./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc --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 4aad45d78970842948dd8f2d4a23b330a7c7a053ef8846b1af27e637f96c3ae7 --- 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-5e519f3 [2022-11-02 20:56:54,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:56:54,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:56:54,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:56:54,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:56:54,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:56:54,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:56:54,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:56:54,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:56:54,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:56:54,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:56:54,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:56:54,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:56:54,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:56:54,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:56:54,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:56:54,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:56:54,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:56:54,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:56:54,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:56:54,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:56:54,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:56:54,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:56:54,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:56:54,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:56:54,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:56:54,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:56:54,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:56:54,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:56:54,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:56:54,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:56:54,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:56:54,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:56:54,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:56:54,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:56:54,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:56:54,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:56:54,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:56:54,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:56:54,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:56:54,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:56:54,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:56:54,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:56:54,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:56:54,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:56:54,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:56:54,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:56:54,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:56:54,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:56:54,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:56:54,761 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:56:54,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:56:54,763 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:56:54,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:56:54,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:56:54,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:56:54,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:56:54,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:56:54,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:56:54,765 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:56:54,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:56:54,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:56:54,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:56:54,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:56:54,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:56:54,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:56:54,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:54,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:56:54,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:56:54,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:56:54,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:56:54,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:56:54,769 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:56:54,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:56:54,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:56:54,770 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_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aad45d78970842948dd8f2d4a23b330a7c7a053ef8846b1af27e637f96c3ae7 [2022-11-02 20:56:55,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:56:55,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:56:55,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:56:55,058 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:56:55,060 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:56:55,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2022-11-02 20:56:55,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/data/22737db84/a550c40dd5e6479dbefab4be6d422192/FLAGed892906e [2022-11-02 20:56:55,752 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:56:55,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2022-11-02 20:56:55,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/data/22737db84/a550c40dd5e6479dbefab4be6d422192/FLAGed892906e [2022-11-02 20:56:55,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/data/22737db84/a550c40dd5e6479dbefab4be6d422192 [2022-11-02 20:56:55,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:56:55,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:56:55,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:55,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:56:55,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:56:55,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:55" (1/1) ... [2022-11-02 20:56:55,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e45a5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:55, skipping insertion in model container [2022-11-02 20:56:55,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:55" (1/1) ... [2022-11-02 20:56:55,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:56:56,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:56:56,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63576,63589] [2022-11-02 20:56:56,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:56,657 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:56:56,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63576,63589] [2022-11-02 20:56:56,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:56,847 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:56:56,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56 WrapperNode [2022-11-02 20:56:56,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:56,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:56,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:56:56,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:56:56,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:56,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:56,965 INFO L138 Inliner]: procedures = 130, calls = 218, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1060 [2022-11-02 20:56:56,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:56,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:56:56,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:56:56,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:56:56,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:56,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:56,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:56,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:56,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:57,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:57,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:57,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:57,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:56:57,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:56:57,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:56:57,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:56:57,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (1/1) ... [2022-11-02 20:56:57,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:57,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:57,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:56:57,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:56:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-02 20:56:57,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-02 20:56:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-02 20:56:57,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-02 20:56:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-02 20:56:57,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-02 20:56:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-11-02 20:56:57,139 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-11-02 20:56:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-02 20:56:57,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-02 20:56:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-02 20:56:57,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-02 20:56:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-02 20:56:57,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-02 20:56:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-02 20:56:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-02 20:56:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-02 20:56:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-02 20:56:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-02 20:56:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-02 20:56:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-02 20:56:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-02 20:56:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-02 20:56:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-02 20:56:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-02 20:56:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:56:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-02 20:56:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-02 20:56:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-02 20:56:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-02 20:56:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-02 20:56:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-02 20:56:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-02 20:56:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-02 20:56:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-02 20:56:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-02 20:56:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-02 20:56:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-02 20:56:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-02 20:56:57,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-02 20:56:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-02 20:56:57,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-02 