./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/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_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/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_2546032f-8ee2-483d-b806-b4cd2930cd9a/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 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:36:14,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:36:14,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:36:14,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:36:14,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:36:14,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:36:14,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:36:14,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:36:14,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:36:14,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:36:14,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:36:14,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:36:14,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:36:14,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:36:14,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:36:14,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:36:14,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:36:14,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:36:14,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:36:14,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:36:14,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:36:14,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:36:14,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:36:14,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:36:14,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:36:14,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:36:14,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:36:14,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:36:14,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:36:14,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:36:14,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:36:14,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:36:14,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:36:14,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:36:14,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:36:14,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:36:14,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:36:14,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:36:14,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:36:14,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:36:14,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:36:14,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 17:36:14,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:36:14,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:36:14,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:36:14,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:36:14,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:36:14,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:36:14,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:36:14,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:36:14,369 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:36:14,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:36:14,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:36:14,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:36:14,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:36:14,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:36:14,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:36:14,371 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:36:14,372 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:36:14,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:36:14,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:36:14,372 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_2546032f-8ee2-483d-b806-b4cd2930cd9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2021-12-06 17:36:14,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:36:14,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:36:14,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:36:14,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:36:14,564 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:36:14,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-06 17:36:14,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/data/c7c967cf5/6c6f6af755174effba19c0a529f97537/FLAG1c2d2f4dd [2021-12-06 17:36:15,257 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:36:15,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-06 17:36:15,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/data/c7c967cf5/6c6f6af755174effba19c0a529f97537/FLAG1c2d2f4dd [2021-12-06 17:36:15,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/data/c7c967cf5/6c6f6af755174effba19c0a529f97537 [2021-12-06 17:36:15,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:36:15,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:36:15,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:36:15,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:36:15,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:36:15,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:15" (1/1) ... [2021-12-06 17:36:15,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a957fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:15, skipping insertion in model container [2021-12-06 17:36:15,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:15" (1/1) ... [2021-12-06 17:36:15,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:36:15,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:36:16,121 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-12-06 17:36:16,121 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-12-06 17:36:16,401 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_2546032f-8ee2-483d-b806-b4cd2930cd9a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-12-06 17:36:17,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:36:17,289 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:36:17,357 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-12-06 17:36:17,357 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-12-06 17:36:17,363 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_2546032f-8ee2-483d-b806-b4cd2930cd9a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-12-06 17:36:17,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:36:17,581 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:36:17,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17 WrapperNode [2021-12-06 17:36:17,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:36:17,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:36:17,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:36:17,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:36:17,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,770 INFO L137 Inliner]: procedures = 281, calls = 1587, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4353 [2021-12-06 17:36:17,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:36:17,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:36:17,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:36:17,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:36:17,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:36:17,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:36:17,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:36:17,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:36:17,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (1/1) ... [2021-12-06 17:36:17,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:36:17,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:36:17,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:36:17,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:36:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-12-06 17:36:17,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-12-06 17:36:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-06 17:36:17,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-06 17:36:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 17:36:17,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 17:36:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-12-06 17:36:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-12-06 17:36:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 17:36:17,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 17:36:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-06 17:36:17,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-06 17:36:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-06 17:36:17,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-06 17:36:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 17:36:17,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 17:36:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-06 17:36:17,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-06 17:36:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-12-06 17:36:17,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-12-06 17:36:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-06 17:36:17,992 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-06 17:36:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:36:17,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:36:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-06 17:36:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-06 17:36:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 17:36:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 17:36:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 17:36:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 17:36:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-06 17:36:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-06 17:36:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-12-06 17:36:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-12-06 17:36:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 17:36:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 17:36:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-06 17:36:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-06 17:36:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-06 17:36:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-06 17:36:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:36:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 17:36:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 17:36:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-06 17:36:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-06 17:36:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:36:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 17:36:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 17:36:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-06 17:36:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-06 17:36:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 17:36:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 17:36:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-06 17:36:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-06 17:36:17,996 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 17:36:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 17:36:17,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-06 17:36:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-06 17:36:17,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-06 17:36:17,996 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-12-06 17:36:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-12-06 17:36:17,996 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-12-06 17:36:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-12-06 17:36:17,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 17:36:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 17:36:17,997 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-12-06 17:36:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-12-06 17:36:17,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-12-06 17:36:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-12-06 17:36:17,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-06 