./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ed16a2a74d5e33f66ab9b575b27ed24f9a6964adc1478fcc08a5f7b11595b14 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:06:39,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:39,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:39,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:39,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:39,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:39,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:39,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:39,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:39,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:39,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:39,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:39,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:39,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:39,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:39,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:39,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:39,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:39,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:39,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:39,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:39,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:39,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:39,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:39,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:39,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:39,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:39,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:39,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:39,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:39,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:39,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:39,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:39,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:39,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:39,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:39,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:39,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:39,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:39,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:39,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:39,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:06:40,007 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:40,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:40,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:40,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:40,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:40,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:40,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:40,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:40,011 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:40,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:40,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:06:40,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:40,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:06:40,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:40,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:40,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:40,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:40,015 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:06:40,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:40,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:40,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:40,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:40,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:40,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:40,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:40,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:40,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:40,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:40,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:40,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:06:40,019 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:40,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:40,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:40,020 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_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ed16a2a74d5e33f66ab9b575b27ed24f9a6964adc1478fcc08a5f7b11595b14 [2022-11-20 11:06:40,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:40,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:40,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:40,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:40,393 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:40,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/email_spec0_product35.cil.c [2022-11-20 11:06:43,419 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:43,758 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:43,761 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/sv-benchmarks/c/product-lines/email_spec0_product35.cil.c [2022-11-20 11:06:43,795 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/data/000e8562f/3052dcf891404f619bcf95bb5660ccfb/FLAG03078ed46 [2022-11-20 11:06:43,816 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/data/000e8562f/3052dcf891404f619bcf95bb5660ccfb [2022-11-20 11:06:43,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:43,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:43,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:43,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:43,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:43,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:43" (1/1) ... [2022-11-20 11:06:43,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db5eaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:43, skipping insertion in model container [2022-11-20 11:06:43,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:43" (1/1) ... [2022-11-20 11:06:43,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:43,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:44,262 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_fea22c17-c84d-46b2-b383-25c458a3e844/sv-benchmarks/c/product-lines/email_spec0_product35.cil.c[5573,5586] [2022-11-20 11:06:44,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:44,614 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:06:44,637 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_fea22c17-c84d-46b2-b383-25c458a3e844/sv-benchmarks/c/product-lines/email_spec0_product35.cil.c[5573,5586] [2022-11-20 11:06:44,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:44,829 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:06:44,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44 WrapperNode [2022-11-20 11:06:44,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:44,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:44,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:06:44,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:06:44,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:44,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:44,966 INFO L138 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1139 [2022-11-20 11:06:44,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:44,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:06:44,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:06:44,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:06:44,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:44,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:44,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:44,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:45,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:45,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:45,024 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:45,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:45,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:06:45,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:06:45,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:06:45,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:06:45,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (1/1) ... [2022-11-20 11:06:45,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:45,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:45,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:45,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:06:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 11:06:45,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 11:06:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 11:06:45,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 11:06:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 11:06:45,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 11:06:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 11:06:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 11:06:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 11:06:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 11:06:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 11:06:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 11:06:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-20 11:06:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-20 11:06:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 11:06:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 11:06:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-20 11:06:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-20 11:06:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 11:06:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 11:06:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 11:06:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 11:06:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-20 11:06:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-20 11:06:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 11:06:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 11:06:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 11:06:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 11:06:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 11:06:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-20 11:06:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-20 11:06:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 11:06:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 11:06:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:06:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-20 11:06:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-20 11:06:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 11:06:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 11:06:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 11:06:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 11:06:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 11:06:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 11:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 11:06:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 11:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 11:06:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 11:06:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-20 11:06:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-20 11:06:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 11:06:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 11:06:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 11:06:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 11:06:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 11:06:45,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 11:06:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 11:06:45,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 11:06:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:06:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 11:06:45,188 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 11:06:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 11:06:45,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 