20:56:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:56:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-02 20:56:57,143 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-02 20:56:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-02 20:56:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-02 20:56:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:56:57,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:56:57,363 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:56:57,365 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:56:58,367 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:56:58,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:56:58,384 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:56:58,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:58 BoogieIcfgContainer [2022-11-02 20:56:58,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:56:58,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:56:58,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:56:58,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:56:58,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:56:55" (1/3) ... [2022-11-02 20:56:58,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3908ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:58, skipping insertion in model container [2022-11-02 20:56:58,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:56" (2/3) ... [2022-11-02 20:56:58,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3908ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:58, skipping insertion in model container [2022-11-02 20:56:58,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:58" (3/3) ... [2022-11-02 20:56:58,401 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2022-11-02 20:56:58,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:56:58,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:56:58,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:56:58,492 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;@fa36c23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:56:58,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:56:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 386 states, 306 states have (on average 1.565359477124183) internal successors, (479), 309 states have internal predecessors, (479), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-02 20:56:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-02 20:56:58,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:58,519 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:56:58,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:58,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:58,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1457964568, now seen corresponding path program 1 times [2022-11-02 20:56:58,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:58,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624700808] [2022-11-02 20:56:58,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:58,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:56:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:56:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:56:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:56:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:56:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:56:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:56:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:56:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:56:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:56:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:56:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:56:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:56:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-02 20:56:59,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:59,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624700808] [2022-11-02 20:56:59,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624700808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:56:59,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205241493] [2022-11-02 20:56:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:59,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:59,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:59,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:59,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:56:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:59,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:56:59,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-02 20:56:59,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:59,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205241493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:59,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:56:59,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-02 20:56:59,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318099319] [2022-11-02 20:56:59,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:59,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:56:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:56:59,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:56:59,838 INFO L87 Difference]: Start difference. First operand has 386 states, 306 states have (on average 1.565359477124183) internal successors, (479), 309 states have internal predecessors, (479), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:56:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:59,904 INFO L93 Difference]: Finished difference Result 579 states and 872 transitions. [2022-11-02 20:56:59,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:56:59,906 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2022-11-02 20:56:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:59,921 INFO L225 Difference]: With dead ends: 579 [2022-11-02 20:56:59,921 INFO L226 Difference]: Without dead ends: 379 [2022-11-02 20:56:59,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:56:59,930 INFO L413 NwaCegarLoop]: 587 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, 587 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 [2022-11-02 20:56:59,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-02 20:57:00,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-11-02 20:57:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 300 states have (on average 1.56) internal successors, (468), 302 states have internal predecessors, (468), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-11-02 20:57:00,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 579 transitions. [2022-11-02 20:57:00,008 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 579 transitions. Word has length 101 [2022-11-02 20:57:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:00,009 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 579 transitions. [2022-11-02 20:57:00,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 579 transitions. [2022-11-02 20:57:00,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-02 20:57:00,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:00,016 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:57:00,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:00,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-02 20:57:00,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1896002271, now seen corresponding path program 1 times [2022-11-02 20:57:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:00,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764264684] [2022-11-02 20:57:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:00,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:57:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-02 20:57:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 20:57:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:57:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 20:57:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 20:57:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:57:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-02 20:57:00,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:00,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764264684] [2022-11-02 20:57:00,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764264684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:00,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879505086] [2022-11-02 20:57:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:00,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:00,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:00,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:00,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:57:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:57:00,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-02 20:57:00,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:00,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879505086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:00,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:00,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-02 20:57:00,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129987472] [2022-11-02 20:57:00,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:00,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:00,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:00,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:00,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:00,996 INFO L87 Difference]: Start difference. First operand 379 states and 579 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:01,074 INFO L93 Difference]: Finished difference Result 569 states and 850 transitions. [2022-11-02 20:57:01,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:01,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-11-02 20:57:01,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:01,093 INFO L225 Difference]: With dead ends: 569 [2022-11-02 20:57:01,093 INFO L226 Difference]: Without dead ends: 382 [2022-11-02 20:57:01,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:01,100 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 1 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1152 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 [2022-11-02 20:57:01,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1152 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-02 20:57:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2022-11-02 20:57:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 302 states have (on average 1.5562913907284768) internal successors, (470), 304 states have internal predecessors, (470), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-11-02 20:57:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 581 transitions. [2022-11-02 20:57:01,164 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 581 transitions. Word has length 102 [2022-11-02 20:57:01,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:01,166 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 581 transitions. [2022-11-02 20:57:01,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:01,167 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 581 transitions. [2022-11-02 20:57:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-02 20:57:01,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:01,181 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] [2022-11-02 20:57:01,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-02 