./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa --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 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:14:23,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:14:23,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:14:23,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:14:23,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:14:23,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:14:23,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:14:23,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:14:23,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:14:23,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:14:23,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:14:23,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:14:23,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:14:23,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:14:23,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:14:23,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:14:23,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:14:23,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:14:23,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:14:23,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:14:23,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:14:23,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:14:23,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:14:23,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:14:23,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:14:23,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:14:23,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:14:23,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:14:23,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:14:23,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:14:23,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:14:23,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:14:23,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:14:23,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:14:23,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:14:23,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:14:23,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:14:23,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:14:23,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:14:23,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:14:23,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:14:23,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 17:14:23,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:14:23,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:14:23,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:14:23,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:14:23,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:14:23,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:14:23,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:14:23,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:14:23,506 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:14:23,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:14:23,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:14:23,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:14:23,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:14:23,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:14:23,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:14:23,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:14:23,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:14:23,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:14:23,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:14:23,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:14:23,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:14:23,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:14:23,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:14:23,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:14:23,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:14:23,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:14:23,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:14:23,509 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:14:23,510 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:14:23,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:14:23,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:14:23,510 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_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 [2021-12-06 17:14:23,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:14:23,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:14:23,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:14:23,711 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:14:23,711 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:14:23,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-12-06 17:14:23,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/data/b63698559/94c03d9c95e54474870c42f5c6b01c03/FLAG79f32e775 [2021-12-06 17:14:24,529 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:14:24,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-12-06 17:14:24,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/data/b63698559/94c03d9c95e54474870c42f5c6b01c03/FLAG79f32e775 [2021-12-06 17:14:24,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/data/b63698559/94c03d9c95e54474870c42f5c6b01c03 [2021-12-06 17:14:24,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:14:24,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:14:24,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:14:24,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:14:24,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:14:24,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:14:24" (1/1) ... [2021-12-06 17:14:24,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3838f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:24, skipping insertion in model container [2021-12-06 17:14:24,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:14:24" (1/1) ... [2021-12-06 17:14:24,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:14:24,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:14:29,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2021-12-06 17:14:29,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:14:29,926 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:14:30,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2021-12-06 17:14:30,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:14:30,756 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:14:30,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30 WrapperNode [2021-12-06 17:14:30,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:14:30,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:14:30,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:14:30,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:14:30,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:30,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,249 INFO L137 Inliner]: procedures = 861, calls = 10351, calls flagged for inlining = 291, calls inlined = 261, statements flattened = 16765 [2021-12-06 17:14:31,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:14:31,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:14:31,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:14:31,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:14:31,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:14:31,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:14:31,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:14:31,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:14:31,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (1/1) ... [2021-12-06 17:14:31,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:14:31,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:14:31,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:14:31,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812e6554-aa99-4416-859b-5101e8633473/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:14:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-06 17:14:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2021-12-06 17:14:31,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2021-12-06 17:14:31,783 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2021-12-06 17:14:31,783 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2021-12-06 17:14:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2021-12-06 17:14:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2021-12-06 17:14:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2021-12-06 17:14:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2021-12-06 17:14:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-06 17:14:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-06 17:14:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2021-12-06 17:14:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2021-12-06 17:14:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2021-12-06 17:14:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2021-12-06 17:14:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2021-12-06 17:14:31,785 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2021-12-06 17:14:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2021-12-06 17:14:31,785 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2021-12-06 17:14:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2021-12-06 17:14:31,785 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2021-12-06 17:14:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 17:14:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2021-12-06 17:14:31,785 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2021-12-06 17:14:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2021-12-06 17:14:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2021-12-06 17:14:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2021-12-06 17:14:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2021-12-06 17:14:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2021-12-06 17:14:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2021-12-06 17:14:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 17:14:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 17:14:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2021-12-06 17:14:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2021-12-06 17:14:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2021-12-06 17:14:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2021-12-06 17:14:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 17:14:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 17:14:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2021-12-06 17:14:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2021-12-06 17:14:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2021-12-06 17:14:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2021-12-06 17:14:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2021-12-06 17:14:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2021-12-06 17:14:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 17:14:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 17:14:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-06 17:14:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-06 17:14:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2021-12-06 17:14:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2021-12-06 17:14:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:14:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2021-12-06 17:14:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2021-12-06 17:14:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2021-12-06 17:14:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2021-12-06 17:14:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2021-12-06 17:14:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2021-12-06 17:14:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 17:14:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 17:14:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-06 17:14:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-06 17:14:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2021-12-06 17:14:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2021-12-06 17:14:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2021-12-06 17:14:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2021-12-06 17:14:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2021-12-06 