./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN --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 32bit --witnessprinter.graph.data.programhash e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:29:59,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:29:59,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:29:59,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:29:59,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:29:59,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:29:59,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:29:59,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:29:59,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:29:59,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:29:59,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:29:59,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:29:59,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:29:59,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:29:59,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:29:59,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:29:59,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:29:59,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:29:59,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:29:59,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:29:59,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:29:59,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:29:59,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:29:59,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:29:59,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:29:59,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:29:59,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:29:59,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:29:59,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:29:59,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:29:59,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:29:59,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:29:59,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:29:59,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:29:59,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:29:59,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:29:59,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:29:59,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:29:59,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:29:59,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:29:59,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:29:59,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:29:59,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:29:59,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:29:59,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:29:59,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:29:59,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:29:59,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:29:59,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:29:59,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:29:59,770 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:29:59,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:29:59,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:29:59,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:29:59,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:29:59,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:29:59,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:29:59,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:29:59,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:29:59,773 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:29:59,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:29:59,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:29:59,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:29:59,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:29:59,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:29:59,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:29:59,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:29:59,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:29:59,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:29:59,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:29:59,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:29:59,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:29:59,776 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:29:59,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:29:59,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:29:59,777 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_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 [2022-11-20 10:30:00,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:00,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:00,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:00,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:00,141 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:00,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-11-20 10:30:03,311 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:03,680 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:03,680 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-11-20 10:30:03,702 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/data/74c84cd26/738d851d302a462d83831f6de205fa66/FLAG54137c0c5 [2022-11-20 10:30:03,723 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/data/74c84cd26/738d851d302a462d83831f6de205fa66 [2022-11-20 10:30:03,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:03,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:03,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:03,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:03,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:03,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:03" (1/1) ... [2022-11-20 10:30:03,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9982f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:03, skipping insertion in model container [2022-11-20 10:30:03,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:03" (1/1) ... [2022-11-20 10:30:03,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:03,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:04,371 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-11-20 10:30:04,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:04,432 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:30:04,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-11-20 10:30:04,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:04,601 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:30:04,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04 WrapperNode [2022-11-20 10:30:04,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:04,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:04,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:30:04,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:30:04,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,727 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1084 [2022-11-20 10:30:04,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:04,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:30:04,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:30:04,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:30:04,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,856 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:30:04,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:30:04,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:30:04,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:30:04,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (1/1) ... [2022-11-20 10:30:04,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:04,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:04,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:04,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:30:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 10:30:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 10:30:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 10:30:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 10:30:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 10:30:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 10:30:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 10:30:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 10:30:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 10:30:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 10:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 10:30:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 10:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-20 10:30:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-20 10:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 10:30:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 10:30:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 10:30:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 10:30:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 10:30:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 10:30:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 10:30:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 10:30:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 10:30:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 10:30:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 10:30:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-20 10:30:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-20 10:30:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 10:30:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 10:30:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:30:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 10:30:04,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 10:30:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 10:30:04,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 10:30:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 10:30:04,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 10:30:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 10:30:04,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 10:30:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 10:30:04,982 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 10:30:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 10:30:04,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 10:30:04,983 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 10:30:04,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 10:30:04,983 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 10:30:04,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 10:30:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 10:30:04,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 10:30:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:30:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 10:30:04,984 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 10:30:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 10:30:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 10:30:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:30:04,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:30:05,298 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:30:05,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:30:06,410 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:30:06,423 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:30:06,429 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:30:06,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:06 BoogieIcfgContainer [2022-11-20 10:30:06,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:30:06,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:30:06,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:30:06,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:30:06,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:30:03" (1/3) ... [2022-11-20 10:30:06,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743c588a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:06, skipping insertion in model container [2022-11-20 10:30:06,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:04" (2/3) ... [2022-11-20 10:30:06,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743c588a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:06, skipping