20:57:01,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:01,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:01,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2026309608, now seen corresponding path program 1 times [2022-11-02 20:57:01,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001728484] [2022-11-02 20:57:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-02 20:57:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:57:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:57:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:57:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 20:57:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:57:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:57:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 20:57:01,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:01,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001728484] [2022-11-02 20:57:01,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001728484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:01,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407383634] [2022-11-02 20:57:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:01,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:01,758 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:01,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:57:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:57:02,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-02 20:57:02,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:02,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407383634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:02,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:02,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-02 20:57:02,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712714149] [2022-11-02 20:57:02,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:02,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:02,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:02,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:02,111 INFO L87 Difference]: Start difference. First operand 381 states and 581 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:02,149 INFO L93 Difference]: Finished difference Result 810 states and 1254 transitions. [2022-11-02 20:57:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-11-02 20:57:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:02,153 INFO L225 Difference]: With dead ends: 810 [2022-11-02 20:57:02,153 INFO L226 Difference]: Without dead ends: 456 [2022-11-02 20:57:02,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:02,156 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 134 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1132 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 [2022-11-02 20:57:02,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:02,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-02 20:57:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 448. [2022-11-02 20:57:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 355 states have (on average 1.5746478873239436) internal successors, (559), 357 states have internal predecessors, (559), 70 states have call successors, (70), 22 states have call predecessors, (70), 22 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-02 20:57:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 698 transitions. [2022-11-02 20:57:02,184 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 698 transitions. Word has length 108 [2022-11-02 20:57:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:02,184 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 698 transitions. [2022-11-02 20:57:02,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 698 transitions. [2022-11-02 20:57:02,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-02 20:57:02,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:02,187 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] [2022-11-02 20:57:02,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:02,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:02,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:02,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 271379103, now seen corresponding path program 1 times [2022-11-02 20:57:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:02,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258853516] [2022-11-02 20:57:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:02,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 20:57:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 20:57:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:57:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:57:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:57:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:57:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 20:57:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 20:57:02,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:02,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258853516] [2022-11-02 20:57:02,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258853516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:02,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667183123] [2022-11-02 20:57:02,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:02,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:02,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:02,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:02,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:57:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:57:03,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-02 20:57:03,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:03,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667183123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:03,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:03,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-02 20:57:03,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983889369] [2022-11-02 20:57:03,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:03,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:57:03,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:03,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:57:03,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:57:03,171 INFO L87 Difference]: Start difference. First operand 448 states and 698 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:03,273 INFO L93 Difference]: Finished difference Result 887 states and 1386 transitions. [2022-11-02 20:57:03,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:57:03,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2022-11-02 20:57:03,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:03,278 INFO L225 Difference]: With dead ends: 887 [2022-11-02 20:57:03,279 INFO L226 Difference]: Without dead ends: 450 [2022-11-02 20:57:03,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:03,286 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 152 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2105 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 [2022-11-02 20:57:03,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2105 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-02 20:57:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-11-02 20:57:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 356 states have (on average 1.5730337078651686) internal successors, (560), 359 states have internal predecessors, (560), 70 states have call successors, (70), 22 states have call predecessors, (70), 23 states have return successors, (71), 68 states have call predecessors, (71), 69 states have call successors, (71) [2022-11-02 20:57:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 701 transitions. [2022-11-02 20:57:03,329 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 701 transitions. Word has length 109 [2022-11-02 20:57:03,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:03,329 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 701 transitions. [2022-11-02 20:57:03,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 701 transitions. [2022-11-02 20:57:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-02 20:57:03,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:03,337 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:57:03,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:03,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:03,555 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash -467642792, now seen corresponding path program 1 times [2022-11-02 20:57:03,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:03,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304832412] [2022-11-02 20:57:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:03,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-02 20:57:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-02 20:57:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:57:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:57:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:57:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:57:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:57:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-02 20:57:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:57:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-02 20:57:03,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304832412] [2022-11-02 20:57:03,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304832412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698700590] [2022-11-02 20:57:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:03,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:03,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:03,917 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:03,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:57:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:57:04,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-02 20:57:04,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:04,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698700590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:04,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:04,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-02 20:57:04,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913317565] [2022-11-02 20:57:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:04,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:57:04,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:04,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:57:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:57:04,303 INFO L87 Difference]: Start difference. First operand 450 states and 701 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:04,386 INFO L93 Difference]: Finished difference Result 889 states and 1391 transitions. [2022-11-02 20:57:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:57:04,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2022-11-02 20:57:04,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:04,390 INFO L225 Difference]: With dead ends: 889 [2022-11-02 20:57:04,390 INFO L226 Difference]: Without dead ends: 452 [2022-11-02 20:57:04,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:57:04,393 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 151 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2094 