17:14:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2021-12-06 17:14:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2021-12-06 17:14:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2021-12-06 17:14:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 17:14:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 17:14:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:14:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2021-12-06 17:14:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2021-12-06 17:14:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:14:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 17:14:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 17:14:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:14:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2021-12-06 17:14:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2021-12-06 17:14:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2021-12-06 17:14:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2021-12-06 17:14:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2021-12-06 17:14:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2021-12-06 17:14:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2021-12-06 17:14:31,792 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2021-12-06 17:14:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2021-12-06 17:14:31,792 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2021-12-06 17:14:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2021-12-06 17:14:31,792 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2021-12-06 17:14:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:14:31,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:14:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2021-12-06 17:14:31,792 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2021-12-06 17:14:31,792 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 17:14:31,792 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 17:14:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2021-12-06 17:14:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2021-12-06 17:14:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2021-12-06 17:14:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2021-12-06 17:14:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 17:14:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-12-06 17:14:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-12-06 17:14:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2021-12-06 17:14:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2021-12-06 17:14:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2021-12-06 17:14:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2021-12-06 17:14:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2021-12-06 17:14:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2021-12-06 17:14:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2021-12-06 17:14:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2021-12-06 17:14:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2021-12-06 17:14:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2021-12-06 17:14:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2021-12-06 17:14:31,827 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2021-12-06 17:14:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2021-12-06 17:14:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2021-12-06 17:14:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 17:14:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 17:14:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2021-12-06 17:14:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2021-12-06 17:14:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 17:14:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 17:14:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2021-12-06 17:14:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2021-12-06 17:14:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2021-12-06 17:14:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2021-12-06 17:14:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2021-12-06 17:14:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2021-12-06 17:14:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 17:14:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 17:14:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 17:14:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 17:14:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2021-12-06 17:14:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2021-12-06 17:14:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:14:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 17:14:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 17:14:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2021-12-06 17:14:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2021-12-06 17:14:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:14:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2021-12-06 17:14:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2021-12-06 17:14:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 17:14:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 17:14:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-06 17:14:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-06 17:14:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2021-12-06 17:14:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2021-12-06 17:14:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2021-12-06 17:14:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2021-12-06 17:14:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2021-12-06 17:14:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2021-12-06 17:14:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2021-12-06 17:14:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2021-12-06 17:14:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2021-12-06 17:14:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2021-12-06 17:14:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2021-12-06 17:14:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2021-12-06 17:14:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2021-12-06 17:14:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2021-12-06 17:14:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2021-12-06 17:14:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2021-12-06 17:14:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2021-12-06 17:14:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2021-12-06 17:14:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2021-12-06 17:14:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2021-12-06 17:14:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2021-12-06 17:14:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2021-12-06 17:14:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:14:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-06 17:14:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-06 17:14:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 17:14:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 17:14:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2021-12-06 17:14:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2021-12-06 17:14:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2021-12-06 17:14:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2021-12-06 17:14:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2021-12-06 17:14:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2021-12-06 17:14:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-06 17:14:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-06 17:14:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2021-12-06 17:14:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2021-12-06 17:14:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2021-12-06 17:14:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2021-12-06 17:14:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-06 17:14:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-06 17:14:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2021-12-06 17:14:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2021-12-06 17:14:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2021-12-06 17:14:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2021-12-06 17:14:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2021-12-06 17:14:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2021-12-06 17:14:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2021-12-06 17:14:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2021-12-06 17:14:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2021-12-06 17:14:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2021-12-06 17:14:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-06 17:14:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-06 17:14:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2021-12-06 17:14:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2021-12-06 17:14:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2021-12-06 17:14:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2021-12-06 17:14:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2021-12-06 17:14:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2021-12-06 17:14:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2021-12-06 17:14:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2021-12-06 17:14:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2021-12-06 17:14:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2021-12-06 17:14:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2021-12-06 17:14:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2021-12-06 17:14:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2021-12-06 17:14:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2021-12-06 17:14:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2021-12-06 17:14:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2021-12-06 17:14:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 17:14:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 17:14:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 17:14:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 17:14:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2021-12-06 17:14:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2021-12-06 17:14:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2021-12-06 17:14:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2021-12-06 17:14:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2021-12-06 17:14:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2021-12-06 17:14:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2021-12-06 17:14:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2021-12-06 17:14:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2021-12-06 17:14:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2021-12-06 17:14:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 17:14:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 17:14:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2021-12-06 17:14:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2021-12-06 17:14:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2021-12-06 17:14:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2021-12-06 17:14:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-06 17:14:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-06 17:14:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 17:14:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 17:14:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:14:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2021-12-06 17:14:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2021-12-06 17:14:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2021-12-06 17:14:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2021-12-06 17:14:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2021-12-06 17:14:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2021-12-06 17:14:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-06 17:14:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-06 17:14:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-06 17:14:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-06 17:14:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2021-12-06 17:14:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2021-12-06 17:14:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 