./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a --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 cc6bd9a8e81eed69bb1e052a3e58ea0f1400924f4533cb09f3cdffebd7dfcd4d --- 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-b5237d8 [2022-11-21 16:58:44,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:58:44,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:58:44,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:58:44,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:58:44,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:58:44,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:58:44,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:58:44,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:58:44,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:58:44,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:58:44,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:58:44,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:58:44,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:58:44,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:58:44,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:58:44,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:58:44,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:58:44,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:58:44,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:58:44,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:58:44,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:58:44,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:58:44,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:58:44,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:58:44,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:58:44,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:58:44,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:58:44,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:58:44,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:58:44,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:58:44,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:58:44,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:58:44,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:58:44,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:58:44,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:58:44,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:58:44,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:58:44,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:58:44,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:58:44,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:58:44,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:58:44,666 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:58:44,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:58:44,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:58:44,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:58:44,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:58:44,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:58:44,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:58:44,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:58:44,672 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:58:44,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:58:44,674 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:58:44,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:58:44,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:58:44,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:58:44,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:58:44,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:58:44,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:58:44,675 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:58:44,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:58:44,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:58:44,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:58:44,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:58:44,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:58:44,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:58:44,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:58:44,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:58:44,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:58:44,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:58:44,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:58:44,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:58:44,678 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:58:44,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:58:44,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:58:44,679 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_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6bd9a8e81eed69bb1e052a3e58ea0f1400924f4533cb09f3cdffebd7dfcd4d [2022-11-21 16:58:44,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:58:44,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:58:44,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:58:44,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:58:44,978 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:58:44,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2022-11-21 16:58:48,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:58:48,590 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:58:48,591 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2022-11-21 16:58:48,625 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/data/65a178dfa/d3aed939438e48e587eb86ef680dc7f9/FLAG77cb89223 [2022-11-21 16:58:48,647 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/data/65a178dfa/d3aed939438e48e587eb86ef680dc7f9 [2022-11-21 16:58:48,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:58:48,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:58:48,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:58:48,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:58:48,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:58:48,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:58:48" (1/1) ... [2022-11-21 16:58:48,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101d6b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:48, skipping insertion in model container [2022-11-21 16:58:48,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:58:48" (1/1) ... [2022-11-21 16:58:48,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:58:48,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:58:49,280 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c[48205,48218] [2022-11-21 16:58:49,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:58:49,403 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:58:49,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c[48205,48218] [2022-11-21 16:58:49,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:58:49,585 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:58:49,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49 WrapperNode [2022-11-21 16:58:49,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:58:49,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:58:49,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:58:49,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:58:49,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,754 INFO L138 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 914 [2022-11-21 16:58:49,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:58:49,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:58:49,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:58:49,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:58:49,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:58:49,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:58:49,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:58:49,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:58:49,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (1/1) ... [2022-11-21 16:58:49,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:58:49,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:49,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:58:49,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:58:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-21 16:58:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-21 16:58:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-21 16:58:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-21 16:58:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-11-21 16:58:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-11-21 16:58:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-21 16:58:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-21 16:58:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-21 16:58:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-21 16:58:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-21 16:58:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-21 16:58:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-21 16:58:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-21 16:58:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-21 16:58:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-21 16:58:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-21 16:58:49,957 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-21 16:58:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-21 16:58:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-21 16:58:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-21 16:58:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-21 16:58:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-21 16:58:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:58:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-21 16:58:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-21 16:58:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-21 16:58:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-21 16:58:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-21 16:58:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-21 16:58:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-21 16:58:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-21 16:58:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-21 16:58:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-21 16:58:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-21 16:58:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-21 16:58:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-21 16:58:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-21 16:58:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-21 16:58:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-21 16:58:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:58:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-21 16:58:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-21 16:58:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-21 16:58:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-21 16:58:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:58:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:58:50,210 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:58:50,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:58:51,388 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:58:51,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:58:51,403 