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 [2022-11-02 20:57:04,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2094 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-02 20:57:04,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2022-11-02 20:57:04,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 357 states have (on average 1.5714285714285714) internal successors, (561), 361 states have internal predecessors, (561), 70 states have call successors, (70), 22 states have call predecessors, (70), 24 states have return successors, (76), 68 states have call predecessors, (76), 69 states have call successors, (76) [2022-11-02 20:57:04,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 707 transitions. [2022-11-02 20:57:04,417 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 707 transitions. Word has length 110 [2022-11-02 20:57:04,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:04,417 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 707 transitions. [2022-11-02 20:57:04,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:04,418 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 707 transitions. [2022-11-02 20:57:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-02 20:57:04,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:04,420 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] [2022-11-02 20:57:04,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:04,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:04,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:04,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 423544596, now seen corresponding path program 1 times [2022-11-02 20:57:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:04,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614930575] [2022-11-02 20:57:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:57:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 20:57:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 20:57:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 20:57:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-02 20:57:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 20:57:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:57:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:57:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 20:57:04,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:04,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614930575] [2022-11-02 20:57:04,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614930575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:04,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:04,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:57:04,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085790963] [2022-11-02 20:57:04,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:04,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:57:04,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:57:04,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:57:04,896 INFO L87 Difference]: Start difference. First operand 452 states and 707 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:07,760 INFO L93 Difference]: Finished difference Result 1059 states and 1677 transitions. [2022-11-02 20:57:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:57:07,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2022-11-02 20:57:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:07,765 INFO L225 Difference]: With dead ends: 1059 [2022-11-02 20:57:07,765 INFO L226 Difference]: Without dead ends: 630 [2022-11-02 20:57:07,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:57:07,768 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 1420 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:07,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1696 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-02 20:57:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-02 20:57:07,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 452. [2022-11-02 20:57:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 357 states have (on average 1.5714285714285714) internal successors, (561), 361 states have internal predecessors, (561), 70 states have call successors, (70), 22 states have call predecessors, (70), 24 states have return successors, (75), 68 states have call predecessors, (75), 69 states have call successors, (75) [2022-11-02 20:57:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 706 transitions. [2022-11-02 20:57:07,827 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 706 transitions. Word has length 111 [2022-11-02 20:57:07,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:07,827 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 706 transitions. [2022-11-02 20:57:07,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 706 transitions. [2022-11-02 20:57:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-02 20:57:07,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:07,830 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] [2022-11-02 20:57:07,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:57:07,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:07,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:07,831 INFO L85 PathProgramCache]: Analyzing trace with hash -834371797, now seen corresponding path program 2 times [2022-11-02 20:57:07,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:07,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906478063] [2022-11-02 20:57:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:07,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:07,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-02 20:57:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:57:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 20:57:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 20:57:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:57:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:57:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:57:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:57:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-02 20:57:08,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:08,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906478063] [2022-11-02 20:57:08,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906478063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:08,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:08,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:57:08,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672450198] [2022-11-02 20:57:08,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:08,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:57:08,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:08,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:57:08,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:57:08,074 INFO L87 Difference]: Start difference. First operand 452 states and 706 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:10,697 INFO L93 Difference]: Finished difference Result 1061 states and 1680 transitions. [2022-11-02 20:57:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:57:10,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2022-11-02 20:57:10,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:10,704 INFO L225 Difference]: With dead ends: 1061 [2022-11-02 20:57:10,705 INFO L226 Difference]: Without dead ends: 632 [2022-11-02 20:57:10,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:57:10,710 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 1413 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:10,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 1699 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-02 20:57:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-11-02 20:57:10,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 454. [2022-11-02 20:57:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 358 states have (on average 1.5698324022346368) internal successors, (562), 363 states have internal predecessors, (562), 70 states have call successors, (70), 22 states have call predecessors, (70), 25 states have return successors, (77), 68 states have call predecessors, (77), 69 states have call successors, (77) [2022-11-02 20:57:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 709 transitions. [2022-11-02 20:57:10,781 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 709 transitions. Word has length 112 [2022-11-02 20:57:10,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:10,781 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 709 transitions. [2022-11-02 20:57:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 709 transitions. [2022-11-02 20:57:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-02 20:57:10,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:10,785 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] [2022-11-02 20:57:10,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:57:10,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1107410311, now seen corresponding path program 1 times [2022-11-02 20:57:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:10,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583535270] [2022-11-02 20:57:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:10,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:57:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-02 20:57:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 20:57:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 20:57:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:57:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:57:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 20:57:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-02 20:57:11,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:11,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583535270] [2022-11-02 20:57:11,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583535270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:11,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:11,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:57:11,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302487717] [2022-11-02 20:57:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:11,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:57:11,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:11,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:57:11,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:57:11,092 INFO L87 Difference]: Start difference. First operand 454 states and 709 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:57:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:14,615 INFO L93 Difference]: Finished difference Result 1059 states and 1675 transitions. [2022-11-02 20:57:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:57:14,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 113 [2022-11-02 20:57:14,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:14,620 INFO L225 Difference]: With dead ends: 1059 [2022-11-02 20:57:14,620 INFO L226 Difference]: Without dead ends: 632 [2022-11-02 20:57:14,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:57:14,623 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 1556 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4367 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 