insertion in model container [2022-11-20 10:30:06,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:06" (3/3) ... [2022-11-20 10:30:06,449 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2022-11-20 10:30:06,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:30:06,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:30:06,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:06,586 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@138323ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:06,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:30:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 412 states, 319 states have (on average 1.5517241379310345) internal successors, (495), 324 states have internal predecessors, (495), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-20 10:30:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 10:30:06,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:06,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:30:06,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash 600490209, now seen corresponding path program 1 times [2022-11-20 10:30:06,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:06,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071942233] [2022-11-20 10:30:06,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:06,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:30:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 10:30:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:30:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 10:30:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 10:30:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 10:30:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 10:30:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:30:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:30:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 10:30:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 10:30:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:30:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 10:30:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:30:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 10:30:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 10:30:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-20 10:30:07,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:07,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071942233] [2022-11-20 10:30:07,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071942233] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:07,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883608012] [2022-11-20 10:30:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:07,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:07,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:07,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:30:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:30:08,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-20 10:30:08,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:08,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883608012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:08,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:08,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-20 10:30:08,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996795453] [2022-11-20 10:30:08,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:08,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:30:08,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:08,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:30:08,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:30:08,126 INFO L87 Difference]: Start difference. First operand has 412 states, 319 states have (on average 1.5517241379310345) internal successors, (495), 324 states have internal predecessors, (495), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:08,195 INFO L93 Difference]: Finished difference Result 626 states and 936 transitions. [2022-11-20 10:30:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:30:08,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2022-11-20 10:30:08,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:08,212 INFO L225 Difference]: With dead ends: 626 [2022-11-20 10:30:08,212 INFO L226 Difference]: Without dead ends: 405 [2022-11-20 10:30:08,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:30:08,222 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:08,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:08,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-11-20 10:30:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-11-20 10:30:08,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 313 states have (on average 1.5463258785942493) internal successors, (484), 317 states have internal predecessors, (484), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-20 10:30:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 615 transitions. [2022-11-20 10:30:08,306 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 615 transitions. Word has length 142 [2022-11-20 10:30:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:08,308 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 615 transitions. [2022-11-20 10:30:08,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 615 transitions. [2022-11-20 10:30:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 10:30:08,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:08,315 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:30:08,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:08,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 10:30:08,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:08,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash -221791313, now seen corresponding path program 1 times [2022-11-20 10:30:08,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:08,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025833599] [2022-11-20 10:30:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:08,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:30:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 10:30:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:30:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 10:30:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 10:30:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:30:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 10:30:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 10:30:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 10:30:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 10:30:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:08,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 10:30:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:30:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 10:30:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:30:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:30:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:30:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-20 10:30:09,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:09,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025833599] [2022-11-20 10:30:09,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025833599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:09,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289507240] [2022-11-20 10:30:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:09,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:09,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:09,046 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:09,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:30:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:09,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:30:09,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-20 10:30:09,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:09,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289507240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:09,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:09,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 10:30:09,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526567034] [2022-11-20 10:30:09,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:09,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:09,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:09,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:09,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:30:09,490 INFO L87 Difference]: Start difference. First operand 405 states and 615 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:09,556 INFO L93 Difference]: Finished difference Result 616 states and 914 transitions. [2022-11-20 10:30:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:09,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2022-11-20 10:30:09,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:09,562 INFO L225 Difference]: With dead ends: 616 [2022-11-20 10:30:09,562 INFO L226 Difference]: Without dead ends: 408 [2022-11-20 10:30:09,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:30:09,566 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 1 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:09,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:09,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-20 10:30:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407. [2022-11-20 10:30:09,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 315 states have (on average 1.542857142857143) internal successors, (486), 319 states have internal predecessors, (486), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-20 10:30:09,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 617 transitions. [2022-11-20 10:30:09,613 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 617 transitions. Word has length 143 [2022-11-20 10:30:09,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:09,616 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 617 transitions. [2022-11-20 10:30:09,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 617 transitions. [2022-11-20 10:30:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 10:30:09,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:09,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:30:09,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:09,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:09,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:09,830 INFO L85 PathProgramCache]: Analyzing trace with hash -848256898, now seen corresponding path program 1 times [2022-11-20 10:30:09,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:09,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880889669] [2022-11-20 10:30:09,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:09,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:30:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 10:30:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:30:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 10:30:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:30:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 10:30:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:30:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:30:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:30:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 10:30:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 10:30:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 10:30:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:30:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 10:30:10,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:10,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880889669] [2022-11-20 10:30:10,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880889669] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:10,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764360530] [2022-11-20 10:30:10,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:10,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:10,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:10,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:10,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:30:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:10,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:30:10,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 