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:58:51,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:58:51 BoogieIcfgContainer [2022-11-21 16:58:51,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:58:51,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:58:51,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:58:51,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:58:51,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:58:48" (1/3) ... [2022-11-21 16:58:51,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f012a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:58:51, skipping insertion in model container [2022-11-21 16:58:51,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:58:49" (2/3) ... [2022-11-21 16:58:51,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f012a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:58:51, skipping insertion in model container [2022-11-21 16:58:51,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:58:51" (3/3) ... [2022-11-21 16:58:51,419 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product17.cil.c [2022-11-21 16:58:51,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:58:51,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:58:51,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:58:51,524 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;@5d978f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:58:51,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:58:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 274 states have (on average 1.5875912408759123) internal successors, (435), 277 states have internal predecessors, (435), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-21 16:58:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-21 16:58:51,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:51,556 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:51,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:51,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:51,564 INFO L85 PathProgramCache]: Analyzing trace with hash -299076794, now seen corresponding path program 1 times [2022-11-21 16:58:51,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:51,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431914883] [2022-11-21 16:58:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:51,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:58:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:58:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:58:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:58:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:58:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 16:58:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:58:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:58:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:58:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:58:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:58:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:58:52,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:52,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431914883] [2022-11-21 16:58:52,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431914883] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:58:52,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462867233] [2022-11-21 16:58:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:52,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:52,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:52,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:58:52,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:58:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:58:53,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:58:53,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:58:53,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462867233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:53,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:58:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-21 16:58:53,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093944569] [2022-11-21 16:58:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:53,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:58:53,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:53,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:58:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:58:53,132 INFO L87 Difference]: Start difference. First operand has 345 states, 274 states have (on average 1.5875912408759123) internal successors, (435), 277 states have internal predecessors, (435), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:58:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:53,203 INFO L93 Difference]: Finished difference Result 502 states and 760 transitions. [2022-11-21 16:58:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:58:53,206 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2022-11-21 16:58:53,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:53,221 INFO L225 Difference]: With dead ends: 502 [2022-11-21 16:58:53,221 INFO L226 Difference]: Without dead ends: 338 [2022-11-21 16:58:53,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:58:53,230 INFO L413 NwaCegarLoop]: 527 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, 527 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 [2022-11-21 16:58:53,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:58:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-11-21 16:58:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-11-21 16:58:53,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 268 states have (on average 1.5820895522388059) internal successors, (424), 270 states have internal predecessors, (424), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-21 16:58:53,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions. [2022-11-21 16:58:53,302 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 95 [2022-11-21 16:58:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:53,304 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 519 transitions. [2022-11-21 16:58:53,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:58:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions. [2022-11-21 16:58:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-21 16:58:53,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:53,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:53,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:58:53,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-21 16:58:53,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:53,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:53,519 INFO L85 PathProgramCache]: Analyzing trace with hash 150434243, now seen corresponding path program 1 times [2022-11-21 16:58:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:53,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397746997] [2022-11-21 16:58:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:58:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:58:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:58:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:58:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:58:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:58:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:58:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:58:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:58:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:58:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:58:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:58:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:53,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397746997] [2022-11-21 16:58:53,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397746997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:58:53,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60281710] [2022-11-21 16:58:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:53,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:53,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:53,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:58:54,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:58:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:54,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:58:54,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:58:54,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:58:54,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60281710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:54,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:58:54,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-21 16:58:54,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444384868] [2022-11-21 16:58:54,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:54,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:58:54,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:54,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:58:54,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:58:54,363 INFO L87 Difference]: Start difference. First operand 338 states and 519 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:58:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:54,452 INFO L93 Difference]: Finished difference Result 492 states and 738 transitions. [2022-11-21 16:58:54,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:58:54,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2022-11-21 16:58:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:54,467 INFO L225 Difference]: With dead ends: 492 [2022-11-21 16:58:54,467 INFO L226 Difference]: Without dead ends: 341 [2022-11-21 16:58:54,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:58:54,470 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 1 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1032 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 [2022-11-21 16:58:54,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1032 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:58:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-11-21 16:58:54,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 340. [2022-11-21 16:58:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 270 states have (on average 1.5777777777777777) internal successors, (426), 272 states have internal predecessors, (426), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-21 16:58:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 521 transitions. [2022-11-21 16:58:54,517 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 521 transitions. Word has length 96 [2022-11-21 16:58:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:54,519 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 521 transitions. [2022-11-21 16:58:54,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:58:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 521 transitions. [2022-11-21 16:58:54,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:58:54,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:54,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:58:54,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:58:54,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:54,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:54,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash 765324620, now seen corresponding path program 1 times [2022-11-21 16:58:54,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:54,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873387184] [2022-11-21 16:58:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:54,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:54,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:58:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:54,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:58:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:58:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:58:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:58:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:58:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:58:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:58:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:58:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:58:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 16:58:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:58:55,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:55,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873387184] [2022-11-21 16:58:55,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873387184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:58:55,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398022054] [2022-11-21 16:58:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:55,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:55,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:55,068 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:58:55,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:58:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:58:55,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:58:55,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:58:55,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398022054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:55,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:58:55,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-21 16:58:55,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947222643] [2022-11-21 16:58:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:55,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:58:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:55,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:58:55,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:58:55,436 INFO L87 Difference]: Start difference. First operand 340 states and 521 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:58:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:55,474 INFO L93 Difference]: Finished difference Result 723 states and 1126 transitions. [2022-11-21 16:58:55,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:58:55,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2022-11-21 16:58:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:55,478 INFO L225 Difference]: With dead ends: 723 [2022-11-21 16:58:55,478 INFO L226 Difference]: Without dead ends: 410 [2022-11-21 16:58:55,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:58:55,481 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 126 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1011 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 [2022-11-21 16:58:55,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1011 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:58:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-21 16:58:55,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 402. [2022-11-21 16:58:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 318 states have (on average 1.5943396226415094) internal successors, (507), 320 states have internal predecessors, (507), 62 states have call successors, (62), 21 states have call predecessors, (62), 21 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-21 16:58:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 630 transitions. [2022-11-21 16:58:55,512 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 630 transitions. Word has length 102 [2022-11-21 16:58:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:55,513 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 630 transitions. [2022-11-21 16:58:55,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:58:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 630 transitions. [2022-11-21 16:58:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-21 16:58:55,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:55,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:58:55,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:58:55,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:55,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:55,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1123916787, now seen corresponding path program 1 times [2022-11-21 16:58:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:55,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809702233] [2022-11-21 16:58:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:55,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:58:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:58:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:58:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:58:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:58:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:58:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:58:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:58:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 16:58:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 16:58:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:58:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:58:55,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:55,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809702233] [2022-11-21 16:58:55,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809702233] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:58:55,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502326212] [2022-11-21 16:58:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:55,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:55,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:55,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:58:56,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:58:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:56,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:58:56,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-21 16:58:56,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:58:56,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502326212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:56,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:58:56,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-21 16:58:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571057911] [2022-11-21 16:58:56,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:56,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:58:56,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:56,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:58:56,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:58:56,427 INFO L87 Difference]: Start difference. First operand 402 states and 630 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:58:56,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:56,537 INFO L93 Difference]: Finished difference Result 795 states and 1250 transitions. [2022-11-21 16:58:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:58:56,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2022-11-21 16:58:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:56,545 INFO L225 Difference]: With dead ends: 795 [2022-11-21 16:58:56,545 INFO L226 Difference]: Without dead ends: 404 [2022-11-21 16:58:56,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:58:56,553 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 144 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1873 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 [2022-11-21 16:58:56,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1873 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:58:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-21 16:58:56,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-11-21 16:58:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 319 states have (on average 1.5924764890282133) internal successors, (508), 322 states have internal predecessors, (508), 62 states have call successors, (62), 21 states have call predecessors, (62), 22 states have return successors, (63), 60 states have call predecessors, (63), 61 states have call successors, (63) [2022-11-21 16:58:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 633 transitions. [2022-11-21 16:58:56,595 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 633 transitions. Word has length 103 [2022-11-21 16:58:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:56,595 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 633 transitions. [2022-11-21 16:58:56,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:58:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 633 transitions. [2022-11-21 16:58:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-21 16:58:56,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:56,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-21 16:58:56,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:58:56,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:56,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:56,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:56,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1244565440, now seen corresponding path program 1 times [2022-11-21 16:58:56,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:56,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976402292] [2022-11-21 16:58:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:58:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:58:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:58:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-21 16:58:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:58:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:58:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:58:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:58:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:58:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:58:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 16:58:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:58:57,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:57,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976402292] [2022-11-21 16:58:57,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976402292] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:58:57,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845545680] [2022-11-21 16:58:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:57,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:57,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:57,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:58:57,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:58:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:57,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:58:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-21 