11:06:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:06:45,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:06:45,527 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:06:45,530 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:06:46,580 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:06:46,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:06:46,591 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:06:46,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:46 BoogieIcfgContainer [2022-11-20 11:06:46,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:06:46,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:06:46,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:06:46,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:06:46,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:06:43" (1/3) ... [2022-11-20 11:06:46,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738cd435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:44" (2/3) ... [2022-11-20 11:06:46,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738cd435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:46" (3/3) ... [2022-11-20 11:06:46,607 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product35.cil.c [2022-11-20 11:06:46,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:06:46,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:06:46,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:06:46,705 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;@49f42acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:06:46,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:06:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-20 11:06:46,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-20 11:06:46,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:46,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:46,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1703542870, now seen corresponding path program 1 times [2022-11-20 11:06:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:46,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630711529] [2022-11-20 11:06:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:46,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:06:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 11:06:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 11:06:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 11:06:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:06:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 11:06:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 11:06:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:06:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 11:06:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 11:06:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 11:06:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 11:06:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:06:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:06:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:06:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 11:06:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 11:06:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 11:06:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 11:06:47,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:47,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630711529] [2022-11-20 11:06:47,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630711529] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:47,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23624239] [2022-11-20 11:06:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:47,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:47,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:47,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:47,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:06:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:48,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:06:48,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:06:48,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:48,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23624239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:48,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:48,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-20 11:06:48,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635582550] [2022-11-20 11:06:48,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:48,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:06:48,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:06:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:06:48,386 INFO L87 Difference]: Start difference. First operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:06:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:48,464 INFO L93 Difference]: Finished difference Result 728 states and 1078 transitions. [2022-11-20 11:06:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:06:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 177 [2022-11-20 11:06:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:48,480 INFO L225 Difference]: With dead ends: 728 [2022-11-20 11:06:48,481 INFO L226 Difference]: Without dead ends: 456 [2022-11-20 11:06:48,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:06:48,490 INFO L413 NwaCegarLoop]: 694 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, 694 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:48,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:48,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-20 11:06:48,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-11-20 11:06:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 352 states have (on average 1.53125) internal successors, (539), 356 states have internal predecessors, (539), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-20 11:06:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2022-11-20 11:06:48,584 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 177 [2022-11-20 11:06:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:48,586 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2022-11-20 11:06:48,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:06:48,587 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2022-11-20 11:06:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 11:06:48,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:48,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:48,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 11:06:48,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:48,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:48,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1047783582, now seen corresponding path program 1 times [2022-11-20 11:06:48,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:48,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371036331] [2022-11-20 11:06:48,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:48,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:06:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 11:06:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 11:06:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 11:06:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:06:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 11:06:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:06:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:06:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:06:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:06:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 11:06:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 11:06:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 11:06:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 11:06:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 11:06:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 11:06:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 11:06:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 11:06:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 11:06:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:49,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371036331] [2022-11-20 11:06:49,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371036331] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:49,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517350329] [2022-11-20 11:06:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:49,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:49,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:49,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:49,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:06:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:06:49,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:06:49,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:49,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517350329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:49,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:49,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 11:06:49,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786046958] [2022-11-20 11:06:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:49,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:06:49,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:49,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:06:49,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:06:49,850 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:06:49,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:49,950 INFO L93 Difference]: Finished difference Result 718 states and 1056 transitions. [2022-11-20 11:06:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:06:49,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 178 [2022-11-20 11:06:49,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:49,956 INFO L225 Difference]: With dead ends: 718 [2022-11-20 11:06:49,957 INFO L226 Difference]: Without dead ends: 459 [2022-11-20 11:06:49,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:06:49,960 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:49,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1366 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:49,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-20 11:06:49,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2022-11-20 11:06:49,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 354 states have (on average 1.5282485875706215) internal successors, (541), 358 states have internal predecessors, (541), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-20 11:06:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 688 transitions. [2022-11-20 11:06:49,991 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 688 transitions. Word has length 178 [2022-11-20 11:06:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:49,992 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 688 transitions. [2022-11-20 11:06:49,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:06:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 688 transitions. [2022-11-20 11:06:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-20 11:06:49,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:49,996 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:50,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:50,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:50,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:50,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:50,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1859131754, now seen corresponding path program 1 times [2022-11-20 11:06:50,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:50,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944329185] [2022-11-20 11:06:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:50,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:06:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 11:06:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 11:06:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:06:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 11:06:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 