17:14:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2021-12-06 17:14:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2021-12-06 17:14:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2021-12-06 17:14:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2021-12-06 17:14:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 17:14:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2021-12-06 17:14:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2021-12-06 17:14:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2021-12-06 17:14:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2021-12-06 17:14:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2021-12-06 17:14:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2021-12-06 17:14:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2021-12-06 17:14:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2021-12-06 17:14:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 17:14:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 17:14:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 17:14:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 17:14:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-12-06 17:14:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-12-06 17:14:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2021-12-06 17:14:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2021-12-06 17:14:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2021-12-06 17:14:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2021-12-06 17:14:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-12-06 17:14:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-12-06 17:14:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2021-12-06 17:14:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2021-12-06 17:14:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2021-12-06 17:14:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2021-12-06 17:14:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 17:14:31,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 17:14:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2021-12-06 17:14:31,862 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2021-12-06 17:14:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 17:14:31,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 17:14:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2021-12-06 17:14:31,862 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2021-12-06 17:14:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2021-12-06 17:14:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2021-12-06 17:14:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2021-12-06 17:14:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2021-12-06 17:14:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2021-12-06 17:14:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2021-12-06 17:14:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 17:14:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 17:14:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2021-12-06 17:14:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2021-12-06 17:14:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2021-12-06 17:14:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2021-12-06 17:14:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2021-12-06 17:14:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2021-12-06 17:14:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2021-12-06 17:14:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2021-12-06 17:14:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2021-12-06 17:14:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2021-12-06 17:14:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2021-12-06 17:14:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2021-12-06 17:14:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-06 17:14:31,865 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-06 17:14:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 17:14:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 17:14:31,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 17:14:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2021-12-06 17:14:31,865 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2021-12-06 17:14:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2021-12-06 17:14:31,865 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2021-12-06 17:14:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-06 17:14:31,865 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-06 17:14:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-12-06 17:14:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2021-12-06 17:14:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_add [2021-12-06 17:14:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_add [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2021-12-06 17:14:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2021-12-06 17:14:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2021-12-06 17:14:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2021-12-06 17:14:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2021-12-06 17:14:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2021-12-06 17:14:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2021-12-06 17:14:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-06 17:14:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 17:14:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 17:14:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2021-12-06 17:14:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2021-12-06 17:14:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2021-12-06 17:14:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-06 17:14:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-06 17:14:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2021-12-06 17:14:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2021-12-06 17:14:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-06 17:14:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-06 17:14:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2021-12-06 17:14:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2021-12-06 17:14:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 17:14:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 17:14:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:14:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2021-12-06 17:14:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2021-12-06 17:14:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2021-12-06 17:14:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2021-12-06 17:14:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-12-06 17:14:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-12-06 17:14:32,571 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:14:32,574 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:14:35,869 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 17:15:10,995 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:11,021 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:11,021 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:15:11,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:11 BoogieIcfgContainer [2021-12-06 17:15:11,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:11,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:11,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:11,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:11,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:14:24" (1/3) ... [2021-12-06 17:15:11,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fbde75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:11, skipping insertion in model container [2021-12-06 17:15:11,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:30" (2/3) ... [2021-12-06 17:15:11,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fbde75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:11, skipping insertion in model container [2021-12-06 17:15:11,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:11" (3/3) ... [2021-12-06 17:15:11,031 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-12-06 17:15:11,035 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:11,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:15:11,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:11,086 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 [2021-12-06 17:15:11,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:15:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 4733 states, 3348 states have (on average 1.4369772998805257) internal successors, (4811), 3534 states have internal predecessors, (4811), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) [2021-12-06 17:15:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 17:15:11,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:11,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:11,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:11,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2096007740, now seen corresponding path program 1 times [2021-12-06 17:15:11,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:11,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640555905] [2021-12-06 17:15:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:11,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:15:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:12,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:15:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:15:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:12,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:12,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640555905] [2021-12-06 17:15:12,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640555905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:12,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:12,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:15:12,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061625920] [2021-12-06 17:15:12,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:12,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:12,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:12,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:12,143 INFO L87 Difference]: Start difference. First operand has 4733 states, 3348 states have (on average 1.4369772998805257) internal successors, (4811), 3534 states have internal predecessors, (4811), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:15:26,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:36,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:38,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:41,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:43,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:46,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:49,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:51,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:53,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:56,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:15:58,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:00,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:02,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:05,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:07,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:09,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:10,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:14,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:16,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:19,296 INFO L93 Difference]: Finished difference Result 9641 states and 14896 transitions. [2021-12-06 17:16:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:16:19,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2021-12-06 17:16:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:19,342 INFO L225 Difference]: With dead ends: 9641 [2021-12-06 17:16:19,342 INFO L226 Difference]: Without dead ends: 4887 [2021-12-06 17:16:19,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:16:19,368 INFO L933 BasicCegarLoop]: 6584 mSDtfsCounter, 3025 mSDsluCounter, 8394 mSDsCounter, 0 mSdLazyCounter, 5085 mSolverCounterSat, 3178 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 14978 SdHoareTripleChecker+Invalid, 8276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3178 IncrementalHoareTripleChecker+Valid, 5085 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:19,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3047 Valid, 14978 Invalid, 