./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:39:49,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:39:49,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:39:49,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:39:49,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:39:49,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:39:49,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:39:49,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:39:49,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:39:49,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:39:49,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:39:49,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:39:49,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:39:49,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:39:49,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:39:49,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:39:49,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:39:49,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:39:49,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:39:49,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:39:49,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:39:49,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:39:49,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:39:49,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:39:49,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:39:49,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:39:49,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:39:49,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:39:49,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:39:49,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:39:49,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:39:49,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:39:49,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:39:49,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:39:49,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:39:49,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:39:49,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:39:49,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:39:49,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:39:49,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:39:49,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:39:49,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:39:49,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:39:49,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:39:49,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:39:49,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:39:49,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:39:49,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:39:49,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:39:49,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:39:49,692 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:39:49,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:39:49,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:39:49,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:39:49,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:39:49,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:39:49,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:39:49,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:39:49,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:39:49,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:39:49,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:39:49,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:39:49,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:39:49,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:39:49,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:39:49,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:39:49,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:39:49,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:39:49,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:39:49,695 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:39:49,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:39:49,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:39:49,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:39:49,696 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_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2021-11-13 17:39:49,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:39:49,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:39:49,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:39:49,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:39:49,999 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:39:50,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-13 17:39:50,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/data/c625ee639/c91767237c4a4dfe8650617045e83a6c/FLAG36a31a663 [2021-11-13 17:39:51,144 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:39:51,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-13 17:39:51,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/data/c625ee639/c91767237c4a4dfe8650617045e83a6c/FLAG36a31a663 [2021-11-13 17:39:51,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/data/c625ee639/c91767237c4a4dfe8650617045e83a6c [2021-11-13 17:39:51,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:39:51,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:39:51,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:39:51,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:39:51,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:39:51,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:39:51" (1/1) ... [2021-11-13 17:39:51,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61185a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:51, skipping insertion in model container [2021-11-13 17:39:51,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:39:51" (1/1) ... [2021-11-13 17:39:51,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:39:51,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:39:55,667 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2021-11-13 17:39:56,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:39:56,129 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:39:56,923 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2021-11-13 17:39:56,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:39:57,262 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:39:57,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57 WrapperNode [2021-11-13 17:39:57,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:39:57,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:39:57,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:39:57,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:39:57,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:57,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:58,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:39:58,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:39:58,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:39:58,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:39:58,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:58,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:58,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:58,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:59,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:59,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:59,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:59,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:39:59,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:39:59,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:39:59,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:39:59,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (1/1) ... [2021-11-13 17:39:59,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:39:59,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:39:59,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:39:59,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e8ff2cd-eaea-4f7d-a03f-986cb302c67b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:39:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 17:39:59,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 17:39:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2021-11-13 17:39:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2021-11-13 17:39:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-13 17:39:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-13 17:39:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-13 17:39:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:39:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:39:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2021-11-13 17:39:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2021-11-13 17:39:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-11-13 17:39:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-11-13 17:39:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:39:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:39:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2021-11-13 17:39:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2021-11-13 17:39:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-13 17:39:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-13 17:39:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2021-11-13 17:39:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2021-11-13 17:39:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2021-11-13 17:39:59,423 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2021-11-13 