11:06:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:06:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:06:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 11:06:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 11:06:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:06:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:06:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:06:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 11:06:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 11:06:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 11:06:50,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:50,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944329185] [2022-11-20 11:06:50,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944329185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:50,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337685247] [2022-11-20 11:06:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:50,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:50,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:50,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:50,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:06:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:06:51,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 11:06:51,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:51,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337685247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:51,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:51,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 11:06:51,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840605721] [2022-11-20 11:06:51,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:51,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:06:51,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:51,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:06:51,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:06:51,045 INFO L87 Difference]: Start difference. First operand 458 states and 688 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:06:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:51,129 INFO L93 Difference]: Finished difference Result 969 states and 1476 transitions. [2022-11-20 11:06:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:06:51,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2022-11-20 11:06:51,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:51,143 INFO L225 Difference]: With dead ends: 969 [2022-11-20 11:06:51,143 INFO L226 Difference]: Without dead ends: 538 [2022-11-20 11:06:51,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:06:51,148 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 142 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:51,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1345 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:51,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-20 11:06:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2022-11-20 11:06:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.5485436893203883) internal successors, (638), 416 states have internal predecessors, (638), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-20 11:06:51,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 813 transitions. [2022-11-20 11:06:51,210 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 813 transitions. Word has length 168 [2022-11-20 11:06:51,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:51,211 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 813 transitions. [2022-11-20 11:06:51,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:06:51,211 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 813 transitions. [2022-11-20 11:06:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-20 11:06:51,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:51,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:51,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:51,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:51,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:51,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash -12263706, now seen corresponding path program 1 times [2022-11-20 11:06:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:51,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306418698] [2022-11-20 11:06:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:51,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:06:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 11:06:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 11:06:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:06:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:06:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 11:06:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 11:06:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:06:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 11:06:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 11:06:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 11:06:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 11:06:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:06:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 11:06:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 11:06:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 11:06:51,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:51,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306418698] [2022-11-20 11:06:51,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306418698] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:51,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312317942] [2022-11-20 11:06:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:51,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:51,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:51,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:51,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:06:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:52,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 11:06:52,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:52,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312317942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:52,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:52,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-20 11:06:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486573173] [2022-11-20 11:06:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:52,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:06:52,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:52,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:06:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:06:52,256 INFO L87 Difference]: Start difference. First operand 530 states and 813 transitions. Second operand has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:06:52,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:52,347 INFO L93 Difference]: Finished difference Result 1051 states and 1616 transitions. [2022-11-20 11:06:52,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:06:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 169 [2022-11-20 11:06:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:52,352 INFO L225 Difference]: With dead ends: 1051 [2022-11-20 11:06:52,352 INFO L226 Difference]: Without dead ends: 532 [2022-11-20 11:06:52,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:06:52,358 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 160 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:52,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2525 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:52,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-11-20 11:06:52,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-11-20 11:06:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 413 states have (on average 1.5472154963680387) internal successors, (639), 418 states have internal predecessors, (639), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2022-11-20 11:06:52,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 816 transitions. [2022-11-20 11:06:52,395 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 816 transitions. Word has length 169 [2022-11-20 11:06:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:52,395 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 816 transitions. [2022-11-20 11:06:52,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:06:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 816 transitions. [2022-11-20 11:06:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-20 11:06:52,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:52,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:52,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 11:06:52,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:52,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:52,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1968089012, now seen corresponding path program 1 times [2022-11-20 11:06:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:52,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746651369] [2022-11-20 11:06:52,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:06:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-20 11:06:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:06:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 11:06:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:06:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:06:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 11:06:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 11:06:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:06:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 11:06:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 11:06:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 11:06:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 11:06:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 11:06:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 11:06:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 11:06:53,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:53,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746651369] [2022-11-20 11:06:53,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746651369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:53,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454582060] [2022-11-20 11:06:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:53,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:53,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:53,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:53,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:06:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:53,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:06:53,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 11:06:53,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:53,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454582060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:53,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:53,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-20 11:06:53,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133558238] [2022-11-20 11:06:53,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:53,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:06:53,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:53,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:06:53,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:06:53,469 INFO L87 Difference]: Start difference. First operand 532 states and 816 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:06:53,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:53,557 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2022-11-20 11:06:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:06:53,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 170 [2022-11-20 11:06:53,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:53,562 INFO L225 Difference]: With dead ends: 1053 [2022-11-20 11:06:53,562 INFO L226 Difference]: Without dead ends: 534 [2022-11-20 11:06:53,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:06:53,565 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 