17:36:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-06 17:36:17,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:36:17,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 17:36:17,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-06 17:36:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-06 17:36:17,998 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-06 17:36:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-06 17:36:17,998 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 17:36:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 17:36:17,998 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-12-06 17:36:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-12-06 17:36:17,999 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 17:36:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 17:36:17,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 17:36:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 17:36:17,999 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-12-06 17:36:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-12-06 17:36:17,999 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-06 17:36:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-06 17:36:17,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 17:36:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 17:36:18,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-06 17:36:18,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-06 17:36:18,000 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-12-06 17:36:18,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-12-06 17:36:18,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:36:18,000 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-12-06 17:36:18,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-12-06 17:36:18,000 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-06 17:36:18,000 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-06 17:36:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 17:36:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 17:36:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 17:36:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 17:36:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-06 17:36:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-06 17:36:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 17:36:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 17:36:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 17:36:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 17:36:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 17:36:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 17:36:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-06 17:36:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-06 17:36:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-06 17:36:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-06 17:36:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:36:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-06 17:36:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-06 17:36:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-12-06 17:36:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-12-06 17:36:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 17:36:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 17:36:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-12-06 17:36:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-12-06 17:36:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-12-06 17:36:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-12-06 17:36:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-06 17:36:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-12-06 17:36:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-06 17:36:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-06 17:36:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-06 17:36:18,004 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-06 17:36:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-06 17:36:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-06 17:36:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-06 17:36:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-12-06 17:36:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-12-06 17:36:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-06 17:36:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-06 17:36:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-12-06 17:36:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-12-06 17:36:18,005 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-06 17:36:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-06 17:36:18,006 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 17:36:18,006 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 17:36:18,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:36:18,006 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-06 17:36:18,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-06 17:36:18,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:36:18,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:36:18,480 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:36:18,482 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:36:18,719 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 17:36:20,407 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:36:20,421 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:36:20,422 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:36:20,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:20 BoogieIcfgContainer [2021-12-06 17:36:20,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:36:20,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:36:20,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:36:20,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:36:20,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:36:15" (1/3) ... [2021-12-06 17:36:20,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335f39eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:36:20, skipping insertion in model container [2021-12-06 17:36:20,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:17" (2/3) ... [2021-12-06 17:36:20,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335f39eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:36:20, skipping insertion in model container [2021-12-06 17:36:20,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:20" (3/3) ... [2021-12-06 17:36:20,431 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-06 17:36:20,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:36:20,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:36:20,477 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:36:20,482 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 17:36:20,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:36:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) [2021-12-06 17:36:20,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 17:36:20,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:20,547 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:20,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1357541251, now seen corresponding path program 1 times [2021-12-06 17:36:20,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:20,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219467186] [2021-12-06 17:36:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:20,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 17:36:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:36:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:36:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:36:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:21,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:21,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219467186] [2021-12-06 17:36:21,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219467186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:21,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:36:21,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:36:21,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21421066] [2021-12-06 17:36:21,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:21,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:36:21,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:21,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:36:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:36:21,122 INFO L87 Difference]: Start difference. First operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:25,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:25,916 INFO L93 Difference]: Finished difference Result 5294 states and 7735 transitions. [2021-12-06 17:36:25,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:36:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2021-12-06 17:36:25,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:25,956 INFO L225 Difference]: With dead ends: 5294 [2021-12-06 17:36:25,956 INFO L226 Difference]: Without dead ends: 3576 [2021-12-06 17:36:25,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:36:25,976 INFO L933 BasicCegarLoop]: 2472 mSDtfsCounter, 4378 mSDsluCounter, 6962 mSDsCounter, 0 mSdLazyCounter, 5084 mSolverCounterSat, 2894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4690 SdHoareTripleChecker+Valid, 9434 SdHoareTripleChecker+Invalid, 7978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2894 IncrementalHoareTripleChecker+Valid, 5084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:25,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4690 Valid, 9434 Invalid, 7978 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2894 Valid, 5084 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-06 17:36:25,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2021-12-06 17:36:26,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3307. [2021-12-06 17:36:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2300 states have (on average 1.3139130434782609) internal successors, (3022), 2340 states have internal predecessors, (3022), 853 states have call successors, (853), 154 states have call predecessors, (853), 153 states have return successors, (852), 840 states have call predecessors, (852), 852 states have call successors, (852) [2021-12-06 17:36:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4727 transitions. [2021-12-06 17:36:26,254 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4727 transitions. Word has length 92 [2021-12-06 17:36:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:26,255 INFO L470 AbstractCegarLoop]: Abstraction has 3307 states and 4727 transitions. [2021-12-06 17:36:26,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:26,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4727 transitions. [2021-12-06 17:36:26,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 17:36:26,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:26,269 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:26,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:36:26,269 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:26,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -454809615, now seen corresponding path program 1 times [2021-12-06 17:36:26,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:26,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907029497] [2021-12-06 17:36:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:26,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:36:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:36:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:36:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:36:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:26,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:26,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907029497] [2021-12-06 17:36:26,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907029497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:26,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:36:26,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:36:26,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611235832] [2021-12-06 