16:58:57,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:58:57,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845545680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:57,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:58:57,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-21 16:58:57,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820925875] [2022-11-21 16:58:57,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:57,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:58:57,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:57,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:58:57,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:58:57,608 INFO L87 Difference]: Start difference. First operand 404 states and 633 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:58:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:57,708 INFO L93 Difference]: Finished difference Result 797 states and 1255 transitions. [2022-11-21 16:58:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:58:57,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2022-11-21 16:58:57,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:57,713 INFO L225 Difference]: With dead ends: 797 [2022-11-21 16:58:57,714 INFO L226 Difference]: Without dead ends: 406 [2022-11-21 16:58:57,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:58:57,716 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 143 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1862 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 [2022-11-21 16:58:57,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1862 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:58:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-11-21 16:58:57,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2022-11-21 16:58:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 320 states have (on average 1.590625) internal successors, (509), 324 states have internal predecessors, (509), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2022-11-21 16:58:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2022-11-21 16:58:57,756 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 104 [2022-11-21 16:58:57,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:57,759 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2022-11-21 16:58:57,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:58:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2022-11-21 16:58:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-21 16:58:57,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:57,762 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:57,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:58:57,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:57,969 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash 904075134, now seen corresponding path program 1 times [2022-11-21 16:58:57,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:57,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490511902] [2022-11-21 16:58:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:57,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:58:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:58:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:58:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:58:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:58:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:58:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:58:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:58:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:58:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:58:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:58:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:58:58,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:58,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490511902] [2022-11-21 16:58:58,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490511902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:58,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:58:58,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:58:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214336073] [2022-11-21 16:58:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:58:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:58:58,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:58:58,227 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:59:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:00,640 INFO L93 Difference]: Finished difference Result 881 states and 1407 transitions. [2022-11-21 16:59:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:59:00,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2022-11-21 16:59:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:00,645 INFO L225 Difference]: With dead ends: 881 [2022-11-21 16:59:00,646 INFO L226 Difference]: Without dead ends: 498 [2022-11-21 16:59:00,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:59:00,648 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1268 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:00,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1136 Invalid, 2531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-21 16:59:00,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-11-21 16:59:00,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 406. [2022-11-21 16:59:00,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 320 states have (on average 1.590625) internal successors, (509), 324 states have internal predecessors, (509), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (67), 60 states have call predecessors, (67), 61 states have call successors, (67) [2022-11-21 16:59:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 638 transitions. [2022-11-21 16:59:00,740 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 638 transitions. Word has length 105 [2022-11-21 16:59:00,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:00,740 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 638 transitions. [2022-11-21 16:59:00,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:59:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 638 transitions. [2022-11-21 16:59:00,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 16:59:00,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:00,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:00,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:59:00,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:00,748 INFO L85 PathProgramCache]: Analyzing trace with hash -232989553, now seen corresponding path program 2 times [2022-11-21 16:59:00,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:00,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300876731] [2022-11-21 16:59:00,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:00,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:59:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:59:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:59:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:59:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:59:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:59:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:59:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:59:00,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:00,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300876731] [2022-11-21 16:59:00,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300876731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:00,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:00,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:59:00,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565059325] [2022-11-21 16:59:00,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:00,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:59:00,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:59:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:59:00,991 INFO L87 Difference]: Start difference. First operand 406 states and 638 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:59:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:03,322 INFO L93 Difference]: Finished difference Result 883 states and 1410 transitions. [2022-11-21 16:59:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:59:03,323 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2022-11-21 16:59:03,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:03,328 INFO L225 Difference]: With dead ends: 883 [2022-11-21 16:59:03,328 INFO L226 Difference]: Without dead ends: 500 [2022-11-21 16:59:03,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:59:03,331 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1261 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:03,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1135 Invalid, 2533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-21 16:59:03,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-21 16:59:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 408. [2022-11-21 16:59:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 321 states have (on average 1.588785046728972) internal successors, (510), 326 states have internal predecessors, (510), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (69), 60 states have call predecessors, (69), 61 states have call successors, (69) [2022-11-21 16:59:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 641 transitions. [2022-11-21 16:59:03,386 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 641 transitions. Word has length 106 [2022-11-21 16:59:03,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:03,386 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 641 transitions. [2022-11-21 16:59:03,387 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:59:03,387 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 641 transitions. [2022-11-21 16:59:03,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-21 16:59:03,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:03,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:03,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:59:03,390 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:03,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:03,391 INFO L85 PathProgramCache]: Analyzing trace with hash 754334179, now seen corresponding path program 1 times [2022-11-21 16:59:03,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:03,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311051849] [2022-11-21 16:59:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:03,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:59:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:59:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:59:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:59:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:59:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:59:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:59:03,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:03,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311051849] [2022-11-21 