8276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3178 Valid, 5085 Invalid, 13 Unknown, 0 Unchecked, 66.7s Time] [2021-12-06 17:16:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4887 states. [2021-12-06 17:16:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4887 to 4707. [2021-12-06 17:16:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4707 states, 3343 states have (on average 1.430750822614418) internal successors, (4783), 3508 states have internal predecessors, (4783), 1171 states have call successors, (1171), 193 states have call predecessors, (1171), 192 states have return successors, (1162), 1101 states have call predecessors, (1162), 1162 states have call successors, (1162) [2021-12-06 17:16:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 7116 transitions. [2021-12-06 17:16:19,649 INFO L78 Accepts]: Start accepts. Automaton has 4707 states and 7116 transitions. Word has length 47 [2021-12-06 17:16:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:19,649 INFO L470 AbstractCegarLoop]: Abstraction has 4707 states and 7116 transitions. [2021-12-06 17:16:19,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:16:19,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4707 states and 7116 transitions. [2021-12-06 17:16:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 17:16:19,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:19,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:19,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:16:19,653 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:19,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:19,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1804592770, now seen corresponding path program 1 times [2021-12-06 17:16:19,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:19,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220151139] [2021-12-06 17:16:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:19,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:20,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:16:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:16:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:20,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:20,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:20,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220151139] [2021-12-06 17:16:20,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220151139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:20,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:20,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:16:20,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612918754] [2021-12-06 17:16:20,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:20,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:16:20,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:16:20,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:16:20,296 INFO L87 Difference]: Start difference. First operand 4707 states and 7116 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 17:16:38,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:39,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:41,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:52,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:54,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:16:56,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:00,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:02,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:04,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:08,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:10,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:12,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:14,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:16,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:19,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:21,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:23,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:25,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:26,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:28,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:30,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:37,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:39,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:41,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:17:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:17:43,359 INFO L93 Difference]: Finished difference Result 14367 states and 21961 transitions. [2021-12-06 17:17:43,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:17:43,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-12-06 17:17:43,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:17:43,412 INFO L225 Difference]: With dead ends: 14367 [2021-12-06 17:17:43,412 INFO L226 Difference]: Without dead ends: 9667 [2021-12-06 17:17:43,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:17:43,427 INFO L933 BasicCegarLoop]: 7367 mSDtfsCounter, 11795 mSDsluCounter, 14380 mSDsCounter, 0 mSdLazyCounter, 9262 mSolverCounterSat, 7136 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12385 SdHoareTripleChecker+Valid, 21747 SdHoareTripleChecker+Invalid, 16415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7136 IncrementalHoareTripleChecker+Valid, 9262 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:17:43,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12385 Valid, 21747 Invalid, 16415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7136 Valid, 9262 Invalid, 17 Unknown, 0 Unchecked, 82.4s Time] [2021-12-06 17:17:43,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2021-12-06 17:17:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9283. [2021-12-06 17:17:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9283 states, 6604 states have (on average 1.433373712901272) internal successors, (9466), 6927 states have internal predecessors, (9466), 2298 states have call successors, (2298), 381 states have call predecessors, (2298), 380 states have return successors, (2289), 2165 states have call predecessors, (2289), 2289 states have call successors, (2289) [2021-12-06 17:17:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9283 states to 9283 states and 14053 transitions. [2021-12-06 17:17:43,807 INFO L78 Accepts]: Start accepts. Automaton has 9283 states and 14053 transitions. Word has length 47 [2021-12-06 17:17:43,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:17:43,808 INFO L470 AbstractCegarLoop]: Abstraction has 9283 states and 14053 transitions. [2021-12-06 17:17:43,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 17:17:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 9283 states and 14053 transitions. [2021-12-06 17:17:43,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 17:17:43,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:17:43,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:17:43,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:17:43,814 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:17:43,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:17:43,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1566654533, now seen corresponding path program 1 times [2021-12-06 17:17:43,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:17:43,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594471010] [2021-12-06 17:17:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:17:43,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:17:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:17:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:17:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:17:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:44,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:17:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:44,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:17:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:17:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:17:44,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:17:44,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594471010] [2021-12-06 17:17:44,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594471010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:17:44,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:17:44,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:17:44,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831283424] [2021-12-06 17:17:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:17:44,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:17:44,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:17:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:17:44,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:17:44,393 INFO L87 Difference]: Start difference. First operand 9283 states and 14053 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 17:18:03,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:06,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:08,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:11,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:13,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:17,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:19,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:20,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:24,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:26,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:27,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:28,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:32,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:18:33,950 INFO L93 Difference]: Finished difference Result 26163 states and 39999 transitions. [2021-12-06 17:18:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:18:33,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2021-12-06 17:18:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:18:34,029 INFO L225 Difference]: With dead ends: 26163 [2021-12-06 17:18:34,030 INFO L226 Difference]: Without dead ends: 16887 [2021-12-06 17:18:34,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:18:34,061 INFO L933 BasicCegarLoop]: 8876 mSDtfsCounter, 11020 mSDsluCounter, 9063 mSDsCounter, 0 mSdLazyCounter, 5130 mSolverCounterSat, 7842 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11497 SdHoareTripleChecker+Valid, 17939 SdHoareTripleChecker+Invalid, 12979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7842 IncrementalHoareTripleChecker+Valid, 5130 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:18:34,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11497 Valid, 17939 Invalid, 12979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7842 Valid, 5130 Invalid, 7 Unknown, 0 Unchecked, 49.0s Time] [2021-12-06 17:18:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2021-12-06 17:18:34,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 16370. [2021-12-06 17:18:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16370 states, 11611 states have (on average 1.4375161484798897) internal successors, (16691), 12212 states have internal predecessors, (16691), 4085 states have call successors, (4085), 674 states have call predecessors, (4085), 673 states have return successors, (4076), 3842 states have call predecessors, (4076), 4076 states have call successors, (4076) [2021-12-06 17:18:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16370 states to 16370 states and 24852 transitions. [2021-12-06 17:18:34,700 INFO L78 Accepts]: Start accepts. Automaton has 16370 states and 24852 transitions. Word has length 58 [2021-12-06 17:18:34,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:18:34,701 INFO L470 AbstractCegarLoop]: Abstraction has 16370 states and 24852 transitions. [2021-12-06 17:18:34,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 17:18:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 16370 states and 24852 transitions. [2021-12-06 17:18:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-06 17:18:34,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:18:34,704 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 17:18:34,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:18:34,705 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:18:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:18:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2139146841, now seen corresponding path program 1 times [2021-12-06 17:18:34,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:18:34,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032810574] [2021-12-06 