10:30:10,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:10,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764360530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:10,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:10,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 10:30:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442408125] [2022-11-20 10:30:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:10,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:10,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:10,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:10,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:30:10,571 INFO L87 Difference]: Start difference. First operand 407 states and 617 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:30:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:10,621 INFO L93 Difference]: Finished difference Result 867 states and 1334 transitions. [2022-11-20 10:30:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:10,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-11-20 10:30:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:10,627 INFO L225 Difference]: With dead ends: 867 [2022-11-20 10:30:10,628 INFO L226 Difference]: Without dead ends: 487 [2022-11-20 10:30:10,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:30:10,633 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 142 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:10,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1206 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:10,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-11-20 10:30:10,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 479. [2022-11-20 10:30:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 373 states have (on average 1.5630026809651474) internal successors, (583), 377 states have internal predecessors, (583), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-20 10:30:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 742 transitions. [2022-11-20 10:30:10,686 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 742 transitions. Word has length 133 [2022-11-20 10:30:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:10,687 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 742 transitions. [2022-11-20 10:30:10,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:30:10,687 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 742 transitions. [2022-11-20 10:30:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 10:30:10,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:10,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:30:10,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:10,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:10,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:10,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:10,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2117883540, now seen corresponding path program 1 times [2022-11-20 10:30:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:10,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045796710] [2022-11-20 10:30:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:10,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 10:30:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 10:30:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:30:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 10:30:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:30:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 10:30:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 10:30:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:30:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:30:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 10:30:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 10:30:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:30:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:30:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 10:30:11,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:11,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045796710] [2022-11-20 10:30:11,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045796710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:11,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034254317] [2022-11-20 10:30:11,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:11,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:11,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:11,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:11,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:30:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:11,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:30:11,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 10:30:11,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:11,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034254317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:11,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:11,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-20 10:30:11,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656297554] [2022-11-20 10:30:11,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:11,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:30:11,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:11,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:30:11,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:30:11,620 INFO L87 Difference]: Start difference. First operand 479 states and 742 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:30:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:11,721 INFO L93 Difference]: Finished difference Result 949 states and 1474 transitions. [2022-11-20 10:30:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:30:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2022-11-20 10:30:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:11,726 INFO L225 Difference]: With dead ends: 949 [2022-11-20 10:30:11,726 INFO L226 Difference]: Without dead ends: 481 [2022-11-20 10:30:11,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:11,732 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 160 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:11,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2241 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:11,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-20 10:30:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-11-20 10:30:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 374 states have (on average 1.5614973262032086) internal successors, (584), 379 states have internal predecessors, (584), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (81), 78 states have call predecessors, (81), 79 states have call successors, (81) [2022-11-20 10:30:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 745 transitions. [2022-11-20 10:30:11,773 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 745 transitions. Word has length 134 [2022-11-20 10:30:11,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:11,774 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 745 transitions. [2022-11-20 10:30:11,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:30:11,774 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 745 transitions. [2022-11-20 10:30:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-20 10:30:11,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:11,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:11,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:11,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:11,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash -8021744, now seen corresponding path program 1 times [2022-11-20 10:30:11,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:11,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811840179] [2022-11-20 10:30:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:11,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-20 10:30:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 10:30:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 10:30:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 10:30:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 10:30:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 10:30:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 10:30:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:30:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 10:30:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 10:30:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:30:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 10:30:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 10:30:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 10:30:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 10:30:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:30:12,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:12,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811840179] [2022-11-20 10:30:12,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811840179] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:12,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115911670] [2022-11-20 10:30:12,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:12,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:12,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:12,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:12,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:30:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:12,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:12,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 10:30:12,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:12,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115911670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:12,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:12,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-20 10:30:12,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641047922] [2022-11-20 10:30:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:12,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:30:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:12,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:30:12,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:30:12,760 INFO L87 Difference]: Start difference. First operand 481 states and 745 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 10:30:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:12,854 INFO L93 Difference]: Finished difference Result 951 states and 1479 transitions. [2022-11-20 10:30:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:30:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2022-11-20 10:30:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:12,860 INFO L225 Difference]: With dead ends: 951 [2022-11-20 10:30:12,860 INFO L226 Difference]: Without dead ends: 483 [2022-11-20 10:30:12,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:30:12,863 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 159 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:12,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2230 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-20 10:30:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-11-20 10:30:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.56) internal successors, (585), 381 states have internal predecessors, (585), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-11-20 10:30:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 751 transitions. [2022-11-20 10:30:12,895 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 751 transitions. Word has length 154 [2022-11-20 10:30:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:12,896 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 751 transitions. [2022-11-20 10:30:12,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 10:30:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 751 transitions. [2022-11-20 10:30:12,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-20 10:30:12,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:12,899 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:12,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:13,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:13,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash 710296192, now seen corresponding path program 1 times [2022-11-20 10:30:13,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:13,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397084504] [2022-11-20 10:30:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 10:30:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 10:30:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 10:30:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 10:30:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 10:30:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 10:30:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 10:30:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:30:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 10:30:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:30:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 10:30:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 10:30:13,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397084504] [2022-11-20 10:30:13,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397084504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:13,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:13,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:30:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857008691] [2022-11-20 10:30:13,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:30:13,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:30:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:30:13,373 INFO L87 Difference]: Start difference. First operand 483 states and 751 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:30:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:16,571 INFO L93 Difference]: Finished difference Result 1137 states and 1794 transitions. [2022-11-20 10:30:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:30:16,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2022-11-20 10:30:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:16,577 INFO L225 Difference]: With dead ends: 1137 [2022-11-20 10:30:16,577 INFO L226 Difference]: Without dead ends: 677 [2022-11-20 10:30:16,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:30:16,580 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1506 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:16,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1248 Invalid, 3721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 10:30:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-11-20 10:30:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 483. [2022-11-20 10:30:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.56) internal successors, (585), 381 states have internal predecessors, (585), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 78 states have call predecessors, (85), 79 states have call successors, (85) [2022-11-20 10:30:16,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 750 transitions. [2022-11-20 10:30:16,641 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 750 transitions. Word has length 136 [2022-11-20 10:30:16,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:16,642 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 750 transitions. [2022-11-20 10:30:16,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:30:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 750 transitions. [2022-11-20 10:30:16,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-20 10:30:16,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:16,646 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-20 10:30:16,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:30:16,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:16,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:16,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1827459276, now seen corresponding path program 2 times [2022-11-20 10:30:16,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:16,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282213555] [2022-11-20 10:30:16,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:16,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 10:30:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 10:30:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 10:30:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:30:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 10:30:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 10:30:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 10:30:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:30:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:30:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:30:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:30:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 10:30:16,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:16,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282213555] [2022-11-20 10:30:16,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282213555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:16,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:16,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:30:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161933684] [2022-11-20 10:30:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:30:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:30:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:30:16,952 INFO L87 Difference]: Start difference. First operand 483 states and 750 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:30:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:20,147 INFO L93 Difference]: Finished difference Result 1139 states and 1797 transitions. [2022-11-20 10:30:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:30:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2022-11-20 10:30:20,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:20,154 INFO L225 Difference]: With dead ends: 1139 [2022-11-20 10:30:20,154 INFO L226 Difference]: Without dead ends: 679 [2022-11-20 10:30:20,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:30:20,160 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1514 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:20,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 1248 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 10:30:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-11-20 10:30:20,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 485. [2022-11-20 10:30:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 383 states have internal predecessors, (586), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (87), 78 states have call predecessors, (87), 79 states have call successors, (87) [2022-11-20 10:30:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 753 transitions. [2022-11-20 10:30:20,209 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 753 transitions. Word has length 137 [2022-11-20 10:30:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:20,210 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 753 transitions. [2022-11-20 10:30:20,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:30:20,210 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 753 transitions. [2022-11-20 10:30:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 10:30:20,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:20,214 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:20,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:30:20,214 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash 734695451, now seen corresponding path program 1 times [2022-11-20 10:30:20,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:20,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449294274] [2022-11-20 10:30:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:20,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:30:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:30:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 10:30:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 10:30:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 10:30:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:30:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:30:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:30:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 10:30:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:30:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:20,571 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 10:30:20,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:20,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449294274] [2022-11-20 10:30:20,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449294274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:20,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:20,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:30:20,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453108286] [2022-11-20 10:30:20,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:20,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:30:20,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:20,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:30:20,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:30:20,574 INFO L87 Difference]: Start difference. First operand 485 states and 753 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 10:30:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:24,994 INFO L93 Difference]: Finished difference Result 1137 states and 1792 transitions. [2022-11-20 10:30:24,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:30:24,995 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2022-11-20 10:30:24,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:24,999 INFO L225 Difference]: With dead ends: 1137 [2022-11-20 10:30:25,000 INFO L226 Difference]: Without dead ends: 679 [2022-11-20 10:30:25,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:30:25,003 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1654 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5203 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 5203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:25,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 1629 Invalid, 5859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [656 Valid, 5203 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 10:30:25,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-11-20 10:30:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 485. [2022-11-20 10:30:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 383 states have internal predecessors, (586), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-11-20 10:30:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 752 transitions. [2022-11-20 10:30:25,059 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 752 transitions. Word has length 138 [2022-11-20 10:30:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:25,060 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 752 transitions. [2022-11-20 10:30:25,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 10:30:25,060 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 752 transitions. [2022-11-20 10:30:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-20 10:30:25,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:25,064 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:30:25,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:30:25,065 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1770125293, now seen corresponding path program 1 times [2022-11-20 10:30:25,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:25,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484103970] [2022-11-20 10:30:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:25,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:30:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 10:30:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 10:30:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 10:30:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 10:30:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 10:30:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:30:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:30:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 10:30:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 