17:36:26,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:26,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:36:26,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:26,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:36:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:36:26,525 INFO L87 Difference]: Start difference. First operand 3307 states and 4727 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:31,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:31,054 INFO L93 Difference]: Finished difference Result 10419 states and 14995 transitions. [2021-12-06 17:36:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:36:31,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-06 17:36:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:31,094 INFO L225 Difference]: With dead ends: 10419 [2021-12-06 17:36:31,095 INFO L226 Difference]: Without dead ends: 7129 [2021-12-06 17:36:31,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:36:31,110 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 4361 mSDsluCounter, 6784 mSDsCounter, 0 mSdLazyCounter, 5009 mSolverCounterSat, 2876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 9178 SdHoareTripleChecker+Invalid, 7885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 5009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:31,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 9178 Invalid, 7885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2876 Valid, 5009 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-06 17:36:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-12-06 17:36:31,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 6596. [2021-12-06 17:36:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 4590 states have (on average 1.3132897603485838) internal successors, (6028), 4669 states have internal predecessors, (6028), 1698 states have call successors, (1698), 308 states have call predecessors, (1698), 307 states have return successors, (1697), 1674 states have call predecessors, (1697), 1697 states have call successors, (1697) [2021-12-06 17:36:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 9423 transitions. [2021-12-06 17:36:31,408 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 9423 transitions. Word has length 93 [2021-12-06 17:36:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:31,408 INFO L470 AbstractCegarLoop]: Abstraction has 6596 states and 9423 transitions. [2021-12-06 17:36:31,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:31,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 9423 transitions. [2021-12-06 17:36:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 17:36:31,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:31,414 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:31,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:36:31,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 658135424, now seen corresponding path program 1 times [2021-12-06 17:36:31,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:31,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536673654] [2021-12-06 17:36:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:31,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 17:36:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 17:36:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 17:36:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 17:36:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:31,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:31,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536673654] [2021-12-06 17:36:31,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536673654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:31,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:36:31,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:36:31,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700690336] [2021-12-06 17:36:31,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:31,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:36:31,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:31,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:36:31,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:36:31,583 INFO L87 Difference]: Start difference. First operand 6596 states and 9423 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:35,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:35,546 INFO L93 Difference]: Finished difference Result 20821 states and 29933 transitions. [2021-12-06 17:36:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:36:35,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2021-12-06 17:36:35,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:35,619 INFO L225 Difference]: With dead ends: 20821 [2021-12-06 17:36:35,619 INFO L226 Difference]: Without dead ends: 14242 [2021-12-06 17:36:35,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:36:35,645 INFO L933 BasicCegarLoop]: 2373 mSDtfsCounter, 4364 mSDsluCounter, 6749 mSDsCounter, 0 mSdLazyCounter, 5005 mSolverCounterSat, 2898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 9122 SdHoareTripleChecker+Invalid, 7903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 5005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:35,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4673 Valid, 9122 Invalid, 7903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 5005 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 17:36:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2021-12-06 17:36:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 13179. [2021-12-06 17:36:36,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13179 states, 9175 states have (on average 1.3126975476839238) internal successors, (12044), 9331 states have internal predecessors, (12044), 3387 states have call successors, (3387), 617 states have call predecessors, (3387), 616 states have return successors, (3386), 3342 states have call predecessors, (3386), 3386 states have call successors, (3386) [2021-12-06 17:36:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13179 states to 13179 states and 18817 transitions. [2021-12-06 17:36:36,226 INFO L78 Accepts]: Start accepts. Automaton has 13179 states and 18817 transitions. Word has length 94 [2021-12-06 17:36:36,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:36,226 INFO L470 AbstractCegarLoop]: Abstraction has 13179 states and 18817 transitions. [2021-12-06 17:36:36,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13179 states and 18817 transitions. [2021-12-06 17:36:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 17:36:36,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:36,232 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:36,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:36:36,233 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:36,233 INFO L85 PathProgramCache]: Analyzing trace with hash -302238636, now seen corresponding path program 1 times [2021-12-06 17:36:36,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:36,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677714139] [2021-12-06 17:36:36,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:36,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:36:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:36:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:36:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:36:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:36,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:36,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677714139] [2021-12-06 17:36:36,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677714139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:36,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:36:36,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:36:36,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930431818] [2021-12-06 17:36:36,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:36,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:36:36,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:36,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:36:36,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:36:36,392 INFO L87 Difference]: Start difference. First operand 13179 states and 18817 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:40,691 INFO L93 Difference]: Finished difference Result 41620 states and 59781 transitions. [2021-12-06 17:36:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:36:40,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2021-12-06 17:36:40,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:40,812 INFO L225 Difference]: With dead ends: 41620 [2021-12-06 17:36:40,812 INFO L226 Difference]: Without dead ends: 28458 [2021-12-06 17:36:40,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:36:40,860 INFO L933 BasicCegarLoop]: 2363 mSDtfsCounter, 4372 mSDsluCounter, 6706 mSDsCounter, 0 mSdLazyCounter, 4994 mSolverCounterSat, 2904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 9069 SdHoareTripleChecker+Invalid, 7898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2904 IncrementalHoareTripleChecker+Valid, 4994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:40,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4682 Valid, 9069 Invalid, 7898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2904 Valid, 4994 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 17:36:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2021-12-06 17:36:41,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 26343. [2021-12-06 17:36:41,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26343 states, 18345 states have (on average 1.3120741346415916) internal successors, (24070), 18653 states have internal predecessors, (24070), 6762 states have call successors, (6762), 1236 states have call predecessors, (6762), 1235 states have return successors, (6761), 6677 states have call predecessors, (6761), 6761 states have call successors, (6761) [2021-12-06 17:36:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26343 states to 26343 states and 37593 transitions. [2021-12-06 17:36:41,778 INFO L78 Accepts]: Start accepts. Automaton has 26343 states and 37593 transitions. Word has length 95 [2021-12-06 17:36:41,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:41,779 INFO L470 AbstractCegarLoop]: Abstraction has 26343 states and 37593 transitions. [2021-12-06 17:36:41,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:36:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 26343 states and 37593 transitions. [2021-12-06 17:36:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 17:36:41,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:41,786 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:41,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:36:41,786 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:41,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:41,787 INFO L85 PathProgramCache]: Analyzing trace with hash -761982270, now seen corresponding path program 1 times [2021-12-06 17:36:41,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:41,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145638787] [2021-12-06 17:36:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:41,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:36:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:36:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:36:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:36:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:36:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 17:36:41,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:41,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145638787] [2021-12-06 17:36:41,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145638787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:41,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:36:41,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:36:41,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954803027] [2021-12-06 17:36:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:41,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:36:41,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:41,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:36:41,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:36:41,918 INFO L87 Difference]: Start difference. First operand 