17:18:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:18:34,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:18:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:18:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:18:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:18:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:18:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:18:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 17:18:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 17:18:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:18:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:18:35,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:18:35,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032810574] [2021-12-06 17:18:35,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032810574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:18:35,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:18:35,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:18:35,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836906921] [2021-12-06 17:18:35,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:18:35,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:18:35,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:18:35,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:18:35,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:18:35,212 INFO L87 Difference]: Start difference. First operand 16370 states and 24852 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:18:43,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:50,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:54,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:57,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:18:59,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:01,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:03,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:05,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:12,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:19:15,465 INFO L93 Difference]: Finished difference Result 49451 states and 75756 transitions. [2021-12-06 17:19:15,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:19:15,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2021-12-06 17:19:15,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:19:15,571 INFO L225 Difference]: With dead ends: 49451 [2021-12-06 17:19:15,572 INFO L226 Difference]: Without dead ends: 33088 [2021-12-06 17:19:15,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:19:15,612 INFO L933 BasicCegarLoop]: 7323 mSDtfsCounter, 14870 mSDsluCounter, 8475 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 10227 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15470 SdHoareTripleChecker+Valid, 15798 SdHoareTripleChecker+Invalid, 15225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10227 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:19:15,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15470 Valid, 15798 Invalid, 15225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10227 Valid, 4989 Invalid, 9 Unknown, 0 Unchecked, 39.3s Time] [2021-12-06 17:19:15,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33088 states. [2021-12-06 17:19:16,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33088 to 32100. [2021-12-06 17:19:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32100 states, 22783 states have (on average 1.4392310055743318) internal successors, (32790), 23972 states have internal predecessors, (32790), 7988 states have call successors, (7988), 1329 states have call predecessors, (7988), 1328 states have return successors, (7979), 7515 states have call predecessors, (7979), 7979 states have call successors, (7979) [2021-12-06 17:19:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32100 states to 32100 states and 48757 transitions. [2021-12-06 17:19:16,861 INFO L78 Accepts]: Start accepts. Automaton has 32100 states and 48757 transitions. Word has length 61 [2021-12-06 17:19:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:19:16,862 INFO L470 AbstractCegarLoop]: Abstraction has 32100 states and 48757 transitions. [2021-12-06 17:19:16,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:19:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 32100 states and 48757 transitions. [2021-12-06 17:19:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 17:19:16,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:19:16,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:19:16,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:19:16,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:19:16,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:19:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1775485610, now seen corresponding path program 1 times [2021-12-06 17:19:16,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:19:16,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62303763] [2021-12-06 17:19:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:19:16,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:19:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:19:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:19:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:19:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:19:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:19:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:19:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:19:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:19:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:19:17,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:19:17,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62303763] [2021-12-06 17:19:17,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62303763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:19:17,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:19:17,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 17:19:17,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860681626] [2021-12-06 17:19:17,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:19:17,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:19:17,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:19:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:19:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:19:17,403 INFO L87 Difference]: Start difference. First operand 32100 states and 48757 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:19:28,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:40,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:42,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:44,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:49,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:51,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:53,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:55,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:57,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:19:58,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:01,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:07,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:20:08,315 INFO L93 Difference]: Finished difference Result 66273 states and 101503 transitions. [2021-12-06 17:20:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:20:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-12-06 17:20:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:20:08,419 INFO L225 Difference]: With dead ends: 66273 [2021-12-06 17:20:08,419 INFO L226 Difference]: Without dead ends: 34180 [2021-12-06 17:20:08,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:20:08,524 INFO L933 BasicCegarLoop]: 7988 mSDtfsCounter, 6671 mSDsluCounter, 22287 mSDsCounter, 0 mSdLazyCounter, 7824 mSolverCounterSat, 4592 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7529 SdHoareTripleChecker+Valid, 30275 SdHoareTripleChecker+Invalid, 12423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4592 IncrementalHoareTripleChecker+Valid, 7824 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:20:08,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7529 Valid, 30275 Invalid, 12423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4592 Valid, 7824 Invalid, 7 Unknown, 0 Unchecked, 49.9s Time] [2021-12-06 17:20:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34180 states. [2021-12-06 17:20:09,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34180 to 32100. [2021-12-06 17:20:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32100 states, 22783 states have (on average 1.4390554360707546) internal successors, (32786), 23972 states have internal predecessors, (32786), 7988 states have call successors, (7988), 1329 states have call predecessors, (7988), 1328 states have return successors, (7979), 7515 states have call predecessors, (7979), 7979 states have call successors, (7979) [2021-12-06 17:20:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32100 states to 32100 states and 48753 transitions. [2021-12-06 17:20:09,570 INFO L78 Accepts]: Start accepts. Automaton has 32100 states and 48753 transitions. Word has length 66 [2021-12-06 17:20:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:20:09,571 INFO L470 AbstractCegarLoop]: Abstraction has 32100 states and 48753 transitions. [2021-12-06 17:20:09,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:20:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 32100 states and 48753 transitions. [2021-12-06 17:20:09,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 17:20:09,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:20:09,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:20:09,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:20:09,573 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:20:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:20:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2096779860, now seen corresponding path program 1 times [2021-12-06 17:20:09,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:20:09,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099898134] [2021-12-06 17:20:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:20:09,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:20:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:20:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:20:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:20:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:20:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:20:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:20:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:20:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:20:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:20:10,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:20:10,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099898134] [2021-12-06 17:20:10,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099898134] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:20:10,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:20:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 17:20:10,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217877379] [2021-12-06 17:20:10,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:20:10,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:20:10,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:20:10,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:20:10,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:20:10,314 INFO L87 Difference]: Start difference. First operand 32100 states and 48753 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-06 17:20:16,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:31,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:32,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:35,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:37,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:39,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:40,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:43,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:20:58,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:03,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:05,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:08,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:09,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:11,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:13,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:16,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:19,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:21,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:23,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:25,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:26,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:29,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:32,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:43,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:45,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:21:46,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:21:46,680 