4367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:14,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2054 Invalid, 4950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 4367 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-02 20:57:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-11-02 20:57:14,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 454. [2022-11-02 20:57:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 358 states have (on average 1.5698324022346368) internal successors, (562), 363 states have internal predecessors, (562), 70 states have call successors, (70), 22 states have call predecessors, (70), 25 states have return successors, (76), 68 states have call predecessors, (76), 69 states have call successors, (76) [2022-11-02 20:57:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 708 transitions. [2022-11-02 20:57:14,673 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 708 transitions. Word has length 113 [2022-11-02 20:57:14,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:14,673 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 708 transitions. [2022-11-02 20:57:14,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:57:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 708 transitions. [2022-11-02 20:57:14,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-02 20:57:14,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:14,677 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] [2022-11-02 20:57:14,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:57:14,678 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:14,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:14,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1255533047, now seen corresponding path program 2 times [2022-11-02 20:57:14,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:14,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239567035] [2022-11-02 20:57:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 20:57:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:57:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:57:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:57:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:57:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:57:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-02 20:57:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-02 20:57:14,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:14,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239567035] [2022-11-02 20:57:14,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239567035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:14,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:14,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:57:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908266429] [2022-11-02 20:57:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:14,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:57:14,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:57:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:57:14,984 INFO L87 Difference]: Start difference. First operand 454 states and 708 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:57:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:18,802 INFO L93 Difference]: Finished difference Result 1061 states and 1681 transitions. [2022-11-02 20:57:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:57:18,803 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2022-11-02 20:57:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:18,808 INFO L225 Difference]: With dead ends: 1061 [2022-11-02 20:57:18,809 INFO L226 Difference]: Without dead ends: 634 [2022-11-02 20:57:18,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:57:18,812 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 1547 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4414 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 4992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 4414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:18,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 2060 Invalid, 4992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 4414 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-02 20:57:18,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-11-02 20:57:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 456. [2022-11-02 20:57:18,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 359 states have (on average 1.5682451253481895) internal successors, (563), 365 states have internal predecessors, (563), 70 states have call successors, (70), 22 states have call predecessors, (70), 26 states have return successors, (81), 68 states have call predecessors, (81), 69 states have call successors, (81) [2022-11-02 20:57:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 714 transitions. [2022-11-02 20:57:18,896 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 714 transitions. Word has length 114 [2022-11-02 20:57:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:18,896 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 714 transitions. [2022-11-02 20:57:18,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:57:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 714 transitions. [2022-11-02 20:57:18,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-02 20:57:18,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:18,900 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] [2022-11-02 20:57:18,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:57:18,901 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash -926043522, now seen corresponding path program 1 times [2022-11-02 20:57:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:18,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193193276] [2022-11-02 20:57:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:57:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:57:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:57:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 20:57:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:57:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:57:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:57:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:19,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:19,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193193276] [2022-11-02 20:57:19,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193193276] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:19,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845730180] [2022-11-02 20:57:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:19,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:19,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:19,111 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:19,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:57:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:19,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:57:19,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:19,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:57:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:19,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845730180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:57:19,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:57:19,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-02 20:57:19,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018006376] [2022-11-02 20:57:19,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:57:19,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:57:19,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:57:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:57:19,585 INFO L87 Difference]: Start difference. First operand 456 states and 714 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:57:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:23,073 INFO L93 Difference]: Finished difference Result 1263 states and 2074 transitions. [2022-11-02 20:57:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:57:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2022-11-02 20:57:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:23,081 INFO L225 Difference]: With dead ends: 1263 [2022-11-02 20:57:23,082 INFO L226 Difference]: Without dead ends: 1076 [2022-11-02 20:57:23,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:57:23,084 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 1769 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 2943 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 2943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:23,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 2434 Invalid, 3634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 2943 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-02 20:57:23,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-02 20:57:23,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 874. [2022-11-02 20:57:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 698 states have (on average 1.6275071633237823) internal successors, (1136), 704 states have internal predecessors, (1136), 149 states have call successors, (149), 22 states have call predecessors, (149), 26 states have return successors, (170), 147 states have call predecessors, (170), 148 states have call successors, (170) [2022-11-02 20:57:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1455 transitions. [2022-11-02 20:57:23,175 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1455 transitions. Word has length 115 [2022-11-02 20:57:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:23,176 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1455 transitions. [2022-11-02 20:57:23,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:57:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1455 transitions. [2022-11-02 20:57:23,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-02 20:57:23,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:23,181 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] [2022-11-02 20:57:23,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:23,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d480fcbe-c5ba-45c2-8823-523995d3bc44/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:23,395 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2115641189, now seen corresponding path program 1 times [2022-11-02 20:57:23,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:23,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369219612] [2022-11-02 20:57:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:23,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 20:57:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 20:57:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 20:57:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:57:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:57:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-02 20:57:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 20:57:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,518 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:23,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:23,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369219612] [2022-11-02 20:57:23,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369219612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:23,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:23,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:23,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576751798] [2022-11-02 