10:30:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 10:30:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 10:30:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 10:30:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:30:25,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:25,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484103970] [2022-11-20 10:30:25,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484103970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:25,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:25,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:30:25,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110360904] [2022-11-20 10:30:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:25,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:30:25,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:30:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:30:25,405 INFO L87 Difference]: Start difference. First operand 485 states and 752 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 10:30:29,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:29,768 INFO L93 Difference]: Finished difference Result 1139 states and 1798 transitions. [2022-11-20 10:30:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:30:29,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 158 [2022-11-20 10:30:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:29,774 INFO L225 Difference]: With dead ends: 1139 [2022-11-20 10:30:29,774 INFO L226 Difference]: Without dead ends: 681 [2022-11-20 10:30:29,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:30:29,777 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1657 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5176 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 5176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:29,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1629 Invalid, 5840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [664 Valid, 5176 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 10:30:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-11-20 10:30:29,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 487. [2022-11-20 10:30:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 377 states have (on average 1.557029177718833) internal successors, (587), 385 states have internal predecessors, (587), 80 states have call successors, (80), 25 states have call predecessors, (80), 29 states have return successors, (91), 78 states have call predecessors, (91), 79 states have call successors, (91) [2022-11-20 10:30:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 758 transitions. [2022-11-20 10:30:29,832 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 758 transitions. Word has length 158 [2022-11-20 10:30:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:29,832 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 758 transitions. [2022-11-20 10:30:29,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 10:30:29,833 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 758 transitions. [2022-11-20 10:30:29,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-20 10:30:29,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:29,836 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:29,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:30:29,837 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:29,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:29,837 INFO L85 PathProgramCache]: Analyzing trace with hash -389717706, now seen corresponding path program 1 times [2022-11-20 10:30:29,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:29,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876587727] [2022-11-20 10:30:29,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:29,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 10:30:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 10:30:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:30:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 10:30:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:30:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 10:30:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 10:30:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 10:30:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:30:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 10:30:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 10:30:30,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:30,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876587727] [2022-11-20 10:30:30,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876587727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:30,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074874457] [2022-11-20 10:30:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:30,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:30,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:30,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:30,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:30:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:30:30,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:30:30,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:30:30,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074874457] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:30,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:30,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-20 10:30:30,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357984473] [2022-11-20 10:30:30,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:30,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:30:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:30,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:30:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:30:30,750 INFO L87 Difference]: Start difference. First operand 487 states and 758 transitions. Second operand has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (38), 6 states have call predecessors, (38), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 10:30:36,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:36,809 INFO L93 Difference]: Finished difference Result 2048 states and 3436 transitions. [2022-11-20 10:30:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 10:30:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (38), 6 states have call predecessors, (38), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 140 [2022-11-20 10:30:36,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:36,821 INFO L225 Difference]: With dead ends: 2048 [2022-11-20 10:30:36,821 INFO L226 Difference]: Without dead ends: 1592 [2022-11-20 10:30:36,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-20 10:30:36,825 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 4263 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 7441 mSolverCounterSat, 1669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4265 SdHoareTripleChecker+Valid, 4105 SdHoareTripleChecker+Invalid, 9110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1669 IncrementalHoareTripleChecker+Valid, 7441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:36,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4265 Valid, 4105 Invalid, 9110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1669 Valid, 7441 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 10:30:36,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2022-11-20 10:30:36,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 930. [2022-11-20 10:30:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 741 states have (on average 1.6099865047233468) internal successors, (1193), 749 states have internal predecessors, (1193), 159 states have call successors, (159), 25 states have call predecessors, (159), 29 states have return successors, (180), 157 states have call predecessors, (180), 158 states have call successors, (180) [2022-11-20 10:30:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1532 transitions. [2022-11-20 10:30:36,979 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1532 transitions. Word has length 140 [2022-11-20 10:30:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:36,980 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1532 transitions. [2022-11-20 10:30:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (38), 6 states have call predecessors, (38), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 10:30:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1532 transitions. [2022-11-20 10:30:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-20 10:30:36,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:36,987 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:36,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 10:30:37,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ceb321b-344a-4dc7-ad68-eca24bd9f875/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:30:37,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:37,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash -139214911, now seen corresponding path program 1 times [2022-11-20 10:30:37,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:37,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854328209] [2022-11-20 10:30:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 10:30:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 10:30:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 10:30:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 10:30:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 10:30:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 10:30:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:30:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:30:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 10:30:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:30:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 10:30:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 10:30:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 10:30:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,362 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 10:30:37,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:37,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854328209] [2022-11-20 10:30:37,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854328209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:37,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:37,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:37,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334607336] [2022-11-20 10:30:37,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:37,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:37,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:37,366 INFO L87 Difference]: Start difference. First operand 930 states and 1532 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:39,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:39,874 INFO L93 Difference]: Finished difference Result 2399 states and 4044 transitions. [2022-11-20 10:30:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:39,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2022-11-20 10:30:39,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:39,885 INFO L225 Difference]: With dead ends: 2399 [2022-11-20 10:30:39,885 INFO L226 Difference]: Without dead ends: 1547 [2022-11-20 10:30:39,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:39,890 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1496 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:39,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1099 Invalid, 2533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 10:30:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2022-11-20 10:30:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1345. [2022-11-20 10:30:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1077 states have (on average 1.627669452181987) internal successors, (1753), 1085 states have internal predecessors, (1753), 238 states have call successors, (238), 25 states have call predecessors, (238), 29 states have return successors, (269), 236 states have call predecessors, (269), 237 states have call successors, (269) [2022-11-20 10:30:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2260 transitions. [2022-11-20 10:30:40,076 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2260 transitions. Word has length 162 [2022-11-20 