159 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:53,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2514 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-20 11:06:53,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2022-11-20 11:06:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2022-11-20 11:06:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 822 transitions. [2022-11-20 11:06:53,594 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 822 transitions. Word has length 170 [2022-11-20 11:06:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:53,595 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 822 transitions. [2022-11-20 11:06:53,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:06:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 822 transitions. [2022-11-20 11:06:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-20 11:06:53,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:53,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:53,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:53,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:53,808 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash -881513633, now seen corresponding path program 1 times [2022-11-20 11:06:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:53,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361962544] [2022-11-20 11:06:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:53,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:06:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:06:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 11:06:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 11:06:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:06:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 11:06:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:06:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:06:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 11:06:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:06:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:06:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:06:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:06:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 11:06:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 11:06:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 11:06:54,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:54,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361962544] [2022-11-20 11:06:54,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361962544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:54,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:54,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:06:54,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393521898] [2022-11-20 11:06:54,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:54,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:06:54,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:54,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:06:54,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:06:54,112 INFO L87 Difference]: Start difference. First operand 534 states and 822 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:06:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:57,769 INFO L93 Difference]: Finished difference Result 1287 states and 2003 transitions. [2022-11-20 11:06:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:06:57,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 171 [2022-11-20 11:06:57,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:57,775 INFO L225 Difference]: With dead ends: 1287 [2022-11-20 11:06:57,775 INFO L226 Difference]: Without dead ends: 776 [2022-11-20 11:06:57,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:06:57,778 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1847 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3436 mSolverCounterSat, 754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 4190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 754 IncrementalHoareTripleChecker+Valid, 3436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:57,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 1247 Invalid, 4190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [754 Valid, 3436 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:06:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-11-20 11:06:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 534. [2022-11-20 11:06:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2022-11-20 11:06:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 821 transitions. [2022-11-20 11:06:57,848 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 821 transitions. Word has length 171 [2022-11-20 11:06:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:57,848 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 821 transitions. [2022-11-20 11:06:57,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:06:57,849 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 821 transitions. [2022-11-20 11:06:57,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 11:06:57,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:57,853 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:57,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:06:57,854 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:57,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 209590026, now seen corresponding path program 1 times [2022-11-20 11:06:57,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:57,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118076202] [2022-11-20 11:06:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:57,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:06:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:06:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:06:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:06:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:06:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:06:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 11:06:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 11:06:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 11:06:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 11:06:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:06:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 11:06:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 11:06:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:06:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:06:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:06:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 11:06:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 11:06:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 11:06:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 11:06:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 11:06:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:06:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-20 11:06:58,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:58,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118076202] [2022-11-20 11:06:58,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118076202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:58,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:58,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:06:58,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910114160] [2022-11-20 11:06:58,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:58,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:06:58,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:58,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:06:58,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:06:58,192 INFO L87 Difference]: Start difference. First operand 534 states and 821 transitions. Second operand has 9 states, 8 states have (on average 13.625) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 11:07:01,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:01,747 INFO L93 Difference]: Finished difference Result 1289 states and 2006 transitions. [2022-11-20 11:07:01,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:07:01,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 191 [2022-11-20 11:07:01,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:01,752 INFO L225 Difference]: With dead ends: 1289 [2022-11-20 11:07:01,753 INFO L226 Difference]: Without dead ends: 778 [2022-11-20 11:07:01,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:07:01,756 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1818 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3487 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 3487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:01,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 1246 Invalid, 4238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [751 Valid, 3487 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 11:07:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-20 11:07:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 536. [2022-11-20 11:07:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2022-11-20 11:07:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 824 transitions. [2022-11-20 11:07:01,814 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 824 transitions. Word has length 191 [2022-11-20 11:07:01,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:01,814 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 824 transitions. [2022-11-20 11:07:01,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 11:07:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 824 transitions. [2022-11-20 11:07:01,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 11:07:01,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:01,819 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:01,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:07:01,819 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:01,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1356303388, now seen corresponding path program 1 times [2022-11-20 11:07:01,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:01,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8899441] [2022-11-20 11:07:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:01,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 11:07:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 11:07:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:07:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:07:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:07:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 11:07:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 11:07:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 11:07:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 11:07:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 11:07:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 11:07:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 11:07:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 11:07:02,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:02,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8899441] [2022-11-20 11:07:02,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8899441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:02,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:02,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:07:02,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371800177] [2022-11-20 11:07:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:02,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:07:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:02,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:07:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:07:02,157 INFO L87 Difference]: Start difference. First operand 536 states and 824 transitions. Second operand has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 11:07:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:06,657 INFO L93 Difference]: Finished difference Result 1287 states and 2001 transitions. [2022-11-20 11:07:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:07:06,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 173 [2022-11-20 