16:59:03,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311051849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:03,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:03,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:59:03,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369017810] [2022-11-21 16:59:03,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:03,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:59:03,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:03,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:59:03,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:59:03,695 INFO L87 Difference]: Start difference. First operand 408 states and 641 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-21 16:59:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:06,788 INFO L93 Difference]: Finished difference Result 881 states and 1405 transitions. [2022-11-21 16:59:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:59:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 107 [2022-11-21 16:59:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:06,793 INFO L225 Difference]: With dead ends: 881 [2022-11-21 16:59:06,793 INFO L226 Difference]: Without dead ends: 500 [2022-11-21 16:59:06,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:59:06,796 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1406 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:06,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1485 Invalid, 4028 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [431 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-21 16:59:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-21 16:59:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 408. [2022-11-21 16:59:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 321 states have (on average 1.588785046728972) internal successors, (510), 326 states have internal predecessors, (510), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2022-11-21 16:59:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 640 transitions. [2022-11-21 16:59:06,846 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 640 transitions. Word has length 107 [2022-11-21 16:59:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:06,847 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 640 transitions. [2022-11-21 16:59:06,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-21 16:59:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 640 transitions. [2022-11-21 16:59:06,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-21 16:59:06,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:06,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:06,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:59:06,851 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:06,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1320832791, now seen corresponding path program 2 times [2022-11-21 16:59:06,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:06,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720098395] [2022-11-21 16:59:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:06,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:59:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:59:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:59:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:59:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 16:59:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:59:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:59:07,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:07,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720098395] [2022-11-21 16:59:07,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720098395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:07,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:07,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:59:07,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831715980] [2022-11-21 16:59:07,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:07,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:59:07,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:59:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:59:07,162 INFO L87 Difference]: Start difference. First operand 408 states and 640 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-21 16:59:10,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:10,296 INFO L93 Difference]: Finished difference Result 883 states and 1411 transitions. [2022-11-21 16:59:10,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:59:10,297 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 108 [2022-11-21 16:59:10,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:10,305 INFO L225 Difference]: With dead ends: 883 [2022-11-21 16:59:10,306 INFO L226 Difference]: Without dead ends: 502 [2022-11-21 16:59:10,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:59:10,315 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1402 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:10,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 1484 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-21 16:59:10,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-11-21 16:59:10,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 410. [2022-11-21 16:59:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 322 states have (on average 1.5869565217391304) internal successors, (511), 328 states have internal predecessors, (511), 62 states have call successors, (62), 21 states have call predecessors, (62), 25 states have return successors, (73), 60 states have call predecessors, (73), 61 states have call successors, (73) [2022-11-21 16:59:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 646 transitions. [2022-11-21 16:59:10,390 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 646 transitions. Word has length 108 [2022-11-21 16:59:10,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:10,392 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 646 transitions. [2022-11-21 16:59:10,392 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-21 16:59:10,392 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 646 transitions. [2022-11-21 16:59:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 16:59:10,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:10,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:10,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:59:10,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:10,398 INFO L85 PathProgramCache]: Analyzing trace with hash -365545368, now seen corresponding path program 1 times [2022-11-21 16:59:10,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:10,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080210720] [2022-11-21 16:59:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:10,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:59:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:59:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:59:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 16:59:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:59:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 16:59:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:10,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:10,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080210720] [2022-11-21 16:59:10,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080210720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:10,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576382338] [2022-11-21 16:59:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:10,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:10,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:10,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:10,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:59:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:10,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:59:10,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:10,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:11,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576382338] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:11,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:59:11,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-21 16:59:11,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205739226] [2022-11-21 16:59:11,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:11,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:59:11,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:11,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:59:11,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:59:11,026 INFO L87 Difference]: Start difference. First operand 410 states and 646 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 16:59:13,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:13,709 INFO L93 Difference]: Finished difference Result 1070 states and 1780 transitions. [2022-11-21 16:59:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:59:13,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2022-11-21 16:59:13,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:13,716 INFO L225 Difference]: With dead ends: 1070 [2022-11-21 16:59:13,716 INFO L226 Difference]: Without dead ends: 919 [2022-11-21 16:59:13,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:59:13,718 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1613 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:13,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 1737 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-21 16:59:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-11-21 16:59:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 803. [2022-11-21 16:59:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 636 states have (on average 1.6415094339622642) internal successors, (1044), 642 states have internal predecessors, (1044), 141 states have call successors, (141), 21 states have call predecessors, (141), 25 states have return successors, (162), 139 states have call predecessors, (162), 140 states have call successors, (162) [2022-11-21 16:59:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1347 transitions. [2022-11-21 16:59:13,798 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1347 transitions. Word has length 109 [2022-11-21 16:59:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:13,798 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1347 transitions. [2022-11-21 16:59:13,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 16:59:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1347 transitions. [2022-11-21 16:59:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-21 16:59:13,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:13,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:13,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:59:14,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d66159-a40c-4a93-9371-4a7f97c12c03/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 16:59:14,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1387538683, now seen corresponding path program 1 times [2022-11-21 16:59:14,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:14,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551394108] [2022-11-21 16:59:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:14,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:59:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:59:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:59:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:59:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 