26343 states and 37593 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:36:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:45,757 INFO L93 Difference]: Finished difference Result 76739 states and 109734 transitions. [2021-12-06 17:36:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:36:45,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2021-12-06 17:36:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:45,923 INFO L225 Difference]: With dead ends: 76739 [2021-12-06 17:36:45,923 INFO L226 Difference]: Without dead ends: 50413 [2021-12-06 17:36:45,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:36:45,992 INFO L933 BasicCegarLoop]: 2302 mSDtfsCounter, 3791 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 2590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4025 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 5259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2590 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:45,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4025 Valid, 5352 Invalid, 5259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2590 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-06 17:36:46,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50413 states. [2021-12-06 17:36:47,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50413 to 46845. [2021-12-06 17:36:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46845 states, 32715 states have (on average 1.3081461103469356) internal successors, (42796), 33313 states have internal predecessors, (42796), 11823 states have call successors, (11823), 2323 states have call predecessors, (11823), 2306 states have return successors, (11822), 11622 states have call predecessors, (11822), 11822 states have call successors, (11822) [2021-12-06 17:36:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46845 states to 46845 states and 66441 transitions. [2021-12-06 17:36:47,662 INFO L78 Accepts]: Start accepts. Automaton has 46845 states and 66441 transitions. Word has length 106 [2021-12-06 17:36:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:47,662 INFO L470 AbstractCegarLoop]: Abstraction has 46845 states and 66441 transitions. [2021-12-06 17:36:47,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:36:47,663 INFO L276 IsEmpty]: Start isEmpty. Operand 46845 states and 66441 transitions. [2021-12-06 17:36:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-06 17:36:47,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:47,666 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:47,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:36:47,666 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:47,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:47,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1559019951, now seen corresponding path program 1 times [2021-12-06 17:36:47,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:47,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547646672] [2021-12-06 17:36:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:47,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 17:36:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:36:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:36:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:36:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:36:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 17:36:47,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:47,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547646672] [2021-12-06 17:36:47,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547646672] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:36:47,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055927113] [2021-12-06 17:36:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:47,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:36:47,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:36:47,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:36:47,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:36:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:48,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:36:48,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:36:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:48,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:36:48,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055927113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:48,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:36:48,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-06 17:36:48,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846887688] [2021-12-06 17:36:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:48,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:36:48,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:36:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:36:48,466 INFO L87 Difference]: Start difference. First operand 46845 states and 66441 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:36:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:50,122 INFO L93 Difference]: Finished difference Result 117365 states and 166419 transitions. [2021-12-06 17:36:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 17:36:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2021-12-06 17:36:50,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:50,398 INFO L225 Difference]: With dead ends: 117365 [2021-12-06 17:36:50,398 INFO L226 Difference]: Without dead ends: 70537 [2021-12-06 17:36:50,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:36:50,541 INFO L933 BasicCegarLoop]: 3048 mSDtfsCounter, 2399 mSDsluCounter, 14544 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 17592 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:50,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 17592 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:36:50,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70537 states. [2021-12-06 17:36:52,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70537 to 70242. [2021-12-06 17:36:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70242 states, 49070 states have (on average 1.3085592011412268) internal successors, (64211), 49986 states have internal predecessors, (64211), 17703 states have call successors, (17703), 3477 states have call predecessors, (17703), 3468 states have return successors, (17742), 17398 states have call predecessors, (17742), 17702 states have call successors, (17742) [2021-12-06 17:36:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70242 states to 70242 states and 99656 transitions. [2021-12-06 17:36:53,003 INFO L78 Accepts]: Start accepts. Automaton has 70242 states and 99656 transitions. Word has length 105 [2021-12-06 17:36:53,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:53,003 INFO L470 AbstractCegarLoop]: Abstraction has 70242 states and 99656 transitions. [2021-12-06 17:36:53,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:36:53,004 INFO L276 IsEmpty]: Start isEmpty. Operand 70242 states and 99656 transitions. [2021-12-06 17:36:53,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 17:36:53,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:53,007 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:53,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:36:53,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:36:53,209 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:36:53,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:53,209 INFO L85 PathProgramCache]: Analyzing trace with hash 121846562, now seen corresponding path program 1 times [2021-12-06 17:36:53,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:36:53,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953256804] [2021-12-06 17:36:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:53,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:36:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:36:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:36:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:36:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:36:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:36:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:36:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 17:36:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:36:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:36:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:36:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:36:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:53,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:36:53,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953256804] [2021-12-06 17:36:53,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953256804] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:36:53,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135733687] [2021-12-06 17:36:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:36:53,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:36:53,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:36:53,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:36:53,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:36:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:36:53,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:36:53,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:36:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:36:53,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:36:53,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135733687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:53,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:36:53,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-12-06 17:36:53,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934269780] [2021-12-06 17:36:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:53,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:36:53,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:36:53,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:36:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:36:53,962 INFO L87 Difference]: Start difference. First operand 70242 states and 99656 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:36:56,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:56,446 INFO L93 Difference]: Finished difference Result 164265 states and 232941 transitions. [2021-12-06 17:36:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 17:36:56,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2021-12-06 17:36:56,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:56,803 INFO L225 Difference]: With dead ends: 164265 [2021-12-06 17:36:56,803 INFO L226 Difference]: Without dead ends: 94040 [2021-12-06 17:36:57,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:36:57,040 INFO L933 BasicCegarLoop]: 3136 mSDtfsCounter, 2399 mSDsluCounter, 14884 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 18020 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:57,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 18020 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:36:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94040 states. [2021-12-06 17:37:00,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94040 to 93703. [2021-12-06 17:37:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93703 states, 65465 states have (on average 1.3085771022683876) internal successors, (85666), 66731 states have internal predecessors, (85666), 23583 states have call successors, (23583), 4631 states have call predecessors, (23583), 4654 states have return successors, (23686), 23166 states have call predecessors, (23686), 23582 states have call successors, (23686) [2021-12-06 17:37:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93703 states to 93703 states and 132935 transitions. [2021-12-06 17:37:00,463 INFO L78 Accepts]: Start accepts. Automaton has 93703 states and 132935 transitions. Word has length 106 [2021-12-06 17:37:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:37:00,464 INFO L470 AbstractCegarLoop]: Abstraction has 93703 states and 132935 transitions. [2021-12-06 17:37:00,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:37:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 93703 states and 132935 transitions. [2021-12-06 