17:39:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2021-11-13 17:39:59,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2021-11-13 17:39:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2021-11-13 17:39:59,423 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2021-11-13 17:39:59,424 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2021-11-13 17:39:59,424 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2021-11-13 17:39:59,424 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2021-11-13 17:39:59,424 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2021-11-13 17:39:59,424 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2021-11-13 17:39:59,424 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2021-11-13 17:39:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-13 17:39:59,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-13 17:39:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2021-11-13 17:39:59,425 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2021-11-13 17:39:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2021-11-13 17:39:59,425 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2021-11-13 17:39:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 17:39:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 17:39:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-13 17:39:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-13 17:39:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:39:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2021-11-13 17:39:59,427 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2021-11-13 17:39:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2021-11-13 17:39:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2021-11-13 17:39:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2021-11-13 17:39:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2021-11-13 17:39:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:39:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2021-11-13 17:39:59,429 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2021-11-13 17:39:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-13 17:39:59,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-13 17:39:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-13 17:39:59,430 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-13 17:39:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2021-11-13 17:39:59,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2021-11-13 17:39:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:39:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-13 17:39:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-13 17:39:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2021-11-13 17:39:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2021-11-13 17:39:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2021-11-13 17:39:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2021-11-13 17:39:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-13 17:39:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-13 17:39:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:39:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:39:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:39:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2021-11-13 17:39:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2021-11-13 17:39:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-13 17:39:59,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-13 17:39:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-11-13 17:39:59,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-11-13 17:39:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2021-11-13 17:39:59,436 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2021-11-13 17:39:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-13 17:39:59,436 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-13 17:39:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2021-11-13 17:39:59,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2021-11-13 17:39:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2021-11-13 17:39:59,437 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2021-11-13 17:39:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-13 17:39:59,437 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-13 17:39:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2021-11-13 17:39:59,438 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2021-11-13 17:39:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2021-11-13 17:39:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2021-11-13 17:39:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 17:39:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 17:39:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:39:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2021-11-13 17:39:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2021-11-13 17:39:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-13 17:39:59,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-13 17:39:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 17:39:59,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 17:39:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 17:39:59,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 17:39:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:39:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 17:39:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-13 17:39:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-13 17:39:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2021-11-13 17:39:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2021-11-13 17:39:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2021-11-13 17:39:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2021-11-13 17:39:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2021-11-13 17:39:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2021-11-13 17:39:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2021-11-13 17:39:59,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2021-11-13 17:39:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 17:39:59,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 17:39:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-13 17:39:59,445 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-13 17:39:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-11-13 17:39:59,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-11-13 17:39:59,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-13 17:39:59,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-13 17:39:59,450 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2021-11-13 17:39:59,450 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2021-11-13 17:39:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 17:39:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 17:39:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-13 17:39:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-13 17:39:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2021-11-13 17:39:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2021-11-13 17:39:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-13 17:39:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-13 17:39:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2021-11-13 17:39:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2021-11-13 17:39:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:39:59,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:39:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-13 17:39:59,453 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-13 17:39:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 17:39:59,453 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 17:39:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:39:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:39:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:39:59,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:39:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-13 17:39:59,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-13 17:39:59,454 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-13 17:39:59,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-13 17:39:59,454 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2021-11-13 17:39:59,454 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2021-11-13 17:39:59,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-13 17:39:59,454 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-13 17:39:59,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-13 17:39:59,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-13 17:39:59,455 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2021-11-13 17:39:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2021-11-13 17:39:59,455 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-13 17:39:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-13 17:39:59,455 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2021-11-13 17:39:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2021-11-13 17:39:59,455 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2021-11-13 17:39:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2021-11-13 17:39:59,455 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2021-11-13 17:39:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2021-11-13 17:39:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 17:39:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 17:39:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:39:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:39:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2021-11-13 