16:59:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 16:59:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:14,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:14,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551394108] [2022-11-21 16:59:14,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551394108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:14,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:14,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:14,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499907552] [2022-11-21 16:59:14,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:14,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:14,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:14,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:14,172 INFO L87 Difference]: Start difference. First operand 803 states and 1347 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:15,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:15,890 INFO L93 Difference]: Finished difference Result 2028 states and 3485 transitions. [2022-11-21 16:59:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:15,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2022-11-21 16:59:15,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:15,900 INFO L225 Difference]: With dead ends: 2028 [2022-11-21 16:59:15,900 INFO L226 Difference]: Without dead ends: 1293 [2022-11-21 16:59:15,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:15,905 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1246 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:15,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 987 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2022-11-21 16:59:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1193. [2022-11-21 16:59:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 947 states have (on average 1.6515311510031678) internal successors, (1564), 953 states have internal predecessors, (1564), 220 states have call successors, (220), 21 states have call predecessors, (220), 25 states have return successors, (251), 218 states have call predecessors, (251), 219 states have call successors, (251) [2022-11-21 16:59:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 2035 transitions. [2022-11-21 16:59:16,052 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 2035 transitions. Word has length 115 [2022-11-21 16:59:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:16,052 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 2035 transitions. [2022-11-21 16:59:16,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 2035 transitions. [2022-11-21 16:59:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 16:59:16,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:16,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:16,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:59:16,060 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:16,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1259187153, now seen corresponding path program 1 times [2022-11-21 16:59:16,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:16,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225316302] [2022-11-21 16:59:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:16,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:59:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:59:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:59:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 16:59:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 16:59:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:59:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:16,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:16,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225316302] [2022-11-21 16:59:16,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225316302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:16,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:16,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:16,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401461141] [2022-11-21 16:59:16,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:16,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:16,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:16,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:16,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:16,198 INFO L87 Difference]: Start difference. First operand 1193 states and 2035 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:17,981 INFO L93 Difference]: Finished difference Result 2977 states and 5159 transitions. [2022-11-21 16:59:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:17,982 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-11-21 16:59:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:17,993 INFO L225 Difference]: With dead ends: 2977 [2022-11-21 16:59:17,994 INFO L226 Difference]: Without dead ends: 1905 [2022-11-21 16:59:17,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:17,999 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1248 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:18,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 982 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2022-11-21 16:59:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1805. [2022-11-21 16:59:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1440 states have (on average 1.6576388888888889) internal successors, (2387), 1446 states have internal predecessors, (2387), 339 states have call successors, (339), 21 states have call predecessors, (339), 25 states have return successors, (370), 337 states have call predecessors, (370), 338 states have call successors, (370) [2022-11-21 16:59:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 3096 transitions. [2022-11-21 16:59:18,183 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 3096 transitions. Word has length 116 [2022-11-21 16:59:18,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:18,184 INFO L495 AbstractCegarLoop]: Abstraction has 1805 states and 3096 transitions. [2022-11-21 16:59:18,184 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:18,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 3096 transitions. [2022-11-21 16:59:18,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 16:59:18,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:18,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:18,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:59:18,198 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:18,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:18,198 INFO L85 PathProgramCache]: Analyzing trace with hash 245755623, now seen corresponding path program 1 times [2022-11-21 16:59:18,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:18,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368611552] [2022-11-21 16:59:18,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:18,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 16:59:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:59:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:59:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:59:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:59:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:59:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:18,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368611552] [2022-11-21 16:59:18,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368611552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:18,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:18,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533979428] [2022-11-21 16:59:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:18,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:18,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:18,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:18,350 INFO L87 Difference]: Start difference. First operand 1805 states and 3096 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:20,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:20,234 INFO L93 Difference]: Finished difference Result 4402 states and 7693 transitions. [2022-11-21 16:59:20,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:20,235 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2022-11-21 16:59:20,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:20,252 INFO L225 Difference]: With dead ends: 4402 [2022-11-21 16:59:20,252 INFO L226 Difference]: Without dead ends: 2843 [2022-11-21 16:59:20,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:20,260 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1239 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:20,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 955 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:20,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2022-11-21 16:59:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2743. [2022-11-21 16:59:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2216 states have (on average 1.6629061371841156) internal successors, (3685), 2222 states have internal predecessors, (3685), 501 states have call successors, (501), 21 states have call predecessors, (501), 25 states have return successors, (548), 499 states have call predecessors, (548), 500 states have call successors, (548) [2022-11-21 16:59:20,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 4734 transitions. [2022-11-21 16:59:20,511 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 4734 transitions. Word has length 117 [2022-11-21 16:59:20,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:20,511 INFO L495 AbstractCegarLoop]: Abstraction has 2743 states and 4734 transitions. [2022-11-21 16:59:20,512 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:20,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 4734 transitions. [2022-11-21 16:59:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-21 16:59:20,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:20,525 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:20,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:59:20,526 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:20,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:20,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1189274254, now seen corresponding path program 1 times [2022-11-21 16:59:20,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:20,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375460860] [2022-11-21 16:59:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 16:59:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:59:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:59:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:59:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:59:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 16:59:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:20,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:20,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375460860] [2022-11-21 16:59:20,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375460860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:20,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:20,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:20,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307017180] [2022-11-21 