11:07:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:06,665 INFO L225 Difference]: With dead ends: 1287 [2022-11-20 11:07:06,665 INFO L226 Difference]: Without dead ends: 778 [2022-11-20 11:07:06,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:07:06,668 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 2030 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5595 mSolverCounterSat, 811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 6406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 811 IncrementalHoareTripleChecker+Valid, 5595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:06,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 1628 Invalid, 6406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [811 Valid, 5595 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 11:07:06,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-20 11:07:06,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 536. [2022-11-20 11:07:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2022-11-20 11:07:06,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 823 transitions. [2022-11-20 11:07:06,768 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 823 transitions. Word has length 173 [2022-11-20 11:07:06,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:06,768 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 823 transitions. [2022-11-20 11:07:06,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 11:07:06,769 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 823 transitions. [2022-11-20 11:07:06,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-20 11:07:06,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:06,774 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:06,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:07:06,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1054367269, now seen corresponding path program 2 times [2022-11-20 11:07:06,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:06,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355966535] [2022-11-20 11:07:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:06,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:06,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:07:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 11:07:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:07:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 11:07:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 11:07:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:07:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:07:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:07:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 11:07:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:07:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 11:07:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 11:07:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:07,119 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 11:07:07,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:07,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355966535] [2022-11-20 11:07:07,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355966535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:07,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:07,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:07:07,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988037891] [2022-11-20 11:07:07,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:07,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:07:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:07:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:07:07,122 INFO L87 Difference]: Start difference. First operand 536 states and 823 transitions. Second operand has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 11:07:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:11,429 INFO L93 Difference]: Finished difference Result 1289 states and 2007 transitions. [2022-11-20 11:07:11,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:07:11,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 174 [2022-11-20 11:07:11,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:11,444 INFO L225 Difference]: With dead ends: 1289 [2022-11-20 11:07:11,445 INFO L226 Difference]: Without dead ends: 780 [2022-11-20 11:07:11,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:07:11,449 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 2093 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5524 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 6336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 5524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:11,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 1626 Invalid, 6336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [812 Valid, 5524 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 11:07:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-20 11:07:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 538. [2022-11-20 11:07:11,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 416 states have (on average 1.5432692307692308) internal successors, (642), 424 states have internal predecessors, (642), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2022-11-20 11:07:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2022-11-20 11:07:11,517 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 174 [2022-11-20 11:07:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:11,518 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2022-11-20 11:07:11,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 11:07:11,519 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2022-11-20 11:07:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-20 11:07:11,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:11,523 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:11,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:07:11,524 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:11,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:11,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1326857100, now seen corresponding path program 1 times [2022-11-20 11:07:11,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:11,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465709074] [2022-11-20 11:07:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:11,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:07:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 11:07:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:07:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 11:07:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 11:07:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:07:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 11:07:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:07:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:07:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:07:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 11:07:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 11:07:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 11:07:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-20 11:07:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-20 11:07:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-20 11:07:11,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:11,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465709074] [2022-11-20 11:07:11,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465709074] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:07:11,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807475389] [2022-11-20 11:07:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:11,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:07:11,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:07:11,979 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:07:12,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:07:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:12,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:07:12,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-20 11:07:12,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:07:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-20 11:07:12,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807475389] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:07:12,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:07:12,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-20 11:07:12,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318160700] [2022-11-20 11:07:12,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:07:12,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:07:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:12,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:07:12,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:07:12,598 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 15 states, 14 states have (on average 12.785714285714286) internal successors, (179), 11 states have internal predecessors, (179), 4 states have call successors, (52), 6 states have call predecessors, (52), 3 states have return successors, (42), 3 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-20 11:07:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:18,616 INFO L93 Difference]: Finished difference Result 2198 states and 3645 transitions. [2022-11-20 11:07:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:07:18,616 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.785714285714286) internal successors, (179), 11 states have internal predecessors, (179), 4 states have call successors, (52), 6 states have call predecessors, (52), 3 states have return successors, (42), 3 states have call predecessors, (42), 4 states have call successors, (42) Word has length 194 [2022-11-20 11:07:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:18,626 INFO L225 Difference]: With dead ends: 2198 [2022-11-20 11:07:18,626 INFO L226 Difference]: Without dead ends: 1691 [2022-11-20 11:07:18,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:07:18,629 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 4825 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 6938 mSolverCounterSat, 1929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 8867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1929 IncrementalHoareTripleChecker+Valid, 6938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:18,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4827 Valid, 4202 Invalid, 8867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1929 Valid, 6938 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 11:07:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2022-11-20 11:07:18,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 981. [2022-11-20 11:07:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 780 states have (on average 1.6) internal successors, (1248), 788 states have internal predecessors, (1248), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2022-11-20 11:07:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1603 transitions. [2022-11-20 11:07:18,770 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1603 transitions. Word has length 194 [2022-11-20 11:07:18,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:18,773 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1603 transitions. [2022-11-20 11:07:18,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.785714285714286) internal successors, (179), 11 states have internal predecessors, (179), 4 states have call successors, (52), 6 states have call predecessors, (52), 3 states have return successors, (42), 3 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-20 11:07:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1603 transitions. [2022-11-20 11:07:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 11:07:18,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:18,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:18,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:07:18,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea22c17-c84d-46b2-b383-25c458a3e844/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:07:18,988 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:18,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:18,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1278157061, now