17:39:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2021-11-13 17:39:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 17:39:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 17:39:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:39:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:39:59,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-13 17:39:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-13 17:39:59,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 17:39:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 17:39:59,457 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-13 17:39:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-13 17:39:59,457 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2021-11-13 17:39:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2021-11-13 17:39:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:39:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 17:39:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 17:39:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2021-11-13 17:39:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2021-11-13 17:39:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:39:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2021-11-13 17:39:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2021-11-13 17:39:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2021-11-13 17:39:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2021-11-13 17:39:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2021-11-13 17:39:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2021-11-13 17:39:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2021-11-13 17:39:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2021-11-13 17:39:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-13 17:39:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-13 17:39:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:39:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 17:39:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 17:39:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2021-11-13 17:39:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2021-11-13 17:39:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2021-11-13 17:39:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2021-11-13 17:39:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-13 17:39:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-13 17:39:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2021-11-13 17:39:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2021-11-13 17:39:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 17:39:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 17:39:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-13 17:39:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-13 17:39:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2021-11-13 17:39:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2021-11-13 17:39:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2021-11-13 17:39:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2021-11-13 17:39:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2021-11-13 17:39:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2021-11-13 17:39:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-13 17:39:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-13 17:39:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2021-11-13 17:39:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2021-11-13 17:39:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2021-11-13 17:39:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2021-11-13 17:39:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-11-13 17:39:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-11-13 17:39:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2021-11-13 17:39:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2021-11-13 17:39:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-13 17:39:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-13 17:39:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2021-11-13 17:39:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2021-11-13 17:39:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2021-11-13 17:39:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2021-11-13 17:39:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:39:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:39:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2021-11-13 17:39:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2021-11-13 17:39:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2021-11-13 17:39:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2021-11-13 17:39:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:39:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2021-11-13 17:39:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2021-11-13 17:39:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2021-11-13 17:39:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2021-11-13 17:39:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:39:59,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:39:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2021-11-13 17:39:59,465 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2021-11-13 17:39:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2021-11-13 17:39:59,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2021-11-13 17:39:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-13 17:39:59,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-13 17:39:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-11-13 17:39:59,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-11-13 17:39:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-13 17:39:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-13 17:39:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-13 17:39:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-13 17:39:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-11-13 17:39:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-11-13 17:39:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2021-11-13 17:39:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2021-11-13 17:39:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 17:39:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 17:39:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-11-13 17:39:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-11-13 17:39:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2021-11-13 17:39:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2021-11-13 17:39:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2021-11-13 17:39:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2021-11-13 17:39:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2021-11-13 17:39:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2021-11-13 17:39:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2021-11-13 17:39:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2021-11-13 17:39:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2021-11-13 17:39:59,467 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2021-11-13 17:39:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:39:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2021-11-13 17:39:59,468 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2021-11-13 17:39:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2021-11-13 17:39:59,468 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2021-11-13 17:40:10,404 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:47:31,198 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:47:31,199 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 17:47:31,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:47:31 BoogieIcfgContainer [2021-11-13 17:47:31,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:47:31,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:47:31,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:47:31,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:47:31,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:39:51" (1/3) ... [2021-11-13 17:47:31,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387cee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:47:31, skipping insertion in model container [2021-11-13 17:47:31,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:39:57" (2/3) ... [2021-11-13 17:47:31,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387cee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:47:31, skipping insertion in model container [2021-11-13 17:47:31,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:47:31" (3/3) ... [2021-11-13 17:47:31,219 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-13 17:47:31,226 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:47:31,226 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:47:31,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:47:31,329 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:47:31,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:47:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 2657 states, 1872 states have (on average 1.3707264957264957) internal successors, (2566), 1907 states have internal predecessors, (2566), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) [2021-11-13 17:47:31,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 17:47:31,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:31,463 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 17:47:31,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:47:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash 396950189, now seen corresponding path program 1 times [2021-11-13 17:47:31,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:31,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653998113] [2021-11-13 