16:59:20,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:20,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:20,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:20,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:20,686 INFO L87 Difference]: Start difference. First operand 2743 states and 4734 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:22,695 INFO L93 Difference]: Finished difference Result 6651 states and 11702 transitions. [2022-11-21 16:59:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:22,696 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2022-11-21 16:59:22,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:22,722 INFO L225 Difference]: With dead ends: 6651 [2022-11-21 16:59:22,722 INFO L226 Difference]: Without dead ends: 4358 [2022-11-21 16:59:22,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:22,733 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1241 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:22,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 955 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2022-11-21 16:59:23,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4258. [2022-11-21 16:59:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4258 states, 3486 states have (on average 1.6666666666666667) internal successors, (5810), 3492 states have internal predecessors, (5810), 746 states have call successors, (746), 21 states have call predecessors, (746), 25 states have return successors, (819), 744 states have call predecessors, (819), 745 states have call successors, (819) [2022-11-21 16:59:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 7375 transitions. [2022-11-21 16:59:23,275 INFO L78 Accepts]: Start accepts. Automaton has 4258 states and 7375 transitions. Word has length 118 [2022-11-21 16:59:23,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:23,276 INFO L495 AbstractCegarLoop]: Abstraction has 4258 states and 7375 transitions. [2022-11-21 16:59:23,276 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4258 states and 7375 transitions. [2022-11-21 16:59:23,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-21 16:59:23,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:23,293 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:23,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:59:23,294 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:23,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:23,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2146579299, now seen corresponding path program 1 times [2022-11-21 16:59:23,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:23,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513510921] [2022-11-21 16:59:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:23,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:59:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:59:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:59:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:59:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 16:59:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 16:59:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:23,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:23,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513510921] [2022-11-21 16:59:23,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513510921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:23,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:23,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:23,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183225297] [2022-11-21 16:59:23,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:23,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:23,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:23,452 INFO L87 Difference]: Start difference. First operand 4258 states and 7375 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:25,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:25,645 INFO L93 Difference]: Finished difference Result 10667 states and 18814 transitions. [2022-11-21 16:59:25,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:25,646 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-21 16:59:25,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:25,686 INFO L225 Difference]: With dead ends: 10667 [2022-11-21 16:59:25,686 INFO L226 Difference]: Without dead ends: 7091 [2022-11-21 16:59:25,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:25,700 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1235 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:25,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1008 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-11-21 16:59:26,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 6991. [2022-11-21 16:59:26,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 5726 states have (on average 1.6617184771219) internal successors, (9515), 5732 states have internal predecessors, (9515), 1239 states have call successors, (1239), 21 states have call predecessors, (1239), 25 states have return successors, (1356), 1237 states have call predecessors, (1356), 1238 states have call successors, (1356) [2022-11-21 16:59:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 12110 transitions. [2022-11-21 16:59:26,520 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 12110 transitions. Word has length 119 [2022-11-21 16:59:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:26,520 INFO L495 AbstractCegarLoop]: Abstraction has 6991 states and 12110 transitions. [2022-11-21 16:59:26,521 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 12110 transitions. [2022-11-21 16:59:26,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-21 16:59:26,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:26,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:26,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:59:26,552 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:26,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:26,553 INFO L85 PathProgramCache]: Analyzing trace with hash -412052234, now seen corresponding path program 1 times [2022-11-21 16:59:26,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:26,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361756018] [2022-11-21 16:59:26,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:26,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:59:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:59:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 16:59:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:59:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 16:59:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 16:59:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:26,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:26,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361756018] [2022-11-21 16:59:26,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361756018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:26,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:26,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:26,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707620587] [2022-11-21 16:59:26,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:26,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:26,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:26,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:26,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:26,711 INFO L87 Difference]: Start difference. First operand 6991 states and 12110 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:29,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:29,193 INFO L93 Difference]: Finished difference Result 17807 states and 31386 transitions. [2022-11-21 16:59:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:29,194 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-11-21 16:59:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:29,247 INFO L225 Difference]: With dead ends: 17807 [2022-11-21 16:59:29,248 INFO L226 Difference]: Without dead ends: 11875 [2022-11-21 16:59:29,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:29,270 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1233 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:29,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 988 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-21 16:59:29,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11875 states. [2022-11-21 16:59:30,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11875 to 11775. [2022-11-21 16:59:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11775 states, 9688 states have (on average 1.6611271676300579) internal successors, (16093), 9694 states have internal predecessors, (16093), 2061 states have call successors, (2061), 21 states have call predecessors, (2061), 25 states have return successors, (2256), 2059 states have call predecessors, (2256), 2060 states have call successors, (2256) [2022-11-21 16:59:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11775 states to 11775 states and 20410 transitions. [2022-11-21 16:59:30,503 INFO L78 Accepts]: Start accepts. Automaton has 11775 states and 20410 transitions. Word has length 120 [2022-11-21 16:59:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:30,504 INFO L495 AbstractCegarLoop]: Abstraction has 11775 states and 20410 transitions. [2022-11-21 16:59:30,504 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:30,505 INFO L276 IsEmpty]: Start isEmpty. Operand 11775 states and 20410 transitions. [2022-11-21 16:59:30,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-21 16:59:30,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:30,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:30,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:59:30,545 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash -628071131, now seen corresponding path program 1 times [2022-11-21 16:59:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:30,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316875356] [2022-11-21 16:59:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:30,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:59:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:59:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:59:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 16:59:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 16:59:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 16:59:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:30,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:30,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316875356] [2022-11-21 16:59:30,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316875356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:30,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:30,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384200111] [2022-11-21 16:59:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:30,741 INFO L87 Difference]: Start difference. First operand 11775 states and 20410 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:33,726 INFO L93 Difference]: Finished difference Result 28240 states and 49511 