10:30:40,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:40,077 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 2260 transitions. [2022-11-20 10:30:40,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2260 transitions. [2022-11-20 10:30:40,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 10:30:40,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:40,086 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:40,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:30:40,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:40,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 126129074, now seen corresponding path program 1 times [2022-11-20 10:30:40,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:40,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909838492] [2022-11-20 10:30:40,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:40,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 10:30:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 10:30:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:30:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 10:30:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:30:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:30:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:30:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 10:30:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:30:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 10:30:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,240 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:30:40,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:40,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909838492] [2022-11-20 10:30:40,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909838492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:40,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:40,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:40,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191203588] [2022-11-20 10:30:40,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:40,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:40,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:40,243 INFO L87 Difference]: Start difference. First operand 1345 states and 2260 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:30:42,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:42,717 INFO L93 Difference]: Finished difference Result 3438 states and 5857 transitions. [2022-11-20 10:30:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:42,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-11-20 10:30:42,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:42,730 INFO L225 Difference]: With dead ends: 3438 [2022-11-20 10:30:42,730 INFO L226 Difference]: Without dead ends: 2224 [2022-11-20 10:30:42,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:42,735 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1496 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:42,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1072 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:30:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-11-20 10:30:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2022. [2022-11-20 10:30:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1635 states have (on average 1.636085626911315) internal successors, (2675), 1643 states have internal predecessors, (2675), 357 states have call successors, (357), 25 states have call predecessors, (357), 29 states have return successors, (388), 355 states have call predecessors, (388), 356 states have call successors, (388) [2022-11-20 10:30:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 3420 transitions. [2022-11-20 10:30:42,981 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 3420 transitions. Word has length 144 [2022-11-20 10:30:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:42,982 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 3420 transitions. [2022-11-20 10:30:42,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:30:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 3420 transitions. [2022-11-20 10:30:42,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-20 10:30:42,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:42,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:42,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:30:42,996 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:42,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -418139245, now seen corresponding path program 1 times [2022-11-20 10:30:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:42,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597820845] [2022-11-20 10:30:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 10:30:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 10:30:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 10:30:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 10:30:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 10:30:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 10:30:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:30:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 10:30:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:30:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 10:30:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 10:30:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 10:30:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 10:30:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 10:30:43,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:43,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597820845] [2022-11-20 10:30:43,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597820845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:43,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:43,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:43,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559288624] [2022-11-20 10:30:43,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:43,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:43,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:43,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:43,148 INFO L87 Difference]: Start difference. First operand 2022 states and 3420 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:45,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:45,708 INFO L93 Difference]: Finished difference Result 5023 states and 8636 transitions. [2022-11-20 10:30:45,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:45,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2022-11-20 10:30:45,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:45,726 INFO L225 Difference]: With dead ends: 5023 [2022-11-20 10:30:45,726 INFO L226 Difference]: Without dead ends: 3267 [2022-11-20 10:30:45,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:45,733 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1490 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:45,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1043 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:30:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-11-20 10:30:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3065. [2022-11-20 10:30:46,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 2516 states have (on average 1.6426868044515104) internal successors, (4133), 2524 states have internal predecessors, (4133), 519 states have call successors, (519), 25 states have call predecessors, (519), 29 states have return successors, (566), 517 states have call predecessors, (566), 518 states have call successors, (566) [2022-11-20 10:30:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 5218 transitions. [2022-11-20 10:30:46,135 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 5218 transitions. Word has length 164 [2022-11-20 10:30:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:46,136 INFO L495 AbstractCegarLoop]: Abstraction has 3065 states and 5218 transitions. [2022-11-20 10:30:46,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 5218 transitions. [2022-11-20 10:30:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 10:30:46,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:46,154 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:46,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:30:46,155 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:46,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1426222563, now seen corresponding path program 1 times [2022-11-20 10:30:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:46,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877265189] [2022-11-20 10:30:46,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 10:30:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:30:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 10:30:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 10:30:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 10:30:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:30:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 10:30:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:30:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 10:30:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 10:30:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 10:30:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 10:30:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 10:30:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 10:30:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:46,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877265189] [2022-11-20 10:30:46,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877265189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:46,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:46,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056515695] [2022-11-20 10:30:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:46,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:46,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:46,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:46,326 INFO L87 Difference]: Start difference. First operand 3065 states and 5218 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:49,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:49,077 INFO L93 Difference]: Finished difference Result 7537 states and 13051 transitions. [2022-11-20 10:30:49,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:49,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2022-11-20 10:30:49,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:49,102 INFO L225 Difference]: With dead ends: 7537 [2022-11-20 10:30:49,102 INFO L226 Difference]: Without dead ends: 4957 [2022-11-20 10:30:49,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:49,113 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1474 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:49,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1043 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:30:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2022-11-20 10:30:49,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 4755. [2022-11-20 10:30:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4755 states, 3961 states have (on average 1.647311285029033) internal successors, (6525), 3969 states have internal predecessors, (6525), 764 states have call successors, (764), 25 states have call predecessors, (764), 29 states have return successors, (837), 762 states have call predecessors, (837), 763 states have call successors, (837) [2022-11-20 10:30:49,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4755 states to 4755 states and 8126 transitions. [2022-11-20 10:30:49,645 INFO L78 Accepts]: Start accepts. Automaton has 4755 states and 8126 transitions. Word has length 165 [2022-11-20 10:30:49,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:49,645 INFO L495 AbstractCegarLoop]: Abstraction has 4755 states and 8126 transitions. [2022-11-20 10:30:49,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:49,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4755 states and 8126 transitions. [2022-11-20 10:30:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 10:30:49,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:49,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:49,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:30:49,667 