INFO L93 Difference]: Finished difference Result 76631 states and 118926 transitions. [2021-12-06 17:21:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:21:46,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2021-12-06 17:21:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:21:46,806 INFO L225 Difference]: With dead ends: 76631 [2021-12-06 17:21:46,806 INFO L226 Difference]: Without dead ends: 44538 [2021-12-06 17:21:46,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:21:46,877 INFO L933 BasicCegarLoop]: 8930 mSDtfsCounter, 5101 mSDsluCounter, 34192 mSDsCounter, 0 mSdLazyCounter, 12366 mSolverCounterSat, 3044 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5950 SdHoareTripleChecker+Valid, 43122 SdHoareTripleChecker+Invalid, 15425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3044 IncrementalHoareTripleChecker+Valid, 12366 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:21:46,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5950 Valid, 43122 Invalid, 15425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3044 Valid, 12366 Invalid, 15 Unknown, 0 Unchecked, 95.2s Time] [2021-12-06 17:21:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44538 states. [2021-12-06 17:21:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44538 to 32116. [2021-12-06 17:21:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32116 states, 22795 states have (on average 1.4388243035753454) internal successors, (32798), 23984 states have internal predecessors, (32798), 7988 states have call successors, (7988), 1329 states have call predecessors, (7988), 1332 states have return successors, (7991), 7519 states have call predecessors, (7991), 7979 states have call successors, (7991) [2021-12-06 17:21:48,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32116 states to 32116 states and 48777 transitions. [2021-12-06 17:21:48,228 INFO L78 Accepts]: Start accepts. Automaton has 32116 states and 48777 transitions. Word has length 66 [2021-12-06 17:21:48,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:21:48,229 INFO L470 AbstractCegarLoop]: Abstraction has 32116 states and 48777 transitions. [2021-12-06 17:21:48,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-06 17:21:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 32116 states and 48777 transitions. [2021-12-06 17:21:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 17:21:48,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:21:48,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:21:48,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:21:48,231 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:21:48,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:21:48,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1085519683, now seen corresponding path program 1 times [2021-12-06 17:21:48,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:21:48,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161935430] [2021-12-06 17:21:48,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:21:48,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:21:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:21:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:21:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:21:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:21:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:21:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:21:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:21:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:21:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:21:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:21:48,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:21:48,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161935430] [2021-12-06 17:21:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161935430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:21:48,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:21:48,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:21:48,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177638339] [2021-12-06 17:21:48,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:21:48,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:21:48,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:21:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:21:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:21:48,801 INFO L87 Difference]: Start difference. First operand 32116 states and 48777 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:22:02,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:04,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:06,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:08,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:19,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:21,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:25,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:27,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:31,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:33,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:35,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:36,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:38,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:42,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:44,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:45,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:46,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:50,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:52,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:53,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:56,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:22:58,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:04,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:06,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:08,566 INFO L93 Difference]: Finished difference Result 33502 states and 51488 transitions. [2021-12-06 17:23:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:23:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2021-12-06 17:23:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:08,669 INFO L225 Difference]: With dead ends: 33502 [2021-12-06 17:23:08,670 INFO L226 Difference]: Without dead ends: 33499 [2021-12-06 17:23:08,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:23:08,687 INFO L933 BasicCegarLoop]: 6612 mSDtfsCounter, 7792 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 5968 mSolverCounterSat, 2678 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8428 SdHoareTripleChecker+Valid, 15116 SdHoareTripleChecker+Invalid, 8660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2678 IncrementalHoareTripleChecker+Valid, 5968 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:08,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8428 Valid, 15116 Invalid, 8660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2678 Valid, 5968 Invalid, 14 Unknown, 0 Unchecked, 79.0s Time] [2021-12-06 17:23:08,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33499 states. [2021-12-06 17:23:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33499 to 32515. [2021-12-06 17:23:09,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32515 states, 23059 states have (on average 1.4372262457175073) internal successors, (33141), 24254 states have internal predecessors, (33141), 8099 states have call successors, (8099), 1353 states have call predecessors, (8099), 1356 states have return successors, (8103), 7626 states have call predecessors, (8103), 8091 states have call successors, (8103) [2021-12-06 17:23:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32515 states to 32515 states and 49343 transitions. [2021-12-06 17:23:09,832 INFO L78 Accepts]: Start accepts. Automaton has 32515 states and 49343 transitions. Word has length 68 [2021-12-06 17:23:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:09,832 INFO L470 AbstractCegarLoop]: Abstraction has 32515 states and 49343 transitions. [2021-12-06 17:23:09,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:23:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 32515 states and 49343 transitions. [2021-12-06 17:23:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:23:09,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:09,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:09,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:23:09,834 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:09,834 INFO L85 PathProgramCache]: Analyzing trace with hash 706690790, now seen corresponding path program 1 times [2021-12-06 17:23:09,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:09,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39505305] [2021-12-06 17:23:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:09,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:23:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:23:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:23:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:23:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:23:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:23:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:23:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:23:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:23:10,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:10,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39505305] [2021-12-06 17:23:10,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39505305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:10,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:10,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:23:10,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475117008] [2021-12-06 17:23:10,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:10,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:23:10,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:10,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:23:10,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:23:10,283 INFO L87 Difference]: Start difference. First operand 32515 states and 49343 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:23:21,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:23,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:32,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:35,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:38,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:40,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:43,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:45,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:48,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:50,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:52,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:54,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:55,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:57,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:59,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:04,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:05,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:05,699 INFO L93 Difference]: Finished difference Result 33501 states and 51486 transitions. [2021-12-06 17:24:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:24:05,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2021-12-06 17:24:05,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:05,784 INFO L225 Difference]: With dead ends: 33501 [2021-12-06 17:24:05,784 INFO L226 Difference]: Without dead ends: 33498 [2021-12-06 17:24:05,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:24:05,801 INFO L933 BasicCegarLoop]: 6605 mSDtfsCounter, 7788 mSDsluCounter, 5914 mSDsCounter, 0 mSdLazyCounter, 4282 mSolverCounterSat, 2678 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8432 SdHoareTripleChecker+Valid, 12519 SdHoareTripleChecker+Invalid, 6971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2678 IncrementalHoareTripleChecker+Valid, 4282 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:05,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8432 