20:57:23,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:23,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:23,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:23,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:23,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:23,521 INFO L87 Difference]: Start difference. First operand 874 states and 1455 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:25,735 INFO L93 Difference]: Finished difference Result 2281 states and 3875 transitions. [2022-11-02 20:57:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:25,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-11-02 20:57:25,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:25,746 INFO L225 Difference]: With dead ends: 2281 [2022-11-02 20:57:25,746 INFO L226 Difference]: Without dead ends: 1475 [2022-11-02 20:57:25,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:25,751 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 1408 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:25,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 1546 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:57:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2022-11-02 20:57:25,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1289. [2022-11-02 20:57:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1034 states have (on average 1.6402321083172147) internal successors, (1696), 1040 states have internal predecessors, (1696), 228 states have call successors, (228), 22 states have call predecessors, (228), 26 states have return successors, (259), 226 states have call predecessors, (259), 227 states have call successors, (259) [2022-11-02 20:57:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 2183 transitions. [2022-11-02 20:57:25,902 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 2183 transitions. Word has length 121 [2022-11-02 20:57:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:25,903 INFO L495 AbstractCegarLoop]: Abstraction has 1289 states and 2183 transitions. [2022-11-02 20:57:25,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 2183 transitions. [2022-11-02 20:57:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-02 20:57:25,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:25,920 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] [2022-11-02 20:57:25,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:57:25,920 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1259776489, now seen corresponding path program 1 times [2022-11-02 20:57:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:25,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927660809] [2022-11-02 20:57:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:25,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:57:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 20:57:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:57:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 20:57:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 20:57:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:57:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:57:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:26,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:26,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927660809] [2022-11-02 20:57:26,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927660809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:26,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:26,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:26,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062677731] [2022-11-02 20:57:26,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:26,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:26,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:26,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:26,059 INFO L87 Difference]: Start difference. First operand 1289 states and 2183 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:28,181 INFO L93 Difference]: Finished difference Result 3295 states and 5653 transitions. [2022-11-02 20:57:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:28,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2022-11-02 20:57:28,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:28,195 INFO L225 Difference]: With dead ends: 3295 [2022-11-02 20:57:28,195 INFO L226 Difference]: Without dead ends: 2127 [2022-11-02 20:57:28,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:28,201 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 1409 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:28,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 1513 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:57:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2022-11-02 20:57:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1941. [2022-11-02 20:57:28,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1567 states have (on average 1.6483726866624122) internal successors, (2583), 1573 states have internal predecessors, (2583), 347 states have call successors, (347), 22 states have call predecessors, (347), 26 states have return successors, (378), 345 states have call predecessors, (378), 346 states have call successors, (378) [2022-11-02 20:57:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 3308 transitions. [2022-11-02 20:57:28,412 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 3308 transitions. Word has length 122 [2022-11-02 20:57:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:28,413 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 3308 transitions. [2022-11-02 20:57:28,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:28,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 3308 transitions. [2022-11-02 20:57:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-02 20:57:28,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:28,424 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] [2022-11-02 20:57:28,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:57:28,425 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:28,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:28,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1328199485, now seen corresponding path program 1 times [2022-11-02 20:57:28,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:28,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022619643] [2022-11-02 20:57:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:28,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:57:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:57:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 20:57:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:57:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:57:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 20:57:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 20:57:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:28,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:28,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022619643] [2022-11-02 20:57:28,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022619643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:28,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:28,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:28,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492359625] [2022-11-02 20:57:28,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:28,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:28,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:28,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:28,566 INFO L87 Difference]: Start difference. First operand 1941 states and 3308 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:30,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:30,758 INFO L93 Difference]: Finished difference Result 4825 states and 8355 transitions. [2022-11-02 20:57:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:30,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-11-02 20:57:30,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:30,780 INFO L225 Difference]: With dead ends: 4825 [2022-11-02 20:57:30,780 INFO L226 Difference]: Without dead ends: 3130 [2022-11-02 20:57:30,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:30,787 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 1409 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:30,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1511 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:57:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2022-11-02 20:57:31,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2944. [2022-11-02 20:57:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2408 states have (on average 1.6549003322259137) internal successors, (3985), 2414 states have internal predecessors, (3985), 509 states have call successors, (509), 22 states have call predecessors, (509), 26 states have return successors, (556), 507 states have call predecessors, (556), 508 states have call successors, (556) [2022-11-02 20:57:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5050 transitions. [2022-11-02 20:57:31,112 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5050 transitions. Word has length 123 [2022-11-02 20:57:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:31,112 INFO L495 AbstractCegarLoop]: Abstraction has 2944 states and 5050 transitions. [2022-11-02 20:57:31,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5050 transitions. [2022-11-02 20:57:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-02 20:57:31,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:31,127 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] [2022-11-02 20:57:31,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:57:31,128 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:31,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1022817930, now seen corresponding path program 1 times [2022-11-02 20:57:31,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:31,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481593355] [2022-11-02 20:57:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:31,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:57:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:57:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-02 20:57:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:57:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:57:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-02 20:57:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:57:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:31,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:31,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481593355] [2022-11-02 20:57:31,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481593355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:31,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:31,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195423978] [2022-11-02 20:57:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:31,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:31,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:31,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:31,256 INFO L87 Difference]: Start difference. First operand 2944 states and 5050 