17:37:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 17:37:00,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:37:00,468 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:37:00,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:37:00,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 17:37:00,670 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:37:00,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:37:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1878663608, now seen corresponding path program 1 times [2021-12-06 17:37:00,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:37:00,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958496979] [2021-12-06 17:37:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:37:00,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:37:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:37:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:37:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:37:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:37:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:37:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:37:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 17:37:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 17:37:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:37:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:37:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 17:37:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:37:00,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:37:00,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958496979] [2021-12-06 17:37:00,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958496979] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:37:00,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059822921] [2021-12-06 17:37:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:37:00,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:37:00,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:37:00,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:37:00,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 17:37:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:01,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:37:01,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:37:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:37:01,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:37:01,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059822921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:37:01,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:37:01,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-12-06 17:37:01,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000147498] [2021-12-06 17:37:01,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:37:01,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:37:01,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:37:01,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:37:01,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:37:01,387 INFO L87 Difference]: Start difference. First operand 93703 states and 132935 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:37:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:37:04,656 INFO L93 Difference]: Finished difference Result 211165 states and 299463 transitions. [2021-12-06 17:37:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 17:37:04,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2021-12-06 17:37:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:37:05,091 INFO L225 Difference]: With dead ends: 211165 [2021-12-06 17:37:05,091 INFO L226 Difference]: Without dead ends: 117479 [2021-12-06 17:37:05,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:37:05,411 INFO L933 BasicCegarLoop]: 3138 mSDtfsCounter, 2399 mSDsluCounter, 14892 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 18030 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:37:05,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 18030 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:37:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117479 states. [2021-12-06 17:37:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117479 to 93747. [2021-12-06 17:37:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93747 states, 65497 states have (on average 1.3084263401377163) internal successors, (85698), 66767 states have internal predecessors, (85698), 23583 states have call successors, (23583), 4631 states have call predecessors, (23583), 4666 states have return successors, (23704), 23174 states have call predecessors, (23704), 23582 states have call successors, (23704) [2021-12-06 17:37:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93747 states to 93747 states and 132985 transitions. [2021-12-06 17:37:08,912 INFO L78 Accepts]: Start accepts. Automaton has 93747 states and 132985 transitions. Word has length 107 [2021-12-06 17:37:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:37:08,913 INFO L470 AbstractCegarLoop]: Abstraction has 93747 states and 132985 transitions. [2021-12-06 17:37:08,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:37:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 93747 states and 132985 transitions. [2021-12-06 17:37:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 17:37:08,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:37:08,918 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:37:08,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 17:37:09,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:37:09,119 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:37:09,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:37:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1694979881, now seen corresponding path program 1 times [2021-12-06 17:37:09,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:37:09,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150460386] [2021-12-06 17:37:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:37:09,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:37:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:37:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:37:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:37:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:37:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:37:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:37:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:37:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:37:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:37:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:37:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:37:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:37:09,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:37:09,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150460386] [2021-12-06 17:37:09,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150460386] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:37:09,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161888461] [2021-12-06 17:37:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:37:09,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:37:09,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:37:09,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:37:09,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 17:37:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:09,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1953 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:37:09,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:37:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-06 17:37:09,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:37:09,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161888461] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:37:09,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:37:09,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-12-06 17:37:09,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818420176] [2021-12-06 17:37:09,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:37:09,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:37:09,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:37:09,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:37:09,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:37:09,935 INFO L87 Difference]: Start difference. First operand 93747 states and 132985 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:37:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:37:12,557 INFO L93 Difference]: Finished difference Result 211225 states and 299529 transitions. [2021-12-06 17:37:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 17:37:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2021-12-06 17:37:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:37:12,940 INFO L225 Difference]: With dead ends: 211225 [2021-12-06 17:37:12,941 INFO L226 Difference]: Without dead ends: 117495 [2021-12-06 17:37:13,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:37:13,299 INFO L933 BasicCegarLoop]: 3139 mSDtfsCounter, 2399 mSDsluCounter, 14896 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 18035 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:37:13,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 18035 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:37:13,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117495 states. [2021-12-06 17:37:16,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117495 to 93773. [2021-12-06 17:37:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93773 states, 65517 states have (on average 1.3083321885922738) internal successors, (85718), 66785 states have internal predecessors, (85718), 23583 states have call successors, (23583), 4631 states have call predecessors, (23583), 4672 states have return successors, (23710), 23182 states have call predecessors, (23710), 23582 states have call successors, (23710) [2021-12-06 17:37:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93773 states to 93773 states and 133011 transitions. [2021-12-06 17:37:16,726 INFO L78 Accepts]: Start accepts. Automaton has 93773 states and 133011 transitions. Word has length 108 [2021-12-06 17:37:16,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:37:16,727 INFO L470 AbstractCegarLoop]: Abstraction has 93773 states and 133011 transitions. [2021-12-06 17:37:16,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:37:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 93773 states and 133011 transitions. [2021-12-06 17:37:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 17:37:16,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:37:16,732 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:37:16,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 17:37:16,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:37:16,934 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:37:16,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:37:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1196522780, now seen corresponding path program 1 times [2021-12-06 17:37:16,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:37:16,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86204826] [2021-12-06 17:37:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:37:16,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:37:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:37:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:37:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:37:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:37:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:37:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:37:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 17:37:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 17:37:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:37:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:37:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 17:37:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 17:37:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 17:37:17,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:37:17,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86204826] [2021-12-06 