seen corresponding path program 1 times [2022-11-20 11:07:18,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:18,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151238647] [2022-11-20 11:07:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:18,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 11:07:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 11:07:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 11:07:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:07:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 11:07:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 11:07:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 11:07:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:07:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 11:07:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 11:07:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 11:07:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 11:07:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 11:07:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 11:07:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 11:07:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-20 11:07:19,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:19,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151238647] [2022-11-20 11:07:19,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151238647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:19,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:19,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628628996] [2022-11-20 11:07:19,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:19,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:19,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:19,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:19,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:19,182 INFO L87 Difference]: Start difference. First operand 981 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:07:21,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:21,977 INFO L93 Difference]: Finished difference Result 2549 states and 4253 transitions. [2022-11-20 11:07:21,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:21,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-11-20 11:07:21,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:21,986 INFO L225 Difference]: With dead ends: 2549 [2022-11-20 11:07:21,986 INFO L226 Difference]: Without dead ends: 1646 [2022-11-20 11:07:21,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:21,991 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1848 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:21,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 1094 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [839 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:07:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-20 11:07:22,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1396. [2022-11-20 11:07:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1116 states have (on average 1.6200716845878136) internal successors, (1808), 1124 states have internal predecessors, (1808), 246 states have call successors, (246), 29 states have call predecessors, (246), 33 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2022-11-20 11:07:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2331 transitions. [2022-11-20 11:07:22,183 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2331 transitions. Word has length 197 [2022-11-20 11:07:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:22,183 INFO L495 AbstractCegarLoop]: Abstraction has 1396 states and 2331 transitions. [2022-11-20 11:07:22,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:07:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2331 transitions. [2022-11-20 11:07:22,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-20 11:07:22,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:22,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:22,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:07:22,194 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:22,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1277436531, now seen corresponding path program 1 times [2022-11-20 11:07:22,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:22,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103282573] [2022-11-20 11:07:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:22,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 11:07:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:07:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:07:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 11:07:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 11:07:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 11:07:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 11:07:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 11:07:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:07:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 11:07:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 11:07:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 11:07:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:07:22,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:22,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103282573] [2022-11-20 11:07:22,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103282573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:22,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:22,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:22,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603960556] [2022-11-20 11:07:22,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:22,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:22,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:22,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:22,358 INFO L87 Difference]: Start difference. First operand 1396 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:25,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:25,280 INFO L93 Difference]: Finished difference Result 3588 states and 6066 transitions. [2022-11-20 11:07:25,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:25,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2022-11-20 11:07:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:25,295 INFO L225 Difference]: With dead ends: 3588 [2022-11-20 11:07:25,295 INFO L226 Difference]: Without dead ends: 2323 [2022-11-20 11:07:25,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:25,301 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1738 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:25,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 1043 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:07:25,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-11-20 11:07:25,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2073. [2022-11-20 11:07:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1674 states have (on average 1.6308243727598566) internal successors, (2730), 1682 states have internal predecessors, (2730), 365 states have call successors, (365), 29 states have call predecessors, (365), 33 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2022-11-20 11:07:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3491 transitions. [2022-11-20 11:07:25,594 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3491 transitions. Word has length 179 [2022-11-20 11:07:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:25,595 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 3491 transitions. [2022-11-20 11:07:25,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3491 transitions. [2022-11-20 11:07:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-20 11:07:25,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:25,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:25,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:07:25,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:25,608 INFO L85 PathProgramCache]: Analyzing trace with hash -919655348, now seen corresponding path program 1 times [2022-11-20 11:07:25,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:25,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619083329] [2022-11-20 11:07:25,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:25,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 11:07:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 11:07:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 11:07:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:07:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:07:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 11:07:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:07:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 11:07:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 11:07:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 11:07:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 11:07:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-20 11:07:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:07:25,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:25,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619083329] [2022-11-20 11:07:25,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619083329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:25,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:25,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:25,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164201452] [2022-11-20 11:07:25,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:25,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:25,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:25,775 INFO L87 Difference]: Start difference. First operand 2073 states and 3491 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:28,736 INFO L93 Difference]: Finished difference Result 5173 states and 8845 transitions. [2022-11-20 11:07:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:28,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2022-11-20 11:07:28,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:28,754 INFO L225 Difference]: With dead ends: 5173 [2022-11-20 11:07:28,754 INFO L226 Difference]: Without dead ends: 3366 [2022-11-20 11:07:28,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:28,761 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1787 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:28,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 1040 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:07:28,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2022-11-20 11:07:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3116. [2022-11-20 11:07:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2555 states have (on average 1.6391389432485324) internal successors, (4188), 2563 states have internal predecessors, (4188), 527 states have call successors, (527), 29 states have call predecessors, (527), 33 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2022-11-20 11:07:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5289 transitions. [2022-11-20 11:07:29,114 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5289 transitions. Word has length 180 [2022-11-20 11:07:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:29,115 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 5289 transitions. [2022-11-20 11:07:29,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5289 transitions. [2022-11-20 11:07:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-20 11:07:29,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:29,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:29,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:07:29,158 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:29,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:29,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2144947820, now seen corresponding path program 1 times [2022-11-20 11:07:29,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:29,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078877549] [2022-11-20 11:07:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:29,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:07:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 