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:33,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:33,566 INFO L93 Difference]: Finished difference Result 7249 states and 12644 transitions. [2022-11-02 20:57:33,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:33,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-11-02 20:57:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:33,594 INFO L225 Difference]: With dead ends: 7249 [2022-11-02 20:57:33,594 INFO L226 Difference]: Without dead ends: 4755 [2022-11-02 20:57:33,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:33,605 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1401 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:33,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 1515 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:57:33,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2022-11-02 20:57:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 4569. [2022-11-02 20:57:34,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4569 states, 3788 states have (on average 1.6594508975712776) internal successors, (6286), 3794 states have internal predecessors, (6286), 754 states have call successors, (754), 22 states have call predecessors, (754), 26 states have return successors, (827), 752 states have call predecessors, (827), 753 states have call successors, (827) [2022-11-02 20:57:34,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 7867 transitions. [2022-11-02 20:57:34,087 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 7867 transitions. Word has length 124 [2022-11-02 20:57:34,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:34,088 INFO L495 AbstractCegarLoop]: Abstraction has 4569 states and 7867 transitions. [2022-11-02 20:57:34,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:34,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 7867 transitions. [2022-11-02 20:57:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-02 20:57:34,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:34,103 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] [2022-11-02 20:57:34,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:57:34,104 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:34,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:34,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2087014137, now seen corresponding path program 1 times [2022-11-02 20:57:34,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:34,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104057838] [2022-11-02 20:57:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:34,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 20:57:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:57:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-02 20:57:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:57:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:57:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:57:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-02 20:57:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:34,228 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:34,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:34,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104057838] [2022-11-02 20:57:34,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104057838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:34,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:34,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379879694] [2022-11-02 20:57:34,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:34,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:34,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:34,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:34,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:34,231 INFO L87 Difference]: Start difference. First operand 4569 states and 7867 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:36,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:36,595 INFO L93 Difference]: Finished difference Result 11295 states and 19804 transitions. [2022-11-02 20:57:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:36,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2022-11-02 20:57:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:36,659 INFO L225 Difference]: With dead ends: 11295 [2022-11-02 20:57:36,659 INFO L226 Difference]: Without dead ends: 7488 [2022-11-02 20:57:36,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:36,675 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 1399 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:36,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1535 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:57:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2022-11-02 20:57:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7302. [2022-11-02 20:57:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 6028 states have (on average 1.65743198407432) internal successors, (9991), 6034 states have internal predecessors, (9991), 1247 states have call successors, (1247), 22 states have call predecessors, (1247), 26 states have return successors, (1364), 1245 states have call predecessors, (1364), 1246 states have call successors, (1364) [2022-11-02 20:57:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 12602 transitions. [2022-11-02 20:57:37,524 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 12602 transitions. Word has length 125 [2022-11-02 20:57:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:37,525 INFO L495 AbstractCegarLoop]: Abstraction has 7302 states and 12602 transitions. [2022-11-02 20:57:37,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 12602 transitions. [2022-11-02 20:57:37,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-02 20:57:37,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:37,548 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] [2022-11-02 20:57:37,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:57:37,548 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:37,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash 87237326, now seen corresponding path program 1 times [2022-11-02 20:57:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:37,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736145060] [2022-11-02 20:57:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 20:57:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:57:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:57:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:57:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 20:57:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:57:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-02 20:57:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:37,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736145060] [2022-11-02 20:57:37,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736145060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:37,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:37,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146635418] [2022-11-02 20:57:37,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:37,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:37,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:37,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:37,690 INFO L87 Difference]: Start difference. First operand 7302 states and 12602 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:40,434 INFO L93 Difference]: Finished difference Result 18630 states and 32688 transitions. [2022-11-02 20:57:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:40,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-11-02 20:57:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:40,496 INFO L225 Difference]: With dead ends: 18630 [2022-11-02 20:57:40,496 INFO L226 Difference]: Without dead ends: 12467 [2022-11-02 20:57:40,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:40,518 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1400 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:40,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 1520 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:57:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12467 states. [2022-11-02 20:57:41,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12467 to 12281. [2022-11-02 20:57:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12281 states, 10185 states have (on average 1.657437407952872) internal successors, (16881), 10191 states have internal predecessors, (16881), 2069 states have call successors, (2069), 22 states have call predecessors, (2069), 26 states have return successors, (2264), 2067 states have call predecessors, (2264), 2068 states have call successors, (2264) [2022-11-02 20:57:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12281 states to 12281 states and 21214 transitions. [2022-11-02 20:57:41,550 INFO L78 Accepts]: Start accepts. Automaton has 12281 states and 21214 transitions. Word has length 126 [2022-11-02 20:57:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:41,551 INFO L495 AbstractCegarLoop]: Abstraction has 12281 states and 21214 transitions. [2022-11-02 20:57:41,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 12281 states and 21214 transitions. [2022-11-02 20:57:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-02 20:57:41,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:41,577 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] [2022-11-02 20:57:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:57:41,578 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1424852199, now seen corresponding path program 1 times [2022-11-02 20:57:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:41,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598801596] [2022-11-02 20:57:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:41,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 20:57:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:57:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 20:57:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-02 20:57:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-02 20:57:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-02 20:57:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-02 20:57:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:41,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:41,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598801596] [2022-11-02 20:57:41,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598801596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:41,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:41,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:41,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092719928] [2022-11-02 20:57:41,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:41,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:41,694 INFO L87 Difference]: Start difference. First operand 12281 states and 21214 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:45,106 INFO L93 Difference]: Finished difference Result 29588 states and 51653 transitions. [2022-11-02 20:57:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-02 20:57:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:45,205 INFO L225 Difference]: With dead ends: 29588 [2022-11-02 20:57:45,206 INFO L226 Difference]: Without dead ends: 19420 [2022-11-02 20:57:45,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:45,243 