17:47:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:31,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:47:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:47:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:47:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:47:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:47:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:47:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:47:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:47:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 17:47:33,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:33,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653998113] [2021-11-13 17:47:33,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653998113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:33,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:33,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:47:33,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327245271] [2021-11-13 17:47:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:33,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:33,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:33,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:47:33,585 INFO L87 Difference]: Start difference. First operand has 2657 states, 1872 states have (on average 1.3707264957264957) internal successors, (2566), 1907 states have internal predecessors, (2566), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 17:47:35,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:37,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:40,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:43,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:45,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:47,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:49,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:51,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:57,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:04,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:11,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:17,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:19,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:23,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:25,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:27,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:28,764 INFO L93 Difference]: Finished difference Result 5616 states and 8482 transitions. [2021-11-13 17:48:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:48:28,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2021-11-13 17:48:28,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:28,821 INFO L225 Difference]: With dead ends: 5616 [2021-11-13 17:48:28,821 INFO L226 Difference]: Without dead ends: 2942 [2021-11-13 17:48:28,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:48:28,849 INFO L933 BasicCegarLoop]: 3685 mSDtfsCounter, 1091 mSDsluCounter, 5840 mSDsCounter, 0 mSdLazyCounter, 2731 mSolverCounterSat, 1550 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51891.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 9525 SdHoareTripleChecker+Invalid, 4296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 106.93ms SdHoareTripleChecker+Time, 1550 IncrementalHoareTripleChecker+Valid, 2731 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54504.59ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:28,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 9525 Invalid, 4296 Unknown, 0 Unchecked, 106.93ms Time], IncrementalHoareTripleChecker [1550 Valid, 2731 Invalid, 15 Unknown, 0 Unchecked, 54504.59ms Time] [2021-11-13 17:48:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-11-13 17:48:29,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2635. [2021-11-13 17:48:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 1867 states have (on average 1.3615425816818425) internal successors, (2542), 1885 states have internal predecessors, (2542), 636 states have call successors, (636), 132 states have call predecessors, (636), 131 states have return successors, (626), 625 states have call predecessors, (626), 626 states have call successors, (626) [2021-11-13 17:48:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3804 transitions. [2021-11-13 17:48:29,153 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3804 transitions. Word has length 98 [2021-11-13 17:48:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:29,158 INFO L470 AbstractCegarLoop]: Abstraction has 2635 states and 3804 transitions. [2021-11-13 17:48:29,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 17:48:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3804 transitions. [2021-11-13 17:48:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 17:48:29,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:29,167 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 17:48:29,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:48:29,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:48:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 230108723, now seen corresponding path program 1 times [2021-11-13 17:48:29,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:29,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394949399] [2021-11-13 17:48:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:29,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:48:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:48:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:48:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:48:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:48:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:48:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:48:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:48:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:48:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:48:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:48:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:48:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:48:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 17:48:30,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:30,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394949399] [2021-11-13 17:48:30,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394949399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:30,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:30,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:48:30,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260511146] [2021-11-13 17:48:30,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:30,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:48:30,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:30,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:48:30,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:48:30,393 INFO L87 Difference]: Start difference. First operand 2635 states and 3804 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-13 17:48:32,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:34,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:36,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:38,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:42,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:45,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:52,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:48:59,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:01,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:03,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:05,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:10,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:14,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:24,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:32,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:34,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:36,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:40,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:42,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:44,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:45,058 INFO L93 Difference]: Finished difference Result 8352 states and 12186 transitions. [2021-11-13 17:49:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:49:45,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 98 [2021-11-13 17:49:45,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:45,115 INFO L225 Difference]: With dead ends: 8352 [2021-11-13 17:49:45,115 INFO L226 Difference]: Without dead ends: 5732 [2021-11-13 17:49:45,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:49:45,132 INFO L933 BasicCegarLoop]: 4170 mSDtfsCounter, 5413 mSDsluCounter, 9742 mSDsCounter, 0 mSdLazyCounter, 4636 mSolverCounterSat, 3410 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70795.