11:07:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:07:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 11:07:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 11:07:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 11:07:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 11:07:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 11:07:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 11:07:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 11:07:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-20 11:07:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-20 11:07:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:07:29,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:29,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078877549] [2022-11-20 11:07:29,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078877549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:29,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:29,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:29,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435183828] [2022-11-20 11:07:29,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:29,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:29,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:29,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:29,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:29,311 INFO L87 Difference]: Start difference. First operand 3116 states and 5289 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:32,429 INFO L93 Difference]: Finished difference Result 7687 states and 13260 transitions. [2022-11-20 11:07:32,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:32,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 181 [2022-11-20 11:07:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:32,454 INFO L225 Difference]: With dead ends: 7687 [2022-11-20 11:07:32,454 INFO L226 Difference]: Without dead ends: 5056 [2022-11-20 11:07:32,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:32,464 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1778 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:32,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 1044 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:07:32,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5056 states. [2022-11-20 11:07:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5056 to 4806. [2022-11-20 11:07:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4000 states have (on average 1.645) internal successors, (6580), 4008 states have internal predecessors, (6580), 772 states have call successors, (772), 29 states have call predecessors, (772), 33 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2022-11-20 11:07:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 8197 transitions. [2022-11-20 11:07:33,111 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 8197 transitions. Word has length 181 [2022-11-20 11:07:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:33,111 INFO L495 AbstractCegarLoop]: Abstraction has 4806 states and 8197 transitions. [2022-11-20 11:07:33,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 8197 transitions. [2022-11-20 11:07:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 11:07:33,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:33,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:33,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:07:33,148 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:33,149 INFO L85 PathProgramCache]: Analyzing trace with hash 782698928, now seen corresponding path program 1 times [2022-11-20 11:07:33,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:33,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709823008] [2022-11-20 11:07:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 11:07:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:07:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 11:07:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:07:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:07:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:07:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 11:07:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:07:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:07:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 11:07:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 11:07:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-20 11:07:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:33,310 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:07:33,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:33,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709823008] [2022-11-20 11:07:33,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709823008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:33,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:33,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:33,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817790021] [2022-11-20 11:07:33,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:33,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:33,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:33,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:33,313 INFO L87 Difference]: Start difference. First operand 4806 states and 8197 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:36,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:36,699 INFO L93 Difference]: Finished difference Result 11888 states and 20637 transitions. [2022-11-20 11:07:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2022-11-20 11:07:36,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:36,744 INFO L225 Difference]: With dead ends: 11888 [2022-11-20 11:07:36,744 INFO L226 Difference]: Without dead ends: 7899 [2022-11-20 11:07:36,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:36,759 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1792 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:36,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1054 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:07:36,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7899 states. [2022-11-20 11:07:37,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7899 to 7649. [2022-11-20 11:07:37,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 6350 states have (on average 1.6439370078740156) internal successors, (10439), 6358 states have internal predecessors, (10439), 1265 states have call successors, (1265), 29 states have call predecessors, (1265), 33 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2022-11-20 11:07:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 13086 transitions. [2022-11-20 11:07:37,744 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 13086 transitions. Word has length 182 [2022-11-20 11:07:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:37,745 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 13086 transitions. [2022-11-20 11:07:37,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 13086 transitions. [2022-11-20 11:07:37,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-20 11:07:37,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:37,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:37,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:07:37,790 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:37,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1663322541, now seen corresponding path program 1 times [2022-11-20 11:07:37,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:37,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537096985] [2022-11-20 11:07:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:37,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 11:07:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:07:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 11:07:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 11:07:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:07:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:07:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 11:07:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 11:07:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:07:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 11:07:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 11:07:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 11:07:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 11:07:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 11:07:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-20 11:07:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-20 11:07:37,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:37,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537096985] [2022-11-20 11:07:37,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537096985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:37,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:37,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:37,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737575070] [2022-11-20 11:07:37,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:37,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:37,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:37,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:37,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:37,975 INFO L87 Difference]: Start difference. First operand 7649 states and 13086 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:07:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:41,773 INFO L93 Difference]: Finished difference Result 19503 states and 33913 transitions. [2022-11-20 11:07:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:41,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 202 [2022-11-20 11:07:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:41,840 INFO L225 Difference]: With dead ends: 19503 [2022-11-20 11:07:41,841 INFO L226 Difference]: Without dead ends: 13073 [2022-11-20 11:07:41,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:41,862 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1858 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:41,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1877 Valid, 1076 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:07:41,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13073 states. [2022-11-20 11:07:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13073 to 12823. [2022-11-20 11:07:43,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12823 states, 10702 states have (on average 1.6447393010652214) internal successors, (17602), 10710 states have internal predecessors, (17602), 2087 states have call successors, (2087), 29 states have call predecessors, (2087), 33 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2022-11-20 11:07:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 21971 transitions. [2022-11-20 11:07:43,180 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 21971 transitions. Word has length 202 [2022-11-20 11:07:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:43,181 INFO L495 AbstractCegarLoop]: Abstraction has 12823 states and 21971 transitions. [2022-11-20 11:07:43,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:07:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 21971 transitions. [2022-11-20 11:07:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 11:07:43,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:43,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:43,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:07:43,236 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:43,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:43,237 INFO L85 PathProgramCache]: Analyzing trace with hash 839230754, now seen corresponding path program 1 times [2022-11-20 11:07:43,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:43,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65348934] [2022-11-20 11:07:43,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:43,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:07:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:07:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:07:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 