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1396 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:45,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 1493 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:57:45,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19420 states. [2022-11-02 20:57:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19420 to 19234. [2022-11-02 20:57:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19234 states, 15935 states have (on average 1.6330718544085348) internal successors, (26023), 15941 states have internal predecessors, (26023), 3272 states have call successors, (3272), 22 states have call predecessors, (3272), 26 states have return successors, (3611), 3270 states have call predecessors, (3611), 3271 states have call successors, (3611) [2022-11-02 20:57:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19234 states to 19234 states and 32906 transitions. [2022-11-02 20:57:47,305 INFO L78 Accepts]: Start accepts. Automaton has 19234 states and 32906 transitions. Word has length 127 [2022-11-02 20:57:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:47,306 INFO L495 AbstractCegarLoop]: Abstraction has 19234 states and 32906 transitions. [2022-11-02 20:57:47,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:47,306 INFO L276 IsEmpty]: Start isEmpty. Operand 19234 states and 32906 transitions. [2022-11-02 20:57:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-02 20:57:47,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:47,337 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] [2022-11-02 20:57:47,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:57:47,337 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1375617167, now seen corresponding path program 1 times [2022-11-02 20:57:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:47,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664712358] [2022-11-02 20:57:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:47,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:57:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-02 20:57:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:57:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:57:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:57:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 20:57:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-02 20:57:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:47,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664712358] [2022-11-02 20:57:47,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664712358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:47,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:47,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:47,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595487887] [2022-11-02 20:57:47,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:47,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:47,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:47,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:47,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:47,497 INFO L87 Difference]: Start difference. First operand 19234 states and 32906 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:52,829 INFO L93 Difference]: Finished difference Result 51020 states and 88773 transitions. [2022-11-02 20:57:52,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:57:52,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-11-02 20:57:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:53,001 INFO L225 Difference]: With dead ends: 51020 [2022-11-02 20:57:53,002 INFO L226 Difference]: Without dead ends: 34541 [2022-11-02 20:57:53,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:53,038 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 1395 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:53,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 1517 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:57:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34541 states. [2022-11-02 20:57:56,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34541 to 34355. [2022-11-02 20:57:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34355 states, 28606 states have (on average 1.6299377752918969) internal successors, (46626), 28612 states have internal predecessors, (46626), 5722 states have call successors, (5722), 22 states have call predecessors, (5722), 26 states have return successors, (6335), 5720 states have call predecessors, (6335), 5721 states have call successors, (6335) [2022-11-02 20:57:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34355 states to 34355 states and 58683 transitions. [2022-11-02 20:57:56,402 INFO L78 Accepts]: Start accepts. Automaton has 34355 states and 58683 transitions. Word has length 128 [2022-11-02 20:57:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:56,402 INFO L495 AbstractCegarLoop]: Abstraction has 34355 states and 58683 transitions. [2022-11-02 20:57:56,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 34355 states and 58683 transitions. [2022-11-02 20:57:56,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-02 20:57:56,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:56,433 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] [2022-11-02 20:57:56,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:57:56,434 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1370742017, now seen corresponding path program 1 times [2022-11-02 20:57:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:56,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358709248] [2022-11-02 20:57:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:56,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:57:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:57:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:57:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:57:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 20:57:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:57:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-02 20:57:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:57:56,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:56,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358709248] [2022-11-02 20:57:56,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358709248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:56,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:56,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:56,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241124726] [2022-11-02 20:57:56,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:56,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:56,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:56,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:56,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:56,574 INFO L87 Difference]: Start difference. First operand 34355 states and 58683 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:03,441 INFO L93 Difference]: Finished difference Result 93892 states and 162567 transitions. [2022-11-02 20:58:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-11-02 20:58:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:03,661 INFO L225 Difference]: With dead ends: 93892 [2022-11-02 20:58:03,661 INFO L226 Difference]: Without dead ends: 63208 [2022-11-02 20:58:03,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:03,741 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 1394 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:03,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 1521 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:58:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63208 states. [2022-11-02 20:58:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63208 to 63022. [2022-11-02 20:58:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63022 states, 52760 states have (on average 1.6257960576194086) internal successors, (85777), 52766 states have internal predecessors, (85777), 10235 states have call successors, (10235), 22 states have call predecessors, (10235), 26 states have return successors, (11380), 10233 states have call predecessors, (11380), 10234 states have call successors, (11380) [2022-11-02 20:58:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63022 states to 63022 states and 107392 transitions. [2022-11-02 20:58:09,473 INFO L78 Accepts]: Start accepts. Automaton has 63022 states and 107392 transitions. Word has length 129 [2022-11-02 20:58:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:09,474 INFO L495 AbstractCegarLoop]: Abstraction has 63022 states and 107392 transitions. [2022-11-02 20:58:09,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 63022 states and 107392 transitions. [2022-11-02 20:58:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-02 20:58:09,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:09,504 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] [2022-11-02 20:58:09,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:58:09,504 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1992082129, now seen corresponding path program 1 times [2022-11-02 20:58:09,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:09,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641008434] [2022-11-02 20:58:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:58:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 20:58:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 20:58:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:58:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-02 20:58:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 20:58:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 20:58:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-02 20:58:09,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:09,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641008434] [2022-11-02 20:58:09,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641008434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:09,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:09,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:09,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182247035] [2022-11-02 20:58:09,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:09,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:09,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:09,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:09,624 INFO L87 Difference]: Start difference. First operand 63022 states and 107392 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:19,300 INFO L93 Difference]: Finished difference Result 118268 states and 205201 transitions. [2022-11-02 20:58:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:19,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-11-02 20:58:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:19,705 INFO L225 Difference]: With dead ends: 118268 [2022-11-02 20:58:19,705 INFO L226 Difference]: Without dead ends: 118081 [2022-11-02 20:58:19,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:19,738 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1390 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:19,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 1516 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:58:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118081 states.