17:37:17,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86204826] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:37:17,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003324074] [2021-12-06 17:37:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:37:17,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:37:17,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:37:17,145 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:37:17,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 17:37:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:37:17,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 2014 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 17:37:17,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:37:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 17:37:17,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:37:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:37:17,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003324074] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:37:17,865 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:37:17,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 22 [2021-12-06 17:37:17,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024888244] [2021-12-06 17:37:17,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:37:17,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 17:37:17,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:37:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 17:37:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:37:17,867 INFO L87 Difference]: Start difference. First operand 93773 states and 133011 transitions. Second operand has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 15 states have internal predecessors, (128), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2021-12-06 17:37:56,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:37:56,855 INFO L93 Difference]: Finished difference Result 299117 states and 431502 transitions. [2021-12-06 17:37:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-06 17:37:56,856 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 15 states have internal predecessors, (128), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 121 [2021-12-06 17:37:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:37:57,547 INFO L225 Difference]: With dead ends: 299117 [2021-12-06 17:37:57,547 INFO L226 Difference]: Without dead ends: 204969 [2021-12-06 17:37:57,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6033 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2357, Invalid=14413, Unknown=0, NotChecked=0, Total=16770 [2021-12-06 17:37:57,823 INFO L933 BasicCegarLoop]: 5762 mSDtfsCounter, 19545 mSDsluCounter, 63946 mSDsCounter, 0 mSdLazyCounter, 53733 mSolverCounterSat, 13677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20505 SdHoareTripleChecker+Valid, 69708 SdHoareTripleChecker+Invalid, 67410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 13677 IncrementalHoareTripleChecker+Valid, 53733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:37:57,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20505 Valid, 69708 Invalid, 67410 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [13677 Valid, 53733 Invalid, 0 Unknown, 0 Unchecked, 31.1s Time] [2021-12-06 17:37:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204969 states. [2021-12-06 17:38:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204969 to 151895. [2021-12-06 17:38:03,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151895 states, 106089 states have (on average 1.3081280811394207) internal successors, (138778), 108131 states have internal predecessors, (138778), 38243 states have call successors, (38243), 7527 states have call predecessors, (38243), 7562 states have return successors, (38426), 37574 states have call predecessors, (38426), 38242 states have call successors, (38426) [2021-12-06 17:38:04,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151895 states to 151895 states and 215447 transitions. [2021-12-06 17:38:04,197 INFO L78 Accepts]: Start accepts. Automaton has 151895 states and 215447 transitions. Word has length 121 [2021-12-06 17:38:04,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:38:04,197 INFO L470 AbstractCegarLoop]: Abstraction has 151895 states and 215447 transitions. [2021-12-06 17:38:04,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 15 states have internal predecessors, (128), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2021-12-06 17:38:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 151895 states and 215447 transitions. [2021-12-06 17:38:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 17:38:04,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:38:04,205 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:38:04,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 17:38:04,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 17:38:04,406 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:38:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:38:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -727066682, now seen corresponding path program 1 times [2021-12-06 17:38:04,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:38:04,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821901389] [2021-12-06 17:38:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:38:04,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:38:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:38:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:38:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:38:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:38:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:38:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:38:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 17:38:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:38:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 17:38:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 17:38:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:38:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 17:38:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 17:38:04,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:38:04,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821901389] [2021-12-06 17:38:04,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821901389] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:38:04,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655392927] [2021-12-06 17:38:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:38:04,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:38:04,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:38:04,596 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:38:04,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 17:38:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:04,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 17:38:04,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:38:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 17:38:05,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:38:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:38:05,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655392927] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:38:05,263 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:38:05,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 22 [2021-12-06 17:38:05,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548347631] [2021-12-06 17:38:05,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:38:05,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 17:38:05,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:38:05,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 17:38:05,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:38:05,264 INFO L87 Difference]: Start difference. First operand 151895 states and 215447 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 15 states have internal predecessors, (130), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2021-12-06 17:38:47,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:38:47,201 INFO L93 Difference]: Finished difference Result 495727 states and 714268 transitions. [2021-12-06 17:38:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-06 17:38:47,203 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 15 states have internal predecessors, (130), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 122 [2021-12-06 17:38:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:38:48,583 INFO L225 Difference]: With dead ends: 495727 [2021-12-06 17:38:48,583 INFO L226 Difference]: Without dead ends: 343205 [2021-12-06 17:38:49,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6136 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2357, Invalid=14413, Unknown=0, NotChecked=0, Total=16770 [2021-12-06 17:38:49,062 INFO L933 BasicCegarLoop]: 5766 mSDtfsCounter, 18359 mSDsluCounter, 58545 mSDsCounter, 0 mSdLazyCounter, 49345 mSolverCounterSat, 12014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19321 SdHoareTripleChecker+Valid, 64311 SdHoareTripleChecker+Invalid, 61359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 12014 IncrementalHoareTripleChecker+Valid, 49345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:38:49,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19321 Valid, 64311 Invalid, 61359 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [12014 Valid, 49345 Invalid, 0 Unknown, 0 Unchecked, 30.0s Time] [2021-12-06 17:38:49,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343205 states. [2021-12-06 17:38:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343205 to 227399. [2021-12-06 17:38:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227399 states, 158787 states have (on average 1.3079597196244026) internal successors, (207687), 161845 states have internal predecessors, (207687), 57291 states have call successors, (57291), 11295 states have call predecessors, (57291), 11320 states have return successors, (57544), 56260 states have call predecessors, (57544), 57290 states have call successors, (57544) [2021-12-06 17:39:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227399 states to 227399 states and 322522 transitions. [2021-12-06 17:39:00,144 INFO L78 Accepts]: Start accepts. Automaton has 227399 states and 322522 transitions. Word has length 122 [2021-12-06 17:39:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:39:00,145 INFO L470 AbstractCegarLoop]: Abstraction has 227399 states and 322522 transitions. [2021-12-06 17:39:00,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 15 states have internal predecessors, (130), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2021-12-06 17:39:00,145 INFO L276 IsEmpty]: Start isEmpty. Operand 227399 states and 322522 transitions. [2021-12-06 17:39:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-06 17:39:00,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:39:00,152 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:39:00,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 17:39:00,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 17:39:00,354 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:39:00,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:39:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1213133365, now seen corresponding path program 1 times [2021-12-06 17:39:00,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:39:00,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506658659] [2021-12-06 17:39:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:39:00,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:39:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:39:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:39:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:39:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:39:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:39:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:39:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:39:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 17:39:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:39:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:39:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 17:39:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 