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:49,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:49,668 INFO L85 PathProgramCache]: Analyzing trace with hash 447078135, now seen corresponding path program 1 times [2022-11-20 10:30:49,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:49,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43541926] [2022-11-20 10:30:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:49,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 10:30:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 10:30:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 10:30:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:30:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:30:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 10:30:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 10:30:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:30:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 10:30:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 10:30:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 10:30:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:30:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 10:30:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:49,815 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 10:30:49,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:49,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43541926] [2022-11-20 10:30:49,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43541926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:49,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:49,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:49,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306054456] [2022-11-20 10:30:49,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:49,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:49,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:49,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:49,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:49,819 INFO L87 Difference]: Start difference. First operand 4755 states and 8126 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:52,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:52,675 INFO L93 Difference]: Finished difference Result 11738 states and 20428 transitions. [2022-11-20 10:30:52,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:52,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2022-11-20 10:30:52,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:52,718 INFO L225 Difference]: With dead ends: 11738 [2022-11-20 10:30:52,719 INFO L226 Difference]: Without dead ends: 7800 [2022-11-20 10:30:52,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:52,732 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1474 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:52,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1079 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:30:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7800 states. [2022-11-20 10:30:53,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7800 to 7598. [2022-11-20 10:30:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7598 states, 6311 states have (on average 1.6453810806528284) internal successors, (10384), 6319 states have internal predecessors, (10384), 1257 states have call successors, (1257), 25 states have call predecessors, (1257), 29 states have return successors, (1374), 1255 states have call predecessors, (1374), 1256 states have call successors, (1374) [2022-11-20 10:30:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 13015 transitions. [2022-11-20 10:30:53,778 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 13015 transitions. Word has length 166 [2022-11-20 10:30:53,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:53,778 INFO L495 AbstractCegarLoop]: Abstraction has 7598 states and 13015 transitions. [2022-11-20 10:30:53,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 13015 transitions. [2022-11-20 10:30:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 10:30:53,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:53,806 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:53,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:30:53,807 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1579027841, now seen corresponding path program 1 times [2022-11-20 10:30:53,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:53,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735151729] [2022-11-20 10:30:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:53,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 10:30:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 10:30:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 10:30:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:30:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:30:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 10:30:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 10:30:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 10:30:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 10:30:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 10:30:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:30:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 10:30:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 10:30:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 10:30:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:53,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735151729] [2022-11-20 10:30:53,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735151729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:53,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:53,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:53,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70569452] [2022-11-20 10:30:53,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:53,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:53,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:53,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:53,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:53,956 INFO L87 Difference]: Start difference. First operand 7598 states and 13015 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:57,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:57,326 INFO L93 Difference]: Finished difference Result 19353 states and 33704 transitions. [2022-11-20 10:30:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:57,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2022-11-20 10:30:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:57,376 INFO L225 Difference]: With dead ends: 19353 [2022-11-20 10:30:57,376 INFO L226 Difference]: Without dead ends: 12974 [2022-11-20 10:30:57,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:57,394 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1480 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:57,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1042 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [701 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:30:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12974 states. [2022-11-20 10:30:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12974 to 12772. [2022-11-20 10:30:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12772 states, 10663 states have (on average 1.6455969239426054) internal successors, (17547), 10671 states have internal predecessors, (17547), 2079 states have call successors, (2079), 25 states have call predecessors, (2079), 29 states have return successors, (2274), 2077 states have call predecessors, (2274), 2078 states have call successors, (2274) [2022-11-20 10:30:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12772 states to 12772 states and 21900 transitions. [2022-11-20 10:30:58,801 INFO L78 Accepts]: Start accepts. Automaton has 12772 states and 21900 transitions. Word has length 167 [2022-11-20 10:30:58,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:58,802 INFO L495 AbstractCegarLoop]: Abstraction has 12772 states and 21900 transitions. [2022-11-20 10:30:58,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:30:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 12772 states and 21900 transitions. [2022-11-20 10:30:58,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 10:30:58,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:58,848 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:58,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:30:58,848 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:30:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1194644371, now seen corresponding path program 1 times [2022-11-20 10:30:58,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:58,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343562330] [2022-11-20 10:30:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:58,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:30:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:30:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:30:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:30:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:30:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:30:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 10:30:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 10:30:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 10:30:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 10:30:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:30:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 10:30:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:30:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:30:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:30:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 10:30:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:30:58,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:58,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343562330] [2022-11-20 10:30:58,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343562330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:58,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:58,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:30:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39003158] [2022-11-20 10:30:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:58,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:58,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:58,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:58,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:58,984 INFO L87 Difference]: Start difference. First operand 12772 states and 21900 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:31:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:31:03,291 INFO L93 Difference]: Finished difference Result 30836 states and 53404 transitions. [2022-11-20 10:31:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:31:03,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2022-11-20 10:31:03,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:31:03,371 INFO L225 Difference]: With dead ends: 30836 [2022-11-20 10:31:03,371 INFO L226 Difference]: Without dead ends: 20287 [2022-11-20 10:31:03,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:31:03,401 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1466 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:31:03,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1020 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:31:03,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20287 states. [2022-11-20 10:31:05,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20287 to 20085. [2022-11-20 10:31:05,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20085 states, 16773 states have (on average 1.6212365110594407) internal successors, (27193), 16781 states have internal predecessors, (27193), 3282 states have call successors, (3282), 25 states have call predecessors, (3282), 29 states have return successors, (3621), 3280 states have call predecessors, (3621), 3281 states have call successors, (3621) [2022-11-20 10:31:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20085 states to 20085 states and 34096 transitions. [2022-11-20 10:31:05,336 INFO L78 Accepts]: Start accepts. Automaton has 20085 states and 34096 transitions. Word has