Valid, 12519 Invalid, 6971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2678 Valid, 4282 Invalid, 11 Unknown, 0 Unchecked, 54.6s Time] [2021-12-06 17:24:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33498 states. [2021-12-06 17:24:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33498 to 32514. [2021-12-06 17:24:06,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32514 states, 23059 states have (on average 1.437182878702459) internal successors, (33140), 24253 states have internal predecessors, (33140), 8098 states have call successors, (8098), 1353 states have call predecessors, (8098), 1356 states have return successors, (8103), 7626 states have call predecessors, (8103), 8091 states have call successors, (8103) [2021-12-06 17:24:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32514 states to 32514 states and 49341 transitions. [2021-12-06 17:24:07,051 INFO L78 Accepts]: Start accepts. Automaton has 32514 states and 49341 transitions. Word has length 69 [2021-12-06 17:24:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:07,052 INFO L470 AbstractCegarLoop]: Abstraction has 32514 states and 49341 transitions. [2021-12-06 17:24:07,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:24:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 32514 states and 49341 transitions. [2021-12-06 17:24:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 17:24:07,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:07,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:07,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:24:07,054 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:07,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash 430645472, now seen corresponding path program 1 times [2021-12-06 17:24:07,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:07,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409990162] [2021-12-06 17:24:07,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:07,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:24:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:24:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:24:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:24:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:24:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:24:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:24:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:24:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:24:07,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:07,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409990162] [2021-12-06 17:24:07,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409990162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:07,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:07,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:24:07,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431383140] [2021-12-06 17:24:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:07,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:24:07,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:07,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:24:07,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:24:07,537 INFO L87 Difference]: Start difference. First operand 32514 states and 49341 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:24:14,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:23,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:25,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:27,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:29,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:31,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:33,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:35,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:37,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:39,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:41,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:43,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:48,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:49,801 INFO L93 Difference]: Finished difference Result 33536 states and 51522 transitions. [2021-12-06 17:24:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:24:49,802 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2021-12-06 17:24:49,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:49,881 INFO L225 Difference]: With dead ends: 33536 [2021-12-06 17:24:49,882 INFO L226 Difference]: Without dead ends: 33533 [2021-12-06 17:24:49,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:24:49,891 INFO L933 BasicCegarLoop]: 6548 mSDtfsCounter, 10937 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 6024 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11551 SdHoareTripleChecker+Valid, 9942 SdHoareTripleChecker+Invalid, 8565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6024 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:49,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11551 Valid, 9942 Invalid, 8565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6024 Valid, 2531 Invalid, 10 Unknown, 0 Unchecked, 41.3s Time] [2021-12-06 17:24:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33533 states. [2021-12-06 17:24:50,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33533 to 32549. [2021-12-06 17:24:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32549 states, 23077 states have (on average 1.4367985440048534) internal successors, (33157), 24270 states have internal predecessors, (33157), 8107 states have call successors, (8107), 1361 states have call predecessors, (8107), 1364 states have return successors, (8113), 7636 states have call predecessors, (8113), 8101 states have call successors, (8113) [2021-12-06 17:24:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32549 states to 32549 states and 49377 transitions. [2021-12-06 17:24:51,067 INFO L78 Accepts]: Start accepts. Automaton has 32549 states and 49377 transitions. Word has length 70 [2021-12-06 17:24:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:51,068 INFO L470 AbstractCegarLoop]: Abstraction has 32549 states and 49377 transitions. [2021-12-06 17:24:51,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:24:51,068 INFO L276 IsEmpty]: Start isEmpty. Operand 32549 states and 49377 transitions. [2021-12-06 17:24:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-06 17:24:51,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:51,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:51,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 17:24:51,070 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:51,070 INFO L85 PathProgramCache]: Analyzing trace with hash 463180073, now seen corresponding path program 1 times [2021-12-06 17:24:51,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:51,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746866957] [2021-12-06 17:24:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:51,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:24:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:24:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:24:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:24:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:24:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:24:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:24:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:24:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:24:51,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:51,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746866957] [2021-12-06 17:24:51,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746866957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:51,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:51,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:24:51,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368114661] [2021-12-06 17:24:51,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:51,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:24:51,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:24:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:24:51,498 INFO L87 Difference]: Start difference. First operand 32549 states and 49377 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:24:59,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:00,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:07,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:10,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:14,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:16,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:18,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:20,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:22,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:24,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:25,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:27,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:33,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:34,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:25:34,113 INFO L93 Difference]: Finished difference Result 33535 states and 51520 transitions. [2021-12-06 17:25:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:25:34,113 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), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2021-12-06 17:25:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:25:34,212 INFO L225 Difference]: With dead ends: 33535 [2021-12-06 17:25:34,213 INFO L226 Difference]: Without dead ends: 33532 [2021-12-06 17:25:34,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:25:34,224 INFO L933 BasicCegarLoop]: 6623 mSDtfsCounter, 12558 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 7697 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13189 SdHoareTripleChecker+Valid, 9962 SdHoareTripleChecker+Invalid, 10166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7697 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:25:34,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13189 Valid, 9962 Invalid, 10166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7697 Valid, 2462 Invalid, 7 Unknown, 0 Unchecked, 41.7s Time] [2021-12-06 17:25:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33532 states. [2021-12-06 17:25:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33532 to 32548. [2021-12-06 17:25:35,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32548 states, 23077 states have (on average 1.436755210815964) internal successors, (33156), 24269 states have internal predecessors, (33156), 8106 states have call successors, (8106), 1361 states have call predecessors, (8106), 1364 states have return successors, (8113), 7636 states have call predecessors, (8113), 8101 states have call successors, (8113) [2021-12-06 17:25:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32548 states to 32548 states and 49375 transitions. [2021-12-06 17:25:35,546 INFO L78 Accepts]: Start accepts. Automaton has 32548 states and 49375 transitions. Word has length 71 [2021-12-06 17:25:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:25:35,546 INFO L470 AbstractCegarLoop]: Abstraction has 32548 states and 49375 transitions. [2021-12-06 17:25:35,546 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), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:25:35,546 INFO L276 IsEmpty]: Start isEmpty. Operand 32548 states and 49375 transitions. [2021-12-06 17:25:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 17:25:35,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:25:35,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:25:35,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 17:25:35,548 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:25:35,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:25:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1471757571, now seen corresponding path program 1 times [2021-12-06 17:25:35,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:25:35,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002500287] [2021-12-06 17:25:35,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:25:35,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:25:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:25:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:25:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:25:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:25:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:25:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:25:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:25:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:25:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:25:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:25:35,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:25:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002500287] [2021-12-06 