17:39:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 17:39:00,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:39:00,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506658659] [2021-12-06 17:39:00,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506658659] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:39:00,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070433085] [2021-12-06 17:39:00,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:39:00,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:39:00,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:39:00,719 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:39:00,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 17:39:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:01,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 2018 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 17:39:01,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:39:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 17:39:01,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:39:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:39:01,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070433085] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:39:01,381 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:39:01,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 22 [2021-12-06 17:39:01,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354044707] [2021-12-06 17:39:01,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:39:01,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 17:39:01,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:39:01,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 17:39:01,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:39:01,382 INFO L87 Difference]: Start difference. First operand 227399 states and 322522 transitions. Second operand has 22 states, 22 states have (on average 6.0) internal successors, (132), 15 states have internal predecessors, (132), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2021-12-06 17:39:41,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:39:41,400 INFO L93 Difference]: Finished difference Result 675601 states and 974013 transitions. [2021-12-06 17:39:41,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-12-06 17:39:41,401 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.0) internal successors, (132), 15 states have internal predecessors, (132), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 123 [2021-12-06 17:39:41,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:39:43,216 INFO L225 Difference]: With dead ends: 675601 [2021-12-06 17:39:43,217 INFO L226 Difference]: Without dead ends: 447351 [2021-12-06 17:39:44,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 275 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6173 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2357, Invalid=14413, Unknown=0, NotChecked=0, Total=16770 [2021-12-06 17:39:44,179 INFO L933 BasicCegarLoop]: 5390 mSDtfsCounter, 19999 mSDsluCounter, 47378 mSDsCounter, 0 mSdLazyCounter, 43050 mSolverCounterSat, 12659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20961 SdHoareTripleChecker+Valid, 52768 SdHoareTripleChecker+Invalid, 55709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12659 IncrementalHoareTripleChecker+Valid, 43050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:39:44,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20961 Valid, 52768 Invalid, 55709 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12659 Valid, 43050 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2021-12-06 17:39:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447351 states. [2021-12-06 17:39:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447351 to 256002. [2021-12-06 17:39:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256002 states, 178700 states have (on average 1.3076329043088977) internal successors, (233674), 182066 states have internal predecessors, (233674), 64589 states have call successors, (64589), 12745 states have call predecessors, (64589), 12712 states have return successors, (64822), 63444 states have call predecessors, (64822), 64588 states have call successors, (64822) [2021-12-06 17:39:59,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256002 states to 256002 states and 363085 transitions. [2021-12-06 17:39:59,521 INFO L78 Accepts]: Start accepts. Automaton has 256002 states and 363085 transitions. Word has length 123 [2021-12-06 17:39:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:39:59,521 INFO L470 AbstractCegarLoop]: Abstraction has 256002 states and 363085 transitions. [2021-12-06 17:39:59,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.0) internal successors, (132), 15 states have internal predecessors, (132), 5 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2021-12-06 17:39:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 256002 states and 363085 transitions. [2021-12-06 17:39:59,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 17:39:59,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:39:59,526 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:59,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 17:39:59,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 17:39:59,727 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:39:59,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:39:59,728 INFO L85 PathProgramCache]: Analyzing trace with hash -461305623, now seen corresponding path program 1 times [2021-12-06 17:39:59,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:39:59,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907733413] [2021-12-06 17:39:59,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:39:59,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:39:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:39:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:39:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:39:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:39:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:39:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:39:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:39:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:39:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 17:39:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:39:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:39:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:39:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 17:39:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 17:39:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:39:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 17:39:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 17:39:59,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:39:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907733413] [2021-12-06 17:39:59,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907733413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:39:59,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:39:59,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:39:59,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653417412] [2021-12-06 17:39:59,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:39:59,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:39:59,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:39:59,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:39:59,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:39:59,897 INFO L87 Difference]: Start difference. First operand 256002 states and 363085 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 17:40:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:40:18,433 INFO L93 Difference]: Finished difference Result 736165 states and 1052786 transitions. [2021-12-06 17:40:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:40:18,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 137 [2021-12-06 17:40:18,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:40:20,625 INFO L225 Difference]: With dead ends: 736165 [2021-12-06 17:40:20,625 INFO L226 Difference]: Without dead ends: 480180 [2021-12-06 17:40:21,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:40:21,541 INFO L933 BasicCegarLoop]: 3069 mSDtfsCounter, 3176 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 2998 mSolverCounterSat, 2078 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3366 SdHoareTripleChecker+Valid, 7046 SdHoareTripleChecker+Invalid, 5076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2078 IncrementalHoareTripleChecker+Valid, 2998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:40:21,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3366 Valid, 7046 Invalid, 5076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2078 Valid, 2998 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 17:40:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480180 states. [2021-12-06 17:40:38,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480180 to 386382. [2021-12-06 17:40:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386382 states, 270416 states have (on average 1.311534820424827) internal successors, (354660), 274901 states have internal predecessors, (354660), 95809 states have call successors, (95809), 20150 states have call predecessors, (95809), 20156 states have return successors, (96240), 94263 states have call predecessors, (96240), 95808 states have call successors, (96240) [2021-12-06 17:40:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386382 states to 386382 states and 546709 transitions. [2021-12-06 17:40:40,777 INFO L78 Accepts]: Start accepts. Automaton has 386382 states and 546709 transitions. Word has length 137 [2021-12-06 17:40:40,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:40:40,778 INFO L470 AbstractCegarLoop]: Abstraction has 386382 states and 546709 transitions. [2021-12-06 17:40:40,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 17:40:40,778 INFO L276 IsEmpty]: Start isEmpty. Operand 386382 states and 546709 transitions. [2021-12-06 17:40:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-06 17:40:40,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:40:40,784 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:40:40,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 17:40:40,784 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:40:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:40:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash -151387482, now seen corresponding path program 1 times [2021-12-06 17:40:40,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:40:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892146793] [2021-12-06 17:40:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:40:40,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:40:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:40:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:40:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:40:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:40:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:40:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:40:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:40:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:40:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 17:40:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:40:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:40:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:40:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:40:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:40:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 17:40:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:40:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 17:40:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 17:40:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:40:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 17:40:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-12-06 17:40:40,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:40:40,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892146793] [2021-12-06 