 INFO L225 Difference]: With dead ends: 42802 [2022-11-21 13:57:18,855 INFO L226 Difference]: Without dead ends: 28670 [2022-11-21 13:57:18,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 13:57:18,961 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 5358 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 12645 mSolverCounterSat, 5305 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5828 SdHoareTripleChecker+Valid, 5015 SdHoareTripleChecker+Invalid, 17952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5305 IncrementalHoareTripleChecker+Valid, 12645 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:57:18,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5828 Valid, 5015 Invalid, 17952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5305 Valid, 12645 Invalid, 2 Unknown, 0 Unchecked, 31.0s Time] [2022-11-21 13:57:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28670 states. [2022-11-21 13:57:21,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28670 to 27812. [2022-11-21 13:57:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27812 states, 17218 states have (on average 1.2968405157393426) internal successors, (22329), 17614 states have internal predecessors, (22329), 9323 states have call successors, (9323), 1240 states have call predecessors, (9323), 1270 states have return successors, (9694), 9128 states have call predecessors, (9694), 9322 states have call successors, (9694) [2022-11-21 13:57:22,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27812 states to 27812 states and 41346 transitions. [2022-11-21 13:57:22,171 INFO L78 Accepts]: Start accepts. Automaton has 27812 states and 41346 transitions. Word has length 217 [2022-11-21 13:57:22,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:57:22,173 INFO L495 AbstractCegarLoop]: Abstraction has 27812 states and 41346 transitions. [2022-11-21 13:57:22,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 13:57:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 27812 states and 41346 transitions. [2022-11-21 13:57:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-21 13:57:22,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:57:22,188 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:22,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:57:22,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:57:22,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:22,189 INFO L85 PathProgramCache]: Analyzing trace with hash -618899695, now seen corresponding path program 1 times [2022-11-21 13:57:22,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:22,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960667115] [2022-11-21 13:57:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:22,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:57:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:57:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:57:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:57:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:57:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:57:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:57:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 13:57:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 13:57:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-21 13:57:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-21 13:57:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-21 13:57:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 13:57:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 13:57:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-21 13:57:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:57:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-21 13:57:23,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:23,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960667115] [2022-11-21 13:57:23,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960667115] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:57:23,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518403770] [2022-11-21 13:57:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:23,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:57:23,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:57:23,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:57:23,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:57:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:24,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 13:57:25,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:57:25,226 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:57:25,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:57:25,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518403770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:25,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:57:25,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-21 13:57:25,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024547325] [2022-11-21 13:57:25,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:25,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:57:25,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:25,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:57:25,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:57:25,234 INFO L87 Difference]: Start difference. First operand 27812 states and 41346 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:57:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:57:28,030 INFO L93 Difference]: Finished difference Result 69464 states and 103313 transitions. [2022-11-21 13:57:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 13:57:28,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 205 [2022-11-21 13:57:28,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:57:28,481 INFO L225 Difference]: With dead ends: 69464 [2022-11-21 13:57:28,481 INFO L226 Difference]: Without dead ends: 41674 [2022-11-21 13:57:28,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-21 13:57:28,648 INFO L413 NwaCegarLoop]: 4104 mSDtfsCounter, 2694 mSDsluCounter, 19046 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 23150 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:57:28,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 23150 Invalid, 82 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:57:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41674 states. [2022-11-21 13:57:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41674 to 41525. [2022-11-21 13:57:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41525 states, 25710 states have (on average 1.2971995332555426) internal successors, (33351), 26310 states have internal predecessors, (33351), 13912 states have call successors, (13912), 1849 states have call predecessors, (13912), 1902 states have return successors, (14559), 13619 states have call predecessors, (14559), 13911 states have call successors, (14559) [2022-11-21 13:57:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41525 states to 41525 states and 61822 transitions. [2022-11-21 13:57:32,941 INFO L78 Accepts]: Start accepts. Automaton has 41525 states and 61822 transitions. Word has length 205 [2022-11-21 13:57:32,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:57:32,942 INFO L495 AbstractCegarLoop]: Abstraction has 41525 states and 61822 transitions. [2022-11-21 13:57:32,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:57:32,943 INFO L276 IsEmpty]: Start isEmpty. Operand 41525 states and 61822 transitions. [2022-11-21 13:57:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-21 13:57:32,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:57:32,976 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:33,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:57:33,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:57:33,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:57:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash 680156939, now seen corresponding path program 1 times [2022-11-21 13:57:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:33,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774316454] [2022-11-21 13:57:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:57:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:57:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:57:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:57:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:57:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:57:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:57:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 13:57:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 13:57:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 13:57:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 13:57:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-21 13:57:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-21 13:57:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-21 13:57:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 13:57:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:57:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,803 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:57:34,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:34,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774316454] [2022-11-21 