17:25:35,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002500287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:25:35,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:25:35,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:25:35,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178082442] [2021-12-06 17:25:35,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:25:35,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:25:35,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:25:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:25:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:25:35,983 INFO L87 Difference]: Start difference. First operand 32548 states and 49375 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:25:40,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:51,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:53,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:25:55,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:09,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:11,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:15,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:17,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:19,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:21,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:23,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:26,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:28,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:30,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:32,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:34,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:35,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:37,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:39,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:41,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:44,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:46,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:48,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:49,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:52,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:55,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:26:58,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:06,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:08,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:10,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:27:12,120 INFO L93 Difference]: Finished difference Result 33534 states and 51518 transitions. [2021-12-06 17:27:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:27:12,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2021-12-06 17:27:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:27:12,209 INFO L225 Difference]: With dead ends: 33534 [2021-12-06 17:27:12,209 INFO L226 Difference]: Without dead ends: 33531 [2021-12-06 17:27:12,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:27:12,222 INFO L933 BasicCegarLoop]: 6608 mSDtfsCounter, 10818 mSDsluCounter, 8747 mSDsCounter, 0 mSdLazyCounter, 5567 mSolverCounterSat, 5966 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11452 SdHoareTripleChecker+Valid, 15355 SdHoareTripleChecker+Invalid, 11557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5966 IncrementalHoareTripleChecker+Valid, 5567 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:27:12,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11452 Valid, 15355 Invalid, 11557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5966 Valid, 5567 Invalid, 24 Unknown, 0 Unchecked, 95.1s Time] [2021-12-06 17:27:12,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33531 states. [2021-12-06 17:27:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33531 to 32547. [2021-12-06 17:27:13,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32547 states, 23077 states have (on average 1.4367118776270746) internal successors, (33155), 24268 states have internal predecessors, (33155), 8105 states have call successors, (8105), 1361 states have call predecessors, (8105), 1364 states have return successors, (8113), 7636 states have call predecessors, (8113), 8101 states have call successors, (8113) [2021-12-06 17:27:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32547 states to 32547 states and 49373 transitions. [2021-12-06 17:27:13,634 INFO L78 Accepts]: Start accepts. Automaton has 32547 states and 49373 transitions. Word has length 72 [2021-12-06 17:27:13,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:27:13,635 INFO L470 AbstractCegarLoop]: Abstraction has 32547 states and 49373 transitions. [2021-12-06 17:27:13,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:27:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 32547 states and 49373 transitions. [2021-12-06 17:27:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-06 17:27:13,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:27:13,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:27:13,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 17:27:13,637 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:27:13,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:27:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1622073492, now seen corresponding path program 1 times [2021-12-06 17:27:13,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:27:13,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064883467] [2021-12-06 17:27:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:27:13,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:27:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:13,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:27:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:27:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:27:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:27:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:27:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:27:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:27:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:27:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:27:14,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:27:14,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064883467] [2021-12-06 17:27:14,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064883467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:27:14,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:27:14,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:27:14,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688910134] [2021-12-06 17:27:14,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:27:14,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:27:14,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:27:14,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:27:14,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:27:14,058 INFO L87 Difference]: Start difference. First operand 32547 states and 49373 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:27:23,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:27,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:31,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:34,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:36,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:37,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:39,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:41,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:44,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:47,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:49,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:50,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:54,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:27:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:27:55,838 INFO L93 Difference]: Finished difference Result 33533 states and 51516 transitions. [2021-12-06 17:27:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:27:55,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2021-12-06 17:27:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:27:55,923 INFO L225 Difference]: With dead ends: 33533 [2021-12-06 17:27:55,923 INFO L226 Difference]: Without dead ends: 33530 [2021-12-06 17:27:55,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:27:55,935 INFO L933 BasicCegarLoop]: 6608 mSDtfsCounter, 12577 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 7694 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13211 SdHoareTripleChecker+Valid, 9942 SdHoareTripleChecker+Invalid, 10161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7694 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:27:55,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13211 Valid, 9942 Invalid, 10161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7694 Valid, 2461 Invalid, 6 Unknown, 0 Unchecked, 40.8s Time] [2021-12-06 17:27:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33530 states. [2021-12-06 17:27:57,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33530 to 32546. [2021-12-06 17:27:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32546 states, 23077 states have (on average 1.4366685444381853) internal successors, (33154), 24267 states have internal predecessors, (33154), 8104 states have call successors, (8104), 1361 states have call predecessors, (8104), 1364 states have return successors, (8113), 7636 states have call predecessors, (8113), 8101 states have call successors, (8113) [2021-12-06 17:27:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32546 states to 32546 states and 49371 transitions. [2021-12-06 17:27:57,321 INFO L78 Accepts]: Start accepts. Automaton has 32546 states and 49371 transitions. Word has length 73 [2021-12-06 17:27:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:27:57,321 INFO L470 AbstractCegarLoop]: Abstraction has 32546 states and 49371 transitions. [2021-12-06 17:27:57,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:27:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 32546 states and 49371 transitions. [2021-12-06 17:27:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-06 17:27:57,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:27:57,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:27:57,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 17:27:57,324 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:27:57,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:27:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1253416230, now seen corresponding path program 1 times [2021-12-06 17:27:57,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:27:57,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635665525] [2021-12-06 17:27:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:27:57,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:27:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:27:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:27:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:27:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:27:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:27:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 17:27:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:27:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:27:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:27:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:27:57,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:27:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635665525] [2021-12-06 17:27:57,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635665525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:27:57,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:27:57,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:27:57,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593614379] [2021-12-06 17:27:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:27:57,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:27:57,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:27:57,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:27:57,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:27:57,821 INFO L87 Difference]: Start difference. First operand 32546 states and 49371 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)