17:40:40,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892146793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:40:40,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:40:40,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:40:40,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086021370] [2021-12-06 17:40:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:40:40,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:40:40,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:40:40,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:40:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:40:40,986 INFO L87 Difference]: Start difference. First operand 386382 states and 546709 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-06 17:41:06,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:41:06,203 INFO L93 Difference]: Finished difference Result 1010596 states and 1442161 transitions. [2021-12-06 17:41:06,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:41:06,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 175 [2021-12-06 17:41:06,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:41:08,830 INFO L225 Difference]: With dead ends: 1010596 [2021-12-06 17:41:08,830 INFO L226 Difference]: Without dead ends: 624242 [2021-12-06 17:41:10,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:41:10,361 INFO L933 BasicCegarLoop]: 3607 mSDtfsCounter, 3266 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 1903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3512 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 4982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1903 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:41:10,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3512 Valid, 7569 Invalid, 4982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1903 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-06 17:41:10,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624242 states. [2021-12-06 17:41:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624242 to 540754. [2021-12-06 17:41:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540754 states, 379583 states have (on average 1.3130804066567787) internal successors, (498423), 385379 states have internal predecessors, (498423), 132346 states have call successors, (132346), 28774 states have call predecessors, (132346), 28824 states have return successors, (132993), 130311 states have call predecessors, (132993), 132345 states have call successors, (132993) [2021-12-06 17:41:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540754 states to 540754 states and 763762 transitions. [2021-12-06 17:41:36,346 INFO L78 Accepts]: Start accepts. Automaton has 540754 states and 763762 transitions. Word has length 175 [2021-12-06 17:41:36,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:41:36,347 INFO L470 AbstractCegarLoop]: Abstraction has 540754 states and 763762 transitions. [2021-12-06 17:41:36,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-06 17:41:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 540754 states and 763762 transitions. [2021-12-06 17:41:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-12-06 17:41:36,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:41:36,359 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:36,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 17:41:36,359 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:41:36,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:41:36,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1362808436, now seen corresponding path program 1 times [2021-12-06 17:41:36,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:41:36,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503808633] [2021-12-06 17:41:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:41:36,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:41:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:41:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:41:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:41:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:41:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:41:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:41:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:41:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:41:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 17:41:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:41:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:41:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 17:41:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 17:41:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 17:41:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:41:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 17:41:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 17:41:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:41:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:41:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:41:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 17:41:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 17:41:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:41:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:41:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 17:41:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-06 17:41:36,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:41:36,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503808633] [2021-12-06 17:41:36,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503808633] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:41:36,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993069087] [2021-12-06 17:41:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:41:36,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:41:36,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:41:36,590 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:41:36,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 17:41:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 2449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:41:36,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:41:37,127 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-12-06 17:41:37,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:41:37,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993069087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:41:37,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:41:37,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-06 17:41:37,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713234440] [2021-12-06 17:41:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:41:37,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:41:37,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:41:37,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:41:37,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:41:37,129 INFO L87 Difference]: Start difference. First operand 540754 states and 763762 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 17:42:01,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:01,118 INFO L93 Difference]: Finished difference Result 1240944 states and 1751075 transitions. [2021-12-06 17:42:01,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:42:01,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2021-12-06 17:42:01,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:04,323 INFO L225 Difference]: With dead ends: 1240944 [2021-12-06 17:42:04,323 INFO L226 Difference]: Without dead ends: 700218 [2021-12-06 17:42:06,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:42:06,358 INFO L933 BasicCegarLoop]: 2986 mSDtfsCounter, 2313 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 4829 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:06,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2313 Valid, 4829 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:42:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700218 states. [2021-12-06 17:42:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700218 to 700215. [2021-12-06 17:42:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700215 states, 491862 states have (on average 1.3133663507243902) internal successors, (645995), 499212 states have internal predecessors, (645995), 170082 states have call successors, (170082), 38257 states have call predecessors, (170082), 38270 states have return successors, (170945), 167477 states have call predecessors, (170945), 170081 states have call successors, (170945) [2021-12-06 17:42:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700215 states to 700215 states and 987022 transitions. [2021-12-06 17:42:38,624 INFO L78 Accepts]: Start accepts. Automaton has 700215 states and 987022 transitions. Word has length 194 [2021-12-06 17:42:38,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:38,625 INFO L470 AbstractCegarLoop]: Abstraction has 700215 states and 987022 transitions. [2021-12-06 17:42:38,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 17:42:38,625 INFO L276 IsEmpty]: Start isEmpty. Operand 700215 states and 987022 transitions. [2021-12-06 17:42:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-06 17:42:38,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:38,640 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:42:38,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 17:42:38,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2546032f-8ee2-483d-b806-b4cd2930cd9a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-06 17:42:38,842 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:42:38,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1953143380, now seen corresponding path program 1 times [2021-12-06 17:42:38,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:38,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053642497] [2021-12-06 17:42:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:38,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:42:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:42:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:42:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:42:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 17:42:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:42:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 17:42:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:42:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 17:42:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:42:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:42:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 17:42:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 17:42:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 17:42:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 17:42:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 17:42:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 17:42:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 17:42:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 17:42:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:42:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:42:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 17:42:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 17:42:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:42:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:42:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-06 17:42:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-12-06 17:42:39,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:39,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053642497] [2021-12-06 17:42:39,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053642497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:39,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:39,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:42:39,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857965787] [2021-12-06 17:42:39,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:39,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:42:39,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:39,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:42:39,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:42:39,219 INFO L87 Difference]: Start difference. First operand 700215 states and 987022 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)