11:07:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 11:07:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 11:07:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 11:07:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 11:07:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 11:07:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 11:07:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 11:07:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 11:07:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:07:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:43,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65348934] [2022-11-20 11:07:43,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65348934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:43,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:43,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:43,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635434751] [2022-11-20 11:07:43,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:43,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:43,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:43,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:43,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:43,405 INFO L87 Difference]: Start difference. First operand 12823 states and 21971 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:48,565 INFO L93 Difference]: Finished difference Result 30986 states and 53613 transitions. [2022-11-20 11:07:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:48,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 184 [2022-11-20 11:07:48,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:48,661 INFO L225 Difference]: With dead ends: 30986 [2022-11-20 11:07:48,661 INFO L226 Difference]: Without dead ends: 20386 [2022-11-20 11:07:48,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:48,693 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1906 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:48,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1926 Valid, 1018 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:07:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20386 states. [2022-11-20 11:07:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20386 to 20136. [2022-11-20 11:07:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20136 states, 16812 states have (on average 1.6207470854151795) internal successors, (27248), 16820 states have internal predecessors, (27248), 3290 states have call successors, (3290), 29 states have call predecessors, (3290), 33 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2022-11-20 11:07:50,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 34167 transitions. [2022-11-20 11:07:50,974 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 34167 transitions. Word has length 184 [2022-11-20 11:07:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:50,975 INFO L495 AbstractCegarLoop]: Abstraction has 20136 states and 34167 transitions. [2022-11-20 11:07:50,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 34167 transitions. [2022-11-20 11:07:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-20 11:07:51,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:51,054 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:51,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:07:51,055 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash 185128135, now seen corresponding path program 1 times [2022-11-20 11:07:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:51,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534510286] [2022-11-20 11:07:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:07:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:07:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:07:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:07:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:07:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:07:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 11:07:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:07:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:07:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:07:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 11:07:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:07:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 11:07:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:07:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 11:07:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 11:07:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 11:07:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 11:07:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:07:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:07:51,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:51,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534510286] [2022-11-20 11:07:51,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534510286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:51,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:51,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:51,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953061367] [2022-11-20 11:07:51,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:51,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:51,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:51,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:51,259 INFO L87 Difference]: Start difference. First operand 20136 states and 34167 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:07:57,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:57,273 INFO L93 Difference]: Finished difference Result 53428 states and 92147 transitions. [2022-11-20 11:07:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:07:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 185 [2022-11-20 11:07:57,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:57,446 INFO L225 Difference]: With dead ends: 53428 [2022-11-20 11:07:57,447 INFO L226 Difference]: Without dead ends: 36192 [2022-11-20 11:07:57,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:57,505 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1845 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:57,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 1043 Invalid, 2840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:07:57,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36192 states. [2022-11-20 11:08:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36192 to 35942. [2022-11-20 11:08:02,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35942 states, 30168 states have (on average 1.61793953858393) internal successors, (48810), 30176 states have internal predecessors, (48810), 5740 states have call successors, (5740), 29 states have call predecessors, (5740), 33 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2022-11-20 11:08:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35942 states to 35942 states and 60903 transitions. [2022-11-20 11:08:02,309 INFO L78 Accepts]: Start accepts. Automaton has 35942 states and 60903 transitions. Word has length 185 [2022-11-20 11:08:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:02,310 INFO L495 AbstractCegarLoop]: Abstraction has 35942 states and 60903 transitions. [2022-11-20 11:08:02,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:08:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 35942 states and 60903 transitions. [2022-11-20 11:08:02,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 11:08:02,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:02,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:02,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:08:02,649 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:02,649 INFO L85 PathProgramCache]: Analyzing trace with hash -923201843, now seen corresponding path program 1 times [2022-11-20 11:08:02,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:02,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559417426] [2022-11-20 11:08:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:02,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:08:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:08:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 11:08:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:08:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 11:08:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:08:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 11:08:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 11:08:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:08:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 11:08:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 11:08:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:08:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 11:08:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:08:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:08:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 11:08:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 11:08:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 11:08:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 11:08:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:08:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-20 11:08:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-20 11:08:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:08:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-20 11:08:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:02,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559417426] [2022-11-20 11:08:02,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559417426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:02,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:02,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:08:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641492899] [2022-11-20 11:08:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:02,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:08:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:08:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:08:02,815 INFO L87 Difference]: Start difference. First operand 35942 states and 60903 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:08:11,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:11,626 INFO L93 Difference]: Finished difference Result 98275 states and 168706 transitions. [2022-11-20 11:08:11,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:08:11,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 205 [2022-11-20 11:08:11,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:11,937 INFO L225 Difference]: With dead ends: 98275 [2022-11-20 11:08:11,937 INFO L226 Difference]: Without dead ends: 66189 [2022-11-20 11:08:12,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:08:12,024 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1735 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:12,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 1073 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:08:12,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66189 states. [2022-11-20 11:08:19,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66189 to 65939. [2022-11-20 11:08:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65939 states, 55652 states have (on average 1.6140120750377345) internal successors, (89823), 55660 states have internal predecessors, (89823), 10253 states have call successors, (10253), 29 states have call predecessors, (10253), 33 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2022-11-20 11:08:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65939 states to 65939 states and 111474 transitions. [2022-11-20 11:08:19,531 INFO L78 Accepts]: Start accepts. Automaton has 65939 states and 111474 transitions. Word has length 205 [2022-11-20 11:08:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:19,532 INFO L495 AbstractCegarLoop]: Abstraction has 65939 states and 111474 transitions. [2022-11-20 11:08:19,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:08:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 65939 states and 111474 transitions.