transitions. [2022-11-21 16:59:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:33,727 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-21 16:59:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:33,807 INFO L225 Difference]: With dead ends: 28240 [2022-11-21 16:59:33,807 INFO L226 Difference]: Without dead ends: 18468 [2022-11-21 16:59:33,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:33,838 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1235 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:33,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 957 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18468 states. [2022-11-21 16:59:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18468 to 18368. [2022-11-21 16:59:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18368 states, 15078 states have (on average 1.6354291020029181) internal successors, (24659), 15084 states have internal predecessors, (24659), 3264 states have call successors, (3264), 21 states have call predecessors, (3264), 25 states have return successors, (3603), 3262 states have call predecessors, (3603), 3263 states have call successors, (3603) [2022-11-21 16:59:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18368 states to 18368 states and 31526 transitions. [2022-11-21 16:59:35,672 INFO L78 Accepts]: Start accepts. Automaton has 18368 states and 31526 transitions. Word has length 121 [2022-11-21 16:59:35,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:35,672 INFO L495 AbstractCegarLoop]: Abstraction has 18368 states and 31526 transitions. [2022-11-21 16:59:35,673 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 18368 states and 31526 transitions. [2022-11-21 16:59:35,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-21 16:59:35,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:35,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:35,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:59:35,705 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:35,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1967538743, now seen corresponding path program 1 times [2022-11-21 16:59:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:35,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423164268] [2022-11-21 16:59:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:35,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:59:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:59:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:59:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 16:59:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:59:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:59:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:35,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:35,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423164268] [2022-11-21 16:59:35,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423164268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:35,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:35,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:35,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098346881] [2022-11-21 16:59:35,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:35,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:35,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:35,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:35,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:35,864 INFO L87 Difference]: Start difference. First operand 18368 states and 31526 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:40,050 INFO L93 Difference]: Finished difference Result 48662 states and 85015 transitions. [2022-11-21 16:59:40,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:40,051 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-11-21 16:59:40,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:40,240 INFO L225 Difference]: With dead ends: 48662 [2022-11-21 16:59:40,241 INFO L226 Difference]: Without dead ends: 32904 [2022-11-21 16:59:40,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:40,300 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1231 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:40,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 956 Invalid, 1748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-21 16:59:40,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32904 states. [2022-11-21 16:59:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32904 to 32804. [2022-11-21 16:59:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32804 states, 27064 states have (on average 1.6319095477386936) internal successors, (44166), 27070 states have internal predecessors, (44166), 5714 states have call successors, (5714), 21 states have call predecessors, (5714), 25 states have return successors, (6327), 5712 states have call predecessors, (6327), 5713 states have call successors, (6327) [2022-11-21 16:59:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32804 states to 32804 states and 56207 transitions. [2022-11-21 16:59:43,773 INFO L78 Accepts]: Start accepts. Automaton has 32804 states and 56207 transitions. Word has length 122 [2022-11-21 16:59:43,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:43,773 INFO L495 AbstractCegarLoop]: Abstraction has 32804 states and 56207 transitions. [2022-11-21 16:59:43,773 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 32804 states and 56207 transitions. [2022-11-21 16:59:43,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-21 16:59:43,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:43,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:43,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:59:43,804 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:43,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:43,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1698809343, now seen corresponding path program 1 times [2022-11-21 16:59:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:43,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579800186] [2022-11-21 16:59:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:43,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:59:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:59:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:59:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:59:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:59:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:59:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:43,943 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:43,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:43,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579800186] [2022-11-21 16:59:43,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579800186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:43,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:43,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:43,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467090869] [2022-11-21 16:59:43,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:43,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:43,947 INFO L87 Difference]: Start difference. First operand 32804 states and 56207 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:50,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:50,042 INFO L93 Difference]: Finished difference Result 89559 states and 155649 transitions. [2022-11-21 16:59:50,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:50,043 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-11-21 16:59:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:50,636 INFO L225 Difference]: With dead ends: 89559 [2022-11-21 16:59:50,637 INFO L226 Difference]: Without dead ends: 60241 [2022-11-21 16:59:50,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:59:50,723 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 1233 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:50,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 959 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 16:59:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60241 states. [2022-11-21 16:59:55,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60241 to 60141. [2022-11-21 16:59:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60141 states, 49888 states have (on average 1.6274254329698525) internal successors, (81189), 49894 states have internal predecessors, (81189), 10227 states have call successors, (10227), 21 states have call predecessors, (10227), 25 states have return successors, (11372), 10225 states have call predecessors, (11372), 10226 states have call successors, (11372) [2022-11-21 16:59:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60141 states to 60141 states and 102788 transitions. [2022-11-21 16:59:55,728 INFO L78 Accepts]: Start accepts. Automaton has 60141 states and 102788 transitions. Word has length 123 [2022-11-21 16:59:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:55,730 INFO L495 AbstractCegarLoop]: Abstraction has 60141 states and 102788 transitions. [2022-11-21 16:59:55,730 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:59:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 60141 states and 102788 transitions. [2022-11-21 16:59:55,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-21 16:59:55,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:55,770 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-21 16:59:55,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:59:55,771 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:55,772 INFO L85 PathProgramCache]: Analyzing trace with hash 554856855, now seen corresponding path program 1 times [2022-11-21 16:59:55,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:55,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393614363] [2022-11-21 16:59:55,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:59:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:59:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:59:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:59:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:59:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:59:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:59:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:59:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:59:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 16:59:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 16:59:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:59:55,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:55,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393614363] [2022-11-21 16:59:55,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393614363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:55,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:55,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:59:55,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707513798] [2022-11-21 16:59:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:55,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:59:55,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:59:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:59:55,941 INFO L87 Difference]: Start difference. First operand 60141 states and 102788 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)