length 149 [2022-11-20 10:31:05,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:31:05,337 INFO L495 AbstractCegarLoop]: Abstraction has 20085 states and 34096 transitions. [2022-11-20 10:31:05,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:31:05,337 INFO L276 IsEmpty]: Start isEmpty. Operand 20085 states and 34096 transitions. [2022-11-20 10:31:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-20 10:31:05,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:31:05,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:31:05,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 10:31:05,377 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:31:05,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:31:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1068301886, now seen corresponding path program 1 times [2022-11-20 10:31:05,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:31:05,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616067592] [2022-11-20 10:31:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:31:05,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:31:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:31:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:31:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:31:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:31:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:31:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:31:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 10:31:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 10:31:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:31:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 10:31:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 10:31:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:31:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 10:31:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:31:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:31:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 10:31:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 10:31:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 10:31:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-20 10:31:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 10:31:05,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:31:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616067592] [2022-11-20 10:31:05,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616067592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:31:05,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:31:05,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:31:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484185102] [2022-11-20 10:31:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:31:05,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:31:05,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:31:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:31:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:31:05,534 INFO L87 Difference]: Start difference. First operand 20085 states and 34096 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:31:11,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:31:11,419 INFO L93 Difference]: Finished difference Result 53278 states and 91938 transitions. [2022-11-20 10:31:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:31:11,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2022-11-20 10:31:11,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:31:11,594 INFO L225 Difference]: With dead ends: 53278 [2022-11-20 10:31:11,595 INFO L226 Difference]: Without dead ends: 36093 [2022-11-20 10:31:11,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:31:11,640 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1473 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:31:11,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1045 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:31:11,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36093 states. [2022-11-20 10:31:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36093 to 35891. [2022-11-20 10:31:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35891 states, 30129 states have (on average 1.6182083706727737) internal successors, (48755), 30137 states have internal predecessors, (48755), 5732 states have call successors, (5732), 25 states have call predecessors, (5732), 29 states have return successors, (6345), 5730 states have call predecessors, (6345), 5731 states have call successors, (6345) [2022-11-20 10:31:15,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35891 states to 35891 states and 60832 transitions. [2022-11-20 10:31:15,549 INFO L78 Accepts]: Start accepts. Automaton has 35891 states and 60832 transitions. Word has length 169 [2022-11-20 10:31:15,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:31:15,549 INFO L495 AbstractCegarLoop]: Abstraction has 35891 states and 60832 transitions. [2022-11-20 10:31:15,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:31:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 35891 states and 60832 transitions. [2022-11-20 10:31:15,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-20 10:31:15,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:31:15,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:31:15,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 10:31:15,602 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:31:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:31:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash -992614041, now seen corresponding path program 1 times [2022-11-20 10:31:15,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:31:15,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652829016] [2022-11-20 10:31:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:31:15,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:31:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:31:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:31:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:31:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:31:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:31:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:31:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:31:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:31:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 10:31:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 10:31:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:31:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:31:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 10:31:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 10:31:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 10:31:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 10:31:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:31:15,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:31:15,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652829016] [2022-11-20 10:31:15,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652829016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:31:15,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:31:15,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:31:15,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883472191] [2022-11-20 10:31:15,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:31:15,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:31:15,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:31:15,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:31:15,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:31:15,725 INFO L87 Difference]: Start difference. First operand 35891 states and 60832 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:31:24,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:31:24,296 INFO L93 Difference]: Finished difference Result 98125 states and 168497 transitions. [2022-11-20 10:31:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:31:24,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2022-11-20 10:31:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:31:24,537 INFO L225 Difference]: With dead ends: 98125 [2022-11-20 10:31:24,538 INFO L226 Difference]: Without dead ends: 66090 [2022-11-20 10:31:24,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:31:24,847 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1458 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:31:24,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1054 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 10:31:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66090 states. [2022-11-20 10:31:31,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66090 to 65888. [2022-11-20 10:31:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65888 states, 55613 states have (on average 1.6141549637674644) internal successors, (89768), 55621 states have internal predecessors, (89768), 10245 states have call successors, (10245), 25 states have call predecessors, (10245), 29 states have return successors, (11390), 10243 states have call predecessors, (11390), 10244 states have call successors, (11390) [2022-11-20 10:31:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65888 states to 65888 states and 111403 transitions. [2022-11-20 10:31:31,346 INFO L78 Accepts]: Start accepts. Automaton has 65888 states and 111403 transitions. Word has length 151 [2022-11-20 10:31:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:31:31,346 INFO L495 AbstractCegarLoop]: Abstraction has 65888 states and 111403 transitions. [2022-11-20 10:31:31,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:31:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 65888 states and 111403 transitions. [2022-11-20 10:31:31,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 10:31:31,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:31:31,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:31:31,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 10:31:31,419 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:31:31,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:31:31,419 INFO L85 PathProgramCache]: Analyzing trace with hash 177741048, now seen corresponding path program 1 times [2022-11-20 10:31:31,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:31:31,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344400951] [2022-11-20 10:31:31,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:31:31,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:31:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:31:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:31:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:31:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:31:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:31:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 10:31:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 10:31:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 10:31:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 10:31:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:31:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 10:31:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:31:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 10:31:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 10:31:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 10:31:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 10:31:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 10:31:31,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:31:31,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344400951] [2022-11-20 10:31:31,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344400951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:31:31,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:31:31,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:31:31,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704175239] [2022-11-20 10:31:31,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:31:31,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:31:31,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:31:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:31:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:31:31,547 INFO L87 Difference]: Start difference. First operand 65888 states and 111403 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)