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5838 SdHoareTripleChecker+Valid, 13912 SdHoareTripleChecker+Invalid, 8064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 117.21ms SdHoareTripleChecker+Time, 3410 IncrementalHoareTripleChecker+Valid, 4636 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73781.29ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:45,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5838 Valid, 13912 Invalid, 8064 Unknown, 0 Unchecked, 117.21ms Time], IncrementalHoareTripleChecker [3410 Valid, 4636 Invalid, 18 Unknown, 0 Unchecked, 73781.29ms Time] [2021-11-13 17:49:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5732 states. [2021-11-13 17:49:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5732 to 5118. [2021-11-13 17:49:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3638 states have (on average 1.3653106102253987) internal successors, (4967), 3665 states have internal predecessors, (4967), 1220 states have call successors, (1220), 258 states have call predecessors, (1220), 259 states have return successors, (1220), 1208 states have call predecessors, (1220), 1210 states have call successors, (1220) [2021-11-13 17:49:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7407 transitions. [2021-11-13 17:49:45,434 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7407 transitions. Word has length 98 [2021-11-13 17:49:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:45,435 INFO L470 AbstractCegarLoop]: Abstraction has 5118 states and 7407 transitions. [2021-11-13 17:49:45,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-13 17:49:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7407 transitions. [2021-11-13 17:49:45,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-13 17:49:45,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:45,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 17:49:45,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:49:45,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:49:45,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:45,440 INFO L85 PathProgramCache]: Analyzing trace with hash -996800530, now seen corresponding path program 1 times [2021-11-13 17:49:45,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:45,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068532497] [2021-11-13 17:49:45,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:45,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:49:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:49:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:49:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:49:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:49:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:49:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:49:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:49:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:49:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:49:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:49:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:49:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:49:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 17:49:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 17:49:46,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:46,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068532497] [2021-11-13 17:49:46,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068532497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:46,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:46,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:49:46,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857672305] [2021-11-13 17:49:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:46,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:49:46,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:46,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:49:46,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:49:46,600 INFO L87 Difference]: Start difference. First operand 5118 states and 7407 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:49:48,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:51,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:54,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:49:58,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:02,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:04,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:09,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:17,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:19,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:24,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:27,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:27,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:27,800 INFO L93 Difference]: Finished difference Result 16350 states and 23897 transitions. [2021-11-13 17:50:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:50:27,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2021-11-13 17:50:27,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:27,890 INFO L225 Difference]: With dead ends: 16350 [2021-11-13 17:50:27,890 INFO L226 Difference]: Without dead ends: 11247 [2021-11-13 17:50:27,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:50:27,923 INFO L933 BasicCegarLoop]: 4151 mSDtfsCounter, 6718 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 5093 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38498.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7145 SdHoareTripleChecker+Valid, 9833 SdHoareTripleChecker+Invalid, 7420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.74ms SdHoareTripleChecker+Time, 5093 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40505.46ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:27,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7145 Valid, 9833 Invalid, 7420 Unknown, 0 Unchecked, 57.74ms Time], IncrementalHoareTripleChecker [5093 Valid, 2317 Invalid, 10 Unknown, 0 Unchecked, 40505.46ms Time] [2021-11-13 17:50:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2021-11-13 17:50:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 10010. [2021-11-13 17:50:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 7117 states have (on average 1.368554166081214) internal successors, (9740), 7159 states have internal predecessors, (9740), 2385 states have call successors, (2385), 506 states have call predecessors, (2385), 507 states have return successors, (2395), 2370 states have call predecessors, (2395), 2375 states have call successors, (2395) [2021-11-13 17:50:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 14520 transitions. [2021-11-13 17:50:28,490 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 14520 transitions. Word has length 103 [2021-11-13 17:50:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:28,491 INFO L470 AbstractCegarLoop]: Abstraction has 10010 states and 14520 transitions. [2021-11-13 17:50:28,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:50:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 14520 transitions. [2021-11-13 17:50:28,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:50:28,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:28,502 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:28,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:50:28,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:50:28,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:28,503 INFO L85 PathProgramCache]: Analyzing trace with hash -935993056, now seen corresponding path program 1 times [2021-11-13 17:50:28,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:50:28,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130792612] [2021-11-13 17:50:28,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:28,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:50:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:50:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:50:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:50:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:50:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:50:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:50:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:50:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:50:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 17:50:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-13 17:50:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:50:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 17:50:29,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:50:29,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130792612] [2021-11-13 17:50:29,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130792612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:29,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:29,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:50:29,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557821427] [2021-11-13 17:50:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:29,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:50:29,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:50:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:50:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:50:29,531 INFO L87 Difference]: Start difference. First operand 10010 states and 14520 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:50:31,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:33,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:37,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:39,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:42,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:48,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:56,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:50:58,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:00,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:06,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:11,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:20,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:22,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:24,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:33,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:35,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:39,053 INFO L93 Difference]: Finished difference Result 32250 states and 47150 transitions. [2021-11-13 17:51:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:51:39,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2021-11-13 17:51:39,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:39,208 INFO L225 Difference]: With dead ends: 32250 [2021-11-13 17:51:39,208 INFO L226 Difference]: Without dead ends: 22255 [2021-11-13 17:51:39,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:51:39,272 INFO L933 BasicCegarLoop]: 4195 mSDtfsCounter, 5486 mSDsluCounter, 9824 mSDsCounter, 0 mSdLazyCounter, 4618 mSolverCounterSat, 3425 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65772.