13:57:34,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774316454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:57:34,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147142158] [2022-11-21 13:57:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:34,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:57:34,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:57:34,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:57:34,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:57:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:36,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 13:57:36,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:57:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:57:36,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:57:36,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147142158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:36,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:57:36,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-21 13:57:36,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637334919] [2022-11-21 13:57:36,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:36,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:57:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:57:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-21 13:57:36,242 INFO L87 Difference]: Start difference. First operand 41525 states and 61822 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:57:39,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:57:39,746 INFO L93 Difference]: Finished difference Result 96943 states and 144311 transitions. [2022-11-21 13:57:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 13:57:39,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 206 [2022-11-21 13:57:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:57:40,143 INFO L225 Difference]: With dead ends: 96943 [2022-11-21 13:57:40,143 INFO L226 Difference]: Without dead ends: 55440 [2022-11-21 13:57:40,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-21 13:57:40,636 INFO L413 NwaCegarLoop]: 4113 mSDtfsCounter, 2694 mSDsluCounter, 19070 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 23183 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:57:40,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 23183 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:57:40,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55440 states. [2022-11-21 13:57:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55440 to 55270. [2022-11-21 13:57:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55270 states, 34222 states have (on average 1.2972064753667232) internal successors, (44393), 35042 states have internal predecessors, (44393), 18501 states have call successors, (18501), 2458 states have call predecessors, (18501), 2546 states have return successors, (19436), 18106 states have call predecessors, (19436), 18500 states have call successors, (19436) [2022-11-21 13:57:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55270 states to 55270 states and 82330 transitions. [2022-11-21 13:57:44,784 INFO L78 Accepts]: Start accepts. Automaton has 55270 states and 82330 transitions. Word has length 206 [2022-11-21 13:57:44,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:57:44,785 INFO L495 AbstractCegarLoop]: Abstraction has 55270 states and 82330 transitions. [2022-11-21 13:57:44,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:57:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 55270 states and 82330 transitions. [2022-11-21 13:57:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-21 13:57:44,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:57:44,819 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:44,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:57:45,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-21 13:57:45,032 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:57:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:45,033 INFO L85 PathProgramCache]: Analyzing trace with hash 189862168, now seen corresponding path program 1 times [2022-11-21 13:57:45,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:45,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301966394] [2022-11-21 13:57:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:45,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:57:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:57:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:57:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:57:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:57:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:57:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:57:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 13:57:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 13:57:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 13:57:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 13:57:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 13:57:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-21 13:57:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 13:57:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-21 13:57:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:57:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:57:46,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:46,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301966394] [2022-11-21 13:57:46,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301966394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:57:46,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173092109] [2022-11-21 13:57:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:46,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:57:46,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:57:46,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:57:46,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 13:57:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:47,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 13:57:47,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:57:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:57:47,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:57:47,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173092109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:47,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:57:47,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-21 13:57:47,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310451158] [2022-11-21 13:57:47,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:47,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:57:47,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:47,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:57:47,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-21 13:57:47,798 INFO L87 Difference]: Start difference. First operand 55270 states and 82330 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:57:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:57:52,101 INFO L93 Difference]: Finished difference Result 124422 states and 185309 transitions. [2022-11-21 13:57:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 13:57:52,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 207 [2022-11-21 13:57:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:57:52,573 INFO L225 Difference]: With dead ends: 124422 [2022-11-21 13:57:52,573 INFO L226 Difference]: Without dead ends: 69174 [2022-11-21 13:57:52,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-21 13:57:52,874 INFO L413 NwaCegarLoop]: 4331 mSDtfsCounter, 2694 mSDsluCounter, 19942 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 24273 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:57:52,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 24273 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:57:52,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69174 states. [2022-11-21 13:57:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69174 to 55292. [2022-11-21 13:57:57,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55292 states, 34238 states have (on average 1.2970675857234653) internal successors, (44409), 35060 states have internal predecessors, (44409), 18501 states have call successors, (18501), 2458 states have call predecessors, (18501), 2552 states have return successors, (19445), 18110 states have call predecessors, (19445), 18500 states have call successors, (19445) [2022-11-21 13:57:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55292 states to 55292 states and 82355 transitions. [2022-11-21 13:57:57,686 INFO L78 Accepts]: Start accepts. Automaton has 55292 states and 82355 transitions. Word has length 207 [2022-11-21 13:57:57,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:57:57,687 INFO L495 AbstractCegarLoop]: Abstraction has 55292 states and 82355 transitions. [2022-11-21 13:57:57,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:57:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 55292 states and 82355 transitions. [2022-11-21 13:57:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-21 13:57:57,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:57:57,723 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:57,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:57:57,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 13:57:57,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:57:57,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:57,938 INFO L85 PathProgramCache]: Analyzing trace with hash 64248690, now seen corresponding path program 1 times [2022-11-21 13:57:57,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:57,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094889319] [2022-11-21 13:57:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:57:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:57:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:57:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:57:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:57:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:57:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:57:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:57:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 13:57:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 13:57:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 13:57:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-21 13:57:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 13:57:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 13:57:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 13:57:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-21 13:57:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:57:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:57:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:57:58,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:58,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094889319] [2022-11-21 13:57:58,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094889319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:57:58,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481626759] [2022-11-21 13:57:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:58,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:57:58,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:57:58,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:57:58,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 13:58:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:00,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 3282 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 13:58:00,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:58:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-21 13:58:00,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:58:00,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481626759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:00,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:58:00,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-21 13:58:00,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582289894] [2022-11-21 13:58:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:00,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:58:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:58:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-21 13:58:00,697 INFO L87 Difference]: Start difference. First operand 55292 states and 82355 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:58:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:58:04,869 INFO L93 Difference]: Finished difference Result 124452 states and 185342 transitions. [2022-11-21 13:58:04,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 13:58:04,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 208 [2022-11-21 13:58:04,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:58:05,371 INFO L225 Difference]: With dead ends: 124452 [2022-11-21 13:58:05,372 INFO L226 Difference]: Without dead ends: 69182 [2022-11-21 13:58:05,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-21 13:58:05,676 INFO L413 NwaCegarLoop]: 4321 mSDtfsCounter, 2694 mSDsluCounter, 19902 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 24223 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:58:05,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 24223 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:58:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69182 states. [2022-11-21 13:58:09,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69182 to 55305. [2022-11-21 13:58:09,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55305 states, 34248 states have (on average 1.2969808455968233) internal successors, (44419), 35069 states have internal predecessors, (44419), 18501 states have call successors, (18501), 2458 states have call predecessors, (18501), 2555 states have return successors, (19448), 18114 states have call predecessors, (19448), 18500 states have call successors, (19448) [2022-11-21 13:58:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55305 states to 55305 states and 82368 transitions. [2022-11-21 13:58:10,402 INFO L78 Accepts]: Start accepts. Automaton has 55305 states and 82368 transitions. Word has length 208 [2022-11-21 13:58:10,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:58:10,403 INFO L495 AbstractCegarLoop]: Abstraction has 55305 states and 82368 transitions. [2022-11-21 13:58:10,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 13:58:10,403 INFO L276 IsEmpty]: Start isEmpty. Operand 55305 states and 82368 transitions. [2022-11-21 13:58:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-21 13:58:10,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:58:10,427 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:10,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:58:10,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:58:10,642 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:58:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1766343388, now seen corresponding path program 1 times [2022-11-21 13:58:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:10,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447149914] [2022-11-21 13:58:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:58:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:58:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 13:58:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:58:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 13:58:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:58:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 13:58:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:58:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 13:58:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 13:58:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 13:58:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 13:58:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 13:58:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 13:58:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-21 13:58:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 13:58:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 13:58:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-21 13:58:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 13:58:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-21 13:58:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-21 13:58:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:58:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:58:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-21 13:58:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:11,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447149914] [2022-11-21 13:58:11,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447149914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:58:11,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663253540] [2022-11-21 13:58:11,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:11,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:58:11,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:58:11,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:58:11,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbd36c-dc8e-49e9-ad74-0debf09c8dc0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 13:58:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:13,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 3349 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 13:58:13,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:58:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-21 13:58:13,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:58:14,227 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-21 13:58:14,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663253540] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:58:14,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:58:14,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-11-21 13:58:14,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585231359] [2022-11-21 13:58:14,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:58:14,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-21 13:58:14,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:14,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-21 13:58:14,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-11-21 13:58:14,232 INFO L87 Difference]: Start difference. First operand 55305 states and 82368 transitions. Second operand has 24 states, 24 states have (on average 6.75) internal successors, (162), 15 states have internal predecessors, (162), 5 states have call successors, (49), 9 states have call predecessors, (49), 7 states have return successors, (41), 6 states have call predecessors, (41), 5 states have call successors, (41)