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5918 SdHoareTripleChecker+Valid, 14019 SdHoareTripleChecker+Invalid, 8057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.50ms SdHoareTripleChecker+Time, 3425 IncrementalHoareTripleChecker+Valid, 4618 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68573.54ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:39,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5918 Valid, 14019 Invalid, 8057 Unknown, 0 Unchecked, 84.50ms Time], IncrementalHoareTripleChecker [3425 Valid, 4618 Invalid, 14 Unknown, 0 Unchecked, 68573.54ms Time] [2021-11-13 17:51:39,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22255 states. [2021-11-13 17:51:40,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22255 to 19804. [2021-11-13 17:51:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19804 states, 14088 states have (on average 1.3687535491198184) internal successors, (19283), 14161 states have internal predecessors, (19283), 4705 states have call successors, (4705), 1008 states have call predecessors, (4705), 1010 states have return successors, (4735), 4684 states have call predecessors, (4735), 4695 states have call successors, (4735) [2021-11-13 17:51:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19804 states to 19804 states and 28723 transitions. [2021-11-13 17:51:40,322 INFO L78 Accepts]: Start accepts. Automaton has 19804 states and 28723 transitions. Word has length 113 [2021-11-13 17:51:40,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:40,324 INFO L470 AbstractCegarLoop]: Abstraction has 19804 states and 28723 transitions. [2021-11-13 17:51:40,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:51:40,325 INFO L276 IsEmpty]: Start isEmpty. Operand 19804 states and 28723 transitions. [2021-11-13 17:51:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:51:40,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:40,328 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 17:51:40,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:51:40,328 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:40,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1980066253, now seen corresponding path program 1 times [2021-11-13 17:51:40,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:40,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498212659] [2021-11-13 17:51:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:40,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:51:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:51:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:51:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:51:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:51:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:51:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:51:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:51:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 17:51:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:51:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:41,535 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 17:51:41,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:51:41,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498212659] [2021-11-13 17:51:41,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498212659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:41,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:41,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:51:41,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486327673] [2021-11-13 17:51:41,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:41,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:51:41,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:51:41,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:51:41,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:51:41,539 INFO L87 Difference]: Start difference. First operand 19804 states and 28723 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 17:51:43,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:45,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:49,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:51:51,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:01,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:10,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:20,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:27,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:29,410 INFO L93 Difference]: Finished difference Result 62036 states and 90801 transitions. [2021-11-13 17:52:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:52:29,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2021-11-13 17:52:29,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:29,656 INFO L225 Difference]: With dead ends: 62036 [2021-11-13 17:52:29,656 INFO L226 Difference]: Without dead ends: 42247 [2021-11-13 17:52:29,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:52:29,744 INFO L933 BasicCegarLoop]: 4246 mSDtfsCounter, 6264 mSDsluCounter, 8125 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 4831 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43799.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6691 SdHoareTripleChecker+Valid, 12371 SdHoareTripleChecker+Invalid, 8339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.03ms SdHoareTripleChecker+Time, 4831 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46163.42ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:29,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6691 Valid, 12371 Invalid, 8339 Unknown, 0 Unchecked, 80.03ms Time], IncrementalHoareTripleChecker [4831 Valid, 3500 Invalid, 8 Unknown, 0 Unchecked, 46163.42ms Time] [2021-11-13 17:52:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42247 states. [2021-11-13 17:52:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42247 to 36688. [2021-11-13 17:52:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36688 states, 26152 states have (on average 1.3751529519730805) internal successors, (35963), 26257 states have internal predecessors, (35963), 8649 states have call successors, (8649), 1876 states have call predecessors, (8649), 1886 states have return successors, (8727), 8628 states have call predecessors, (8727), 8639 states have call successors, (8727) [2021-11-13 17:52:31,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36688 states to 36688 states and 53339 transitions. [2021-11-13 17:52:31,499 INFO L78 Accepts]: Start accepts. Automaton has 36688 states and 53339 transitions. Word has length 113 [2021-11-13 17:52:31,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:31,500 INFO L470 AbstractCegarLoop]: Abstraction has 36688 states and 53339 transitions. [2021-11-13 17:52:31,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 17:52:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 36688 states and 53339 transitions. [2021-11-13 17:52:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-13 17:52:31,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:31,504 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 17:52:31,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:52:31,505 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:31,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:31,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1298565834, now seen corresponding path program 1 times [2021-11-13 17:52:31,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:31,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116103842] [2021-11-13 17:52:31,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:31,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:52:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:52:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:52:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 17:52:32,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:32,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116103842] [2021-11-13 17:52:32,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116103842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:32,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:32,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:52:32,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369770572] [2021-11-13 17:52:32,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:32,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:52:32,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:32,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:52:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:52:32,805 INFO L87 Difference]: Start difference. First operand 36688 states and 53339 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:52:34,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:37,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:40,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:42,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:50,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:58,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:07,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:14,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:18,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:20,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []