./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/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_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/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_f3dc648a-dfe5-429f-886e-bed59bec54f0/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 d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf --- 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 12:40:08,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:40:08,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:40:08,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:40:08,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:40:08,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:40:08,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:40:08,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:40:08,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:40:08,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:40:08,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:40:08,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:40:08,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:40:08,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:40:08,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:40:08,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:40:08,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:40:08,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:40:08,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:40:08,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:40:08,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:40:08,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:40:08,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:40:08,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:40:08,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:40:08,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:40:08,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:40:08,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:40:08,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:40:08,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:40:08,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:40:08,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:40:08,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:40:08,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:40:08,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:40:08,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:40:08,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:40:08,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:40:08,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:40:08,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:40:08,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:40:08,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:40:08,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:40:08,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:40:08,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:40:08,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:40:08,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:40:08,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:40:08,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:40:08,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:40:08,993 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:40:08,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:40:08,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:40:08,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:40:08,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:40:08,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:40:08,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:40:08,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:40:08,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:40:08,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:40:08,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:40:08,997 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:40:08,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:40:08,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:40:08,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:40:08,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:40:08,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:40:08,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:40:08,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:40:09,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:40:09,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:40:09,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:40:09,001 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:40:09,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:40:09,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:40:09,001 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_f3dc648a-dfe5-429f-886e-bed59bec54f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf [2022-11-20 12:40:09,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:40:09,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:40:09,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:40:09,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:40:09,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:40:09,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-11-20 12:40:12,477 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:40:12,866 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:40:12,871 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-11-20 12:40:12,902 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/data/977bf5f64/ec7214a7268e4be8b1351964ca0477de/FLAGc0ed26894 [2022-11-20 12:40:12,922 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/data/977bf5f64/ec7214a7268e4be8b1351964ca0477de [2022-11-20 12:40:12,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:40:12,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:40:12,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:12,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:40:12,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:40:12,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:12" (1/1) ... [2022-11-20 12:40:12,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4252a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:12, skipping insertion in model container [2022-11-20 12:40:12,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:12" (1/1) ... [2022-11-20 12:40:12,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:40:13,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:40:13,733 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_f3dc648a-dfe5-429f-886e-bed59bec54f0/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c[56376,56389] [2022-11-20 12:40:13,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:13,823 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:40:13,937 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_f3dc648a-dfe5-429f-886e-bed59bec54f0/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c[56376,56389] [2022-11-20 12:40:13,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:13,983 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:40:13,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13 WrapperNode [2022-11-20 12:40:13,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:13,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:13,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:40:13,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:40:13,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,119 INFO L138 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 942 [2022-11-20 12:40:14,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:14,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:40:14,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:40:14,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:40:14,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,173 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:40:14,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:40:14,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:40:14,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:40:14,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (1/1) ... [2022-11-20 12:40:14,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:40:14,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:14,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:40:14,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 12:40:14,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 12:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 12:40:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 12:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 12:40:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 12:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 12:40:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 12:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 12:40:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 12:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 12:40:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 12:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-20 12:40:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-20 12:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 12:40:14,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 12:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 12:40:14,292 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 12:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 12:40:14,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 12:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 12:40:14,293 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 12:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 12:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 12:40:14,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 12:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 12:40:14,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 12:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 12:40:14,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 12:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 12:40:14,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 12:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 12:40:14,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 12:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 12:40:14,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 12:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 12:40:14,295 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 12:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 12:40:14,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 12:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 12:40:14,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 12:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 12:40:14,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 12:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 12:40:14,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 12:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 12:40:14,297 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 12:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 12:40:14,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 12:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:40:14,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:40:14,513 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:40:14,530 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:40:15,625 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:40:15,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:40:15,637 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:40:15,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:15 BoogieIcfgContainer [2022-11-20 12:40:15,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:40:15,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:40:15,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:40:15,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:40:15,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:40:12" (1/3) ... [2022-11-20 12:40:15,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010b1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:40:15, skipping insertion in model container [2022-11-20 12:40:15,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:13" (2/3) ... [2022-11-20 12:40:15,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010b1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:40:15, skipping insertion in model container [2022-11-20 12:40:15,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:15" (3/3) ... [2022-11-20 12:40:15,650 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2022-11-20 12:40:15,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:40:15,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:40:15,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:40:15,767 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;@407cdf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:40:15,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:40:15,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 293 states have (on average 1.5665529010238908) internal successors, (459), 298 states have internal predecessors, (459), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-20 12:40:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-20 12:40:15,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:15,820 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:15,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:15,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1319087550, now seen corresponding path program 1 times [2022-11-20 12:40:15,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:15,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268634377] [2022-11-20 12:40:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 12:40:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 12:40:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:40:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:40:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 12:40:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 12:40:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 12:40:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:40:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 12:40:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 12:40:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 12:40:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 12:40:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 12:40:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 12:40:17,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:17,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268634377] [2022-11-20 12:40:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268634377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:40:17,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837548250] [2022-11-20 12:40:17,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:17,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:17,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:17,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:40:17,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:40:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:17,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:40:17,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 12:40:17,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:17,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837548250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:40:17,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-20 12:40:17,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977004750] [2022-11-20 12:40:17,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:17,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:40:17,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:17,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:40:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:40:17,565 INFO L87 Difference]: Start difference. First operand has 377 states, 293 states have (on average 1.5665529010238908) internal successors, (459), 298 states have internal predecessors, (459), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:17,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:17,682 INFO L93 Difference]: Finished difference Result 561 states and 840 transitions. [2022-11-20 12:40:17,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:40:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2022-11-20 12:40:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:17,707 INFO L225 Difference]: With dead ends: 561 [2022-11-20 12:40:17,707 INFO L226 Difference]: Without dead ends: 370 [2022-11-20 12:40:17,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 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 12:40:17,721 INFO L413 NwaCegarLoop]: 571 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, 571 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 12:40:17,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:40:17,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-20 12:40:17,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-20 12:40:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 287 states have (on average 1.5609756097560976) internal successors, (448), 291 states have internal predecessors, (448), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-20 12:40:17,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 563 transitions. [2022-11-20 12:40:17,809 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 563 transitions. Word has length 123 [2022-11-20 12:40:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:17,824 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 563 transitions. [2022-11-20 12:40:17,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 563 transitions. [2022-11-20 12:40:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 12:40:17,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:17,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:17,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:40:18,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 12:40:18,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:18,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:18,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2065856411, now seen corresponding path program 1 times [2022-11-20 12:40:18,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:18,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827835453] [2022-11-20 12:40:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:18,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 12:40:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 12:40:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:40:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:40:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 12:40:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 12:40:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 12:40:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 12:40:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:40:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:40:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:40:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 12:40:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 12:40:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 12:40:18,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:18,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827835453] [2022-11-20 12:40:18,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827835453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:40:18,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052162752] [2022-11-20 12:40:18,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:18,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:18,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:18,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:40:18,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:40:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:40:18,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:18,920 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 12:40:18,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:18,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052162752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:18,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:40:18,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 12:40:18,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803791511] [2022-11-20 12:40:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:18,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:18,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:18,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:18,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:40:18,925 INFO L87 Difference]: Start difference. First operand 370 states and 563 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:18,981 INFO L93 Difference]: Finished difference Result 551 states and 818 transitions. [2022-11-20 12:40:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:18,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2022-11-20 12:40:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:18,987 INFO L225 Difference]: With dead ends: 551 [2022-11-20 12:40:18,987 INFO L226 Difference]: Without dead ends: 373 [2022-11-20 12:40:18,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 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 12:40:18,994 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 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 12:40:18,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:40:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-20 12:40:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 372. [2022-11-20 12:40:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 289 states have (on average 1.5570934256055364) internal successors, (450), 293 states have internal predecessors, (450), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-20 12:40:19,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 565 transitions. [2022-11-20 12:40:19,053 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 565 transitions. Word has length 124 [2022-11-20 12:40:19,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:19,055 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 565 transitions. [2022-11-20 12:40:19,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 565 transitions. [2022-11-20 12:40:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 12:40:19,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:19,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:19,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:40:19,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:19,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:19,268 INFO L85 PathProgramCache]: Analyzing trace with hash -311582633, now seen corresponding path program 1 times [2022-11-20 12:40:19,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:19,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614549783] [2022-11-20 12:40:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:19,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 12:40:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 12:40:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:40:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 12:40:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 12:40:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 12:40:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:40:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:40:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:40:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 12:40:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:40:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 12:40:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:40:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:40:19,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:19,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614549783] [2022-11-20 12:40:19,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614549783] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:40:19,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731506541] [2022-11-20 12:40:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:19,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:19,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:19,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:40:19,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:40:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:19,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:40:19,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 12:40:20,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:20,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731506541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:20,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:40:20,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 12:40:20,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863955745] [2022-11-20 12:40:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:20,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:20,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:20,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:40:20,018 INFO L87 Difference]: Start difference. First operand 372 states and 565 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:20,058 INFO L93 Difference]: Finished difference Result 792 states and 1222 transitions. [2022-11-20 12:40:20,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:20,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-11-20 12:40:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:20,062 INFO L225 Difference]: With dead ends: 792 [2022-11-20 12:40:20,062 INFO L226 Difference]: Without dead ends: 447 [2022-11-20 12:40:20,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:40:20,065 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 134 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1100 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 12:40:20,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1100 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:40:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-20 12:40:20,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2022-11-20 12:40:20,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 342 states have (on average 1.5760233918128654) internal successors, (539), 346 states have internal predecessors, (539), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-20 12:40:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 682 transitions. [2022-11-20 12:40:20,098 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 682 transitions. Word has length 133 [2022-11-20 12:40:20,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:20,099 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 682 transitions. [2022-11-20 12:40:20,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 682 transitions. [2022-11-20 12:40:20,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 12:40:20,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:20,103 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:20,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:40:20,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:20,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:20,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1676584718, now seen corresponding path program 1 times [2022-11-20 12:40:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:20,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148411826] [2022-11-20 12:40:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:20,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 12:40:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 12:40:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 12:40:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:40:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 12:40:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 12:40:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 12:40:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:40:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 12:40:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 12:40:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 12:40:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 12:40:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:40:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:40:20,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:20,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148411826] [2022-11-20 12:40:20,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148411826] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:40:20,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12612465] [2022-11-20 12:40:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:20,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:20,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:20,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:40:20,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:40:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:40:21,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 12:40:21,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:21,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12612465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:21,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:40:21,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-20 12:40:21,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437278733] [2022-11-20 12:40:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:21,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:40:21,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:40:21,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:40:21,150 INFO L87 Difference]: Start difference. First operand 439 states and 682 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 12:40:21,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:21,236 INFO L93 Difference]: Finished difference Result 869 states and 1354 transitions. [2022-11-20 12:40:21,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:40:21,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2022-11-20 12:40:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:21,240 INFO L225 Difference]: With dead ends: 869 [2022-11-20 12:40:21,240 INFO L226 Difference]: Without dead ends: 441 [2022-11-20 12:40:21,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:40:21,243 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 152 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2041 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 12:40:21,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2041 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:40:21,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-20 12:40:21,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-11-20 12:40:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 343 states have (on average 1.5743440233236152) internal successors, (540), 348 states have internal predecessors, (540), 72 states have call successors, (72), 24 states have call predecessors, (72), 25 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2022-11-20 12:40:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 685 transitions. [2022-11-20 12:40:21,270 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 685 transitions. Word has length 134 [2022-11-20 12:40:21,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:21,271 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 685 transitions. [2022-11-20 12:40:21,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 12:40:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 685 transitions. [2022-11-20 12:40:21,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 12:40:21,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:21,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:21,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:40:21,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:21,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:21,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:21,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1847707309, now seen corresponding path program 1 times [2022-11-20 12:40:21,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:21,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308833540] [2022-11-20 12:40:21,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:21,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-20 12:40:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 12:40:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 12:40:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 12:40:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 12:40:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 12:40:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 12:40:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:40:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 12:40:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 12:40:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 12:40:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 12:40:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:40:21,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:21,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308833540] [2022-11-20 12:40:21,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308833540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:40:21,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669124307] [2022-11-20 12:40:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:21,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:21,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:21,872 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:40:21,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:40:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:40:22,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 12:40:22,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:22,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669124307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:22,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:40:22,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-20 12:40:22,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244751944] [2022-11-20 12:40:22,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:22,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:40:22,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:22,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:40:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:40:22,333 INFO L87 Difference]: Start difference. First operand 441 states and 685 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 12:40:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:22,436 INFO L93 Difference]: Finished difference Result 871 states and 1359 transitions. [2022-11-20 12:40:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:40:22,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2022-11-20 12:40:22,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:22,440 INFO L225 Difference]: With dead ends: 871 [2022-11-20 12:40:22,441 INFO L226 Difference]: Without dead ends: 443 [2022-11-20 12:40:22,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 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 12:40:22,443 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 151 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2030 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 12:40:22,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2030 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:40:22,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-11-20 12:40:22,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-11-20 12:40:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 344 states have (on average 1.572674418604651) internal successors, (541), 350 states have internal predecessors, (541), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-11-20 12:40:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 691 transitions. [2022-11-20 12:40:22,472 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 691 transitions. Word has length 135 [2022-11-20 12:40:22,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:22,474 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 691 transitions. [2022-11-20 12:40:22,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 12:40:22,474 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 691 transitions. [2022-11-20 12:40:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 12:40:22,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:22,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:22,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-20 12:40:22,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:22,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -34517267, now seen corresponding path program 1 times [2022-11-20 12:40:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:22,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89639625] [2022-11-20 12:40:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 12:40:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 12:40:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 12:40:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:40:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 12:40:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 12:40:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 12:40:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:40:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 12:40:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 12:40:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 12:40:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:40:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:40:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 12:40:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:23,047 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:40:23,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:23,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89639625] [2022-11-20 12:40:23,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89639625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:23,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:23,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:40:23,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564062887] [2022-11-20 12:40:23,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:23,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:40:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:40:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:40:23,053 INFO L87 Difference]: Start difference. First operand 443 states and 691 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 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 12:40:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:25,775 INFO L93 Difference]: Finished difference Result 976 states and 1544 transitions. [2022-11-20 12:40:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:25,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 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 155 [2022-11-20 12:40:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:25,789 INFO L225 Difference]: With dead ends: 976 [2022-11-20 12:40:25,789 INFO L226 Difference]: Without dead ends: 556 [2022-11-20 12:40:25,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 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 12:40:25,794 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1355 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:25,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1191 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:40:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-11-20 12:40:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 443. [2022-11-20 12:40:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 344 states have (on average 1.572674418604651) internal successors, (541), 350 states have internal predecessors, (541), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2022-11-20 12:40:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 690 transitions. [2022-11-20 12:40:25,879 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 690 transitions. Word has length 155 [2022-11-20 12:40:25,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:25,880 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 690 transitions. [2022-11-20 12:40:25,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 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 12:40:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 690 transitions. [2022-11-20 12:40:25,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 12:40:25,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:25,886 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:25,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:40:25,886 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:25,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:25,887 INFO L85 PathProgramCache]: Analyzing trace with hash 820017456, now seen corresponding path program 2 times [2022-11-20 12:40:25,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:25,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338815930] [2022-11-20 12:40:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:25,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 12:40:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 12:40:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:40:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:40:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:40:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 12:40:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 12:40:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 12:40:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 12:40:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:40:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:40:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 12:40:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:40:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:40:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:40:26,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:26,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338815930] [2022-11-20 12:40:26,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338815930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:26,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:26,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:40:26,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752773963] [2022-11-20 12:40:26,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:26,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:40:26,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:26,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:40:26,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:40:26,260 INFO L87 Difference]: Start difference. First operand 443 states and 690 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 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 12:40:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:28,883 INFO L93 Difference]: Finished difference Result 978 states and 1547 transitions. [2022-11-20 12:40:28,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:40:28,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 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 156 [2022-11-20 12:40:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:28,888 INFO L225 Difference]: With dead ends: 978 [2022-11-20 12:40:28,888 INFO L226 Difference]: Without dead ends: 558 [2022-11-20 12:40:28,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 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 12:40:28,891 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1341 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:28,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1192 Invalid, 2888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:40:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-20 12:40:28,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 445. [2022-11-20 12:40:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 345 states have (on average 1.5710144927536231) internal successors, (542), 352 states have internal predecessors, (542), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2022-11-20 12:40:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 693 transitions. [2022-11-20 12:40:28,940 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 693 transitions. Word has length 156 [2022-11-20 12:40:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:28,940 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 693 transitions. [2022-11-20 12:40:28,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 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 12:40:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 693 transitions. [2022-11-20 12:40:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 12:40:28,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:28,944 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:28,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:40:28,945 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1329272280, now seen corresponding path program 1 times [2022-11-20 12:40:28,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:28,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780327937] [2022-11-20 12:40:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 12:40:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:40:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 12:40:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:40:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 12:40:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:40:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 12:40:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 12:40:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 12:40:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 12:40:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:40:29,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:29,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780327937] [2022-11-20 12:40:29,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780327937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:29,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:29,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:40:29,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147224343] [2022-11-20 12:40:29,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:29,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:40:29,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:40:29,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:40:29,299 INFO L87 Difference]: Start difference. First operand 445 states and 693 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 12:40:32,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:32,680 INFO L93 Difference]: Finished difference Result 976 states and 1542 transitions. [2022-11-20 12:40:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:40:32,681 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2022-11-20 12:40:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:32,685 INFO L225 Difference]: With dead ends: 976 [2022-11-20 12:40:32,685 INFO L226 Difference]: Without dead ends: 558 [2022-11-20 12:40:32,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 12:40:32,688 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1500 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3954 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 3954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:32,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1557 Invalid, 4492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [538 Valid, 3954 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 12:40:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-20 12:40:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 445. [2022-11-20 12:40:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 345 states have (on average 1.5710144927536231) internal successors, (542), 352 states have internal predecessors, (542), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-11-20 12:40:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 692 transitions. [2022-11-20 12:40:32,732 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 692 transitions. Word has length 138 [2022-11-20 12:40:32,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:32,733 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 692 transitions. [2022-11-20 12:40:32,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 12:40:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 692 transitions. [2022-11-20 12:40:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 12:40:32,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:32,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:32,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:40:32,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1553991790, now seen corresponding path program 2 times [2022-11-20 12:40:32,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:32,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108177253] [2022-11-20 12:40:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:32,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:32,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:32,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 12:40:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 12:40:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 12:40:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 12:40:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:40:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:40:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 12:40:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 12:40:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:40:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 12:40:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:40:33,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:33,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108177253] [2022-11-20 12:40:33,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108177253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:33,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:33,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:40:33,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068781] [2022-11-20 12:40:33,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:33,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:40:33,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:33,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:40:33,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:40:33,086 INFO L87 Difference]: Start difference. First operand 445 states and 692 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 12:40:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:36,247 INFO L93 Difference]: Finished difference Result 978 states and 1548 transitions. [2022-11-20 12:40:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:40:36,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 139 [2022-11-20 12:40:36,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:36,254 INFO L225 Difference]: With dead ends: 978 [2022-11-20 12:40:36,254 INFO L226 Difference]: Without dead ends: 560 [2022-11-20 12:40:36,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 12:40:36,261 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1494 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4026 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 4026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:36,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1557 Invalid, 4545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 4026 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 12:40:36,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-20 12:40:36,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 447. [2022-11-20 12:40:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 346 states have (on average 1.569364161849711) internal successors, (543), 354 states have internal predecessors, (543), 72 states have call successors, (72), 24 states have call predecessors, (72), 28 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-11-20 12:40:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 698 transitions. [2022-11-20 12:40:36,309 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 698 transitions. Word has length 139 [2022-11-20 12:40:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:36,310 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 698 transitions. [2022-11-20 12:40:36,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 12:40:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 698 transitions. [2022-11-20 12:40:36,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-20 12:40:36,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:36,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:36,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:40:36,315 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1990999639, now seen corresponding path program 1 times [2022-11-20 12:40:36,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:36,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729414829] [2022-11-20 12:40:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:36,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 12:40:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:40:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 12:40:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 12:40:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:40:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:40:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 12:40:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 12:40:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:40:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 12:40:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:40:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 12:40:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 12:40:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-20 12:40:36,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:36,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729414829] [2022-11-20 12:40:36,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729414829] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:40:36,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665565715] [2022-11-20 12:40:36,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:36,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:40:36,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:36,659 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:40:36,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:40:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:37,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:40:37,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:40:37,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:40:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:40:37,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665565715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:40:37,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:40:37,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-20 12:40:37,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587239319] [2022-11-20 12:40:37,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:40:37,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:40:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:40:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:40:37,195 INFO L87 Difference]: Start difference. First operand 447 states and 698 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-11-20 12:40:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:42,192 INFO L93 Difference]: Finished difference Result 1837 states and 3106 transitions. [2022-11-20 12:40:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 12:40:42,199 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) Word has length 159 [2022-11-20 12:40:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:42,211 INFO L225 Difference]: With dead ends: 1837 [2022-11-20 12:40:42,211 INFO L226 Difference]: Without dead ends: 1421 [2022-11-20 12:40:42,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-20 12:40:42,215 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 3663 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 5674 mSolverCounterSat, 1336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 7010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1336 IncrementalHoareTripleChecker+Valid, 5674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:42,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3665 Valid, 4014 Invalid, 7010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1336 Valid, 5674 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 12:40:42,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-11-20 12:40:42,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 865. [2022-11-20 12:40:42,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 685 states have (on average 1.618978102189781) internal successors, (1109), 693 states have internal predecessors, (1109), 151 states have call successors, (151), 24 states have call predecessors, (151), 28 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2022-11-20 12:40:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1432 transitions. [2022-11-20 12:40:42,359 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1432 transitions. Word has length 159 [2022-11-20 12:40:42,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:42,360 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1432 transitions. [2022-11-20 12:40:42,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-11-20 12:40:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1432 transitions. [2022-11-20 12:40:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 12:40:42,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:42,366 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:42,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:40:42,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3dc648a-dfe5-429f-886e-bed59bec54f0/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 12:40:42,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash -159108113, now seen corresponding path program 1 times [2022-11-20 12:40:42,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:42,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80326748] [2022-11-20 12:40:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 12:40:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 12:40:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 12:40:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:40:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 12:40:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 12:40:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 12:40:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 12:40:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:40:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:40:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:40:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80326748] [2022-11-20 12:40:42,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80326748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:42,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:42,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:40:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126796671] [2022-11-20 12:40:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:42,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:40:42,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:40:42,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:40:42,740 INFO L87 Difference]: Start difference. First operand 865 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:44,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:44,795 INFO L93 Difference]: Finished difference Result 2163 states and 3674 transitions. [2022-11-20 12:40:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:40:44,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-11-20 12:40:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:44,804 INFO L225 Difference]: With dead ends: 2163 [2022-11-20 12:40:44,805 INFO L226 Difference]: Without dead ends: 1376 [2022-11-20 12:40:44,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:40:44,809 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1331 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:44,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 1042 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:40:44,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2022-11-20 12:40:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1255. [2022-11-20 12:40:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 996 states have (on average 1.6355421686746987) internal successors, (1629), 1004 states have internal predecessors, (1629), 230 states have call successors, (230), 24 states have call predecessors, (230), 28 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2022-11-20 12:40:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 2120 transitions. [2022-11-20 12:40:44,989 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 2120 transitions. Word has length 143 [2022-11-20 12:40:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:44,989 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 2120 transitions. [2022-11-20 12:40:44,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 2120 transitions. [2022-11-20 12:40:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 12:40:45,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:45,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:45,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:40:45,005 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:45,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash -658341585, now seen corresponding path program 1 times [2022-11-20 12:40:45,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:45,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435769399] [2022-11-20 12:40:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:45,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 12:40:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 12:40:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 12:40:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:40:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:40:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 12:40:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 12:40:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-20 12:40:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 12:40:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 12:40:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:40:45,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:45,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435769399] [2022-11-20 12:40:45,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435769399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:45,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:45,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:40:45,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295941691] [2022-11-20 12:40:45,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:45,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:40:45,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:40:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:40:45,156 INFO L87 Difference]: Start difference. First operand 1255 states and 2120 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:47,204 INFO L93 Difference]: Finished difference Result 3137 states and 5383 transitions. [2022-11-20 12:40:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:40:47,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-11-20 12:40:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:47,219 INFO L225 Difference]: With dead ends: 3137 [2022-11-20 12:40:47,219 INFO L226 Difference]: Without dead ends: 2013 [2022-11-20 12:40:47,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:40:47,225 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1330 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:47,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 995 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:40:47,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-11-20 12:40:47,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1892. [2022-11-20 12:40:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1514 states have (on average 1.6426684280052841) internal successors, (2487), 1522 states have internal predecessors, (2487), 349 states have call successors, (349), 24 states have call predecessors, (349), 28 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2022-11-20 12:40:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 3216 transitions. [2022-11-20 12:40:47,515 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 3216 transitions. Word has length 144 [2022-11-20 12:40:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:47,516 INFO L495 AbstractCegarLoop]: Abstraction has 1892 states and 3216 transitions. [2022-11-20 12:40:47,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 3216 transitions. [2022-11-20 12:40:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 12:40:47,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:47,531 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:47,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:40:47,532 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1798639171, now seen corresponding path program 1 times [2022-11-20 12:40:47,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:47,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587586923] [2022-11-20 12:40:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:47,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:40:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:40:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:40:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:40:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:40:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 12:40:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 12:40:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:40:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 12:40:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 12:40:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,684 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:40:47,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:47,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587586923] [2022-11-20 12:40:47,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587586923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:47,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:47,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:40:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124708497] [2022-11-20 12:40:47,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:47,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:40:47,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:47,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:40:47,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:40:47,688 INFO L87 Difference]: Start difference. First operand 1892 states and 3216 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:49,988 INFO L93 Difference]: Finished difference Result 4617 states and 7994 transitions. [2022-11-20 12:40:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:40:49,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2022-11-20 12:40:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:50,006 INFO L225 Difference]: With dead ends: 4617 [2022-11-20 12:40:50,006 INFO L226 Difference]: Without dead ends: 2991 [2022-11-20 12:40:50,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:40:50,013 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1325 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:50,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 996 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 12:40:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-11-20 12:40:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2870. [2022-11-20 12:40:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2330 states have (on average 1.6484978540772532) internal successors, (3841), 2338 states have internal predecessors, (3841), 511 states have call successors, (511), 24 states have call predecessors, (511), 28 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2022-11-20 12:40:50,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 4910 transitions. [2022-11-20 12:40:50,404 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 4910 transitions. Word has length 145 [2022-11-20 12:40:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:50,405 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 4910 transitions. [2022-11-20 12:40:50,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:40:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 4910 transitions. [2022-11-20 12:40:50,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 12:40:50,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:50,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:50,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:40:50,426 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1729968346, now seen corresponding path program 1 times [2022-11-20 12:40:50,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:50,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182364214] [2022-11-20 12:40:50,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 12:40:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:40:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 12:40:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 12:40:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 12:40:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 12:40:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 12:40:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 12:40:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 12:40:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 12:40:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 12:40:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 12:40:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 12:40:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:40:50,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:50,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182364214] [2022-11-20 12:40:50,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182364214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:50,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:50,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:40:50,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806290717] [2022-11-20 12:40:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:50,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:40:50,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:40:50,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:40:50,622 INFO L87 Difference]: Start difference. First operand 2870 states and 4910 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:40:52,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:52,990 INFO L93 Difference]: Finished difference Result 6956 states and 12129 transitions. [2022-11-20 12:40:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:40:52,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2022-11-20 12:40:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:53,019 INFO L225 Difference]: With dead ends: 6956 [2022-11-20 12:40:53,019 INFO L226 Difference]: Without dead ends: 4571 [2022-11-20 12:40:53,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:40:53,031 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1319 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:53,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 995 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:40:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2022-11-20 12:40:53,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4450. [2022-11-20 12:40:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 3665 states have (on average 1.6526603001364257) internal successors, (6057), 3673 states have internal predecessors, (6057), 756 states have call successors, (756), 24 states have call predecessors, (756), 28 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2022-11-20 12:40:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 7642 transitions. [2022-11-20 12:40:53,636 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 7642 transitions. Word has length 165 [2022-11-20 12:40:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:53,636 INFO L495 AbstractCegarLoop]: Abstraction has 4450 states and 7642 transitions. [2022-11-20 12:40:53,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:40:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 7642 transitions. [2022-11-20 12:40:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 12:40:53,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:53,661 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:53,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:40:53,662 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:53,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:53,662 INFO L85 PathProgramCache]: Analyzing trace with hash -452552879, now seen corresponding path program 1 times [2022-11-20 12:40:53,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:53,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603761587] [2022-11-20 12:40:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 12:40:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 12:40:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:40:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 12:40:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:40:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 12:40:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 12:40:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:40:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 12:40:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:40:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 12:40:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 12:40:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 12:40:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:40:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:53,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603761587] [2022-11-20 12:40:53,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603761587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:53,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:53,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:40:53,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310619487] [2022-11-20 12:40:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:53,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:40:53,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:53,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:40:53,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:40:53,819 INFO L87 Difference]: Start difference. First operand 4450 states and 7642 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:40:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:56,342 INFO L93 Difference]: Finished difference Result 11127 states and 19458 transitions. [2022-11-20 12:40:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:40:56,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2022-11-20 12:40:56,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:56,388 INFO L225 Difference]: With dead ends: 11127 [2022-11-20 12:40:56,388 INFO L226 Difference]: Without dead ends: 7414 [2022-11-20 12:40:56,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:40:56,402 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1316 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:56,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1027 Invalid, 2000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:40:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2022-11-20 12:40:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7293. [2022-11-20 12:40:57,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 6015 states have (on average 1.6485453034081463) internal successors, (9916), 6023 states have internal predecessors, (9916), 1249 states have call successors, (1249), 24 states have call predecessors, (1249), 28 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2022-11-20 12:40:57,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12531 transitions. [2022-11-20 12:40:57,464 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12531 transitions. Word has length 166 [2022-11-20 12:40:57,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:57,464 INFO L495 AbstractCegarLoop]: Abstraction has 7293 states and 12531 transitions. [2022-11-20 12:40:57,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:40:57,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12531 transitions. [2022-11-20 12:40:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 12:40:57,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:57,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:57,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:40:57,497 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:40:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1128633898, now seen corresponding path program 1 times [2022-11-20 12:40:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:57,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196370772] [2022-11-20 12:40:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:57,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:40:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:40:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:40:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:40:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:40:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:40:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 12:40:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 12:40:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 12:40:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:40:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 12:40:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 12:40:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 12:40:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 12:40:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 12:40:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 12:40:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 12:40:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 12:40:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 12:40:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:57,649 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:40:57,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:57,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196370772] [2022-11-20 12:40:57,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196370772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:57,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:57,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:40:57,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66683869] [2022-11-20 12:40:57,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:57,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:40:57,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:57,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:40:57,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:40:57,652 INFO L87 Difference]: Start difference. First operand 7293 states and 12531 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:41:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:00,667 INFO L93 Difference]: Finished difference Result 18547 states and 32422 transitions. [2022-11-20 12:41:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:41:00,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2022-11-20 12:41:00,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:00,733 INFO L225 Difference]: With dead ends: 18547 [2022-11-20 12:41:00,733 INFO L226 Difference]: Without dead ends: 12393 [2022-11-20 12:41:00,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:41:00,758 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1321 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:00,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 1003 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 12:41:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12393 states. [2022-11-20 12:41:01,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12393 to 12272. [2022-11-20 12:41:01,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12272 states, 10172 states have (on average 1.6483484073928432) internal successors, (16767), 10180 states have internal predecessors, (16767), 2071 states have call successors, (2071), 24 states have call predecessors, (2071), 28 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2022-11-20 12:41:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12272 states to 12272 states and 21104 transitions. [2022-11-20 12:41:01,889 INFO L78 Accepts]: Start accepts. Automaton has 12272 states and 21104 transitions. Word has length 167 [2022-11-20 12:41:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:01,889 INFO L495 AbstractCegarLoop]: Abstraction has 12272 states and 21104 transitions. [2022-11-20 12:41:01,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:41:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 12272 states and 21104 transitions. [2022-11-20 12:41:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 12:41:01,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:01,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:01,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:41:01,923 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:01,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1234346235, now seen corresponding path program 1 times [2022-11-20 12:41:01,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:01,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595240482] [2022-11-20 12:41:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:01,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:41:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:41:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:41:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:41:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:41:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 12:41:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 12:41:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 12:41:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 12:41:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 12:41:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 12:41:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:41:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:41:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:41:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:41:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-20 12:41:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:41:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595240482] [2022-11-20 12:41:02,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595240482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:02,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:02,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:41:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706970533] [2022-11-20 12:41:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:02,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:41:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:41:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:41:02,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:02,071 INFO L87 Difference]: Start difference. First operand 12272 states and 21104 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:41:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:05,853 INFO L93 Difference]: Finished difference Result 29505 states and 51282 transitions. [2022-11-20 12:41:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:41:05,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2022-11-20 12:41:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:05,945 INFO L225 Difference]: With dead ends: 29505 [2022-11-20 12:41:05,946 INFO L226 Difference]: Without dead ends: 19346 [2022-11-20 12:41:05,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:41:05,979 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1316 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:05,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 970 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 12:41:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19346 states. [2022-11-20 12:41:07,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19346 to 19225. [2022-11-20 12:41:07,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19225 states, 15922 states have (on average 1.6227232759703554) internal successors, (25837), 15930 states have internal predecessors, (25837), 3274 states have call successors, (3274), 24 states have call predecessors, (3274), 28 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2022-11-20 12:41:07,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19225 states to 19225 states and 32724 transitions. [2022-11-20 12:41:07,908 INFO L78 Accepts]: Start accepts. Automaton has 19225 states and 32724 transitions. Word has length 149 [2022-11-20 12:41:07,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:07,909 INFO L495 AbstractCegarLoop]: Abstraction has 19225 states and 32724 transitions. [2022-11-20 12:41:07,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:41:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 19225 states and 32724 transitions. [2022-11-20 12:41:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-20 12:41:07,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:07,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:07,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:41:07,951 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:07,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:07,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1467090805, now seen corresponding path program 1 times [2022-11-20 12:41:07,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:07,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464724652] [2022-11-20 12:41:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:07,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:41:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:41:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:41:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:41:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:41:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:41:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 12:41:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 12:41:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 12:41:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:41:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 12:41:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 12:41:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:41:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:41:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:41:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-20 12:41:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:41:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-20 12:41:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:41:08,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:41:08,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464724652] [2022-11-20 12:41:08,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464724652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:08,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:08,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:41:08,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454302085] [2022-11-20 12:41:08,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:08,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:41:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:41:08,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:41:08,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:08,135 INFO L87 Difference]: Start difference. First operand 19225 states and 32724 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:41:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:13,837 INFO L93 Difference]: Finished difference Result 50937 states and 88200 transitions. [2022-11-20 12:41:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:41:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2022-11-20 12:41:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:13,983 INFO L225 Difference]: With dead ends: 50937 [2022-11-20 12:41:13,983 INFO L226 Difference]: Without dead ends: 34467 [2022-11-20 12:41:14,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:41:14,033 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1309 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:14,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 997 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:41:14,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34467 states. [2022-11-20 12:41:17,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34467 to 34346. [2022-11-20 12:41:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34346 states, 28593 states have (on average 1.6193823663134335) internal successors, (46303), 28601 states have internal predecessors, (46303), 5724 states have call successors, (5724), 24 states have call predecessors, (5724), 28 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2022-11-20 12:41:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34346 states to 34346 states and 58364 transitions. [2022-11-20 12:41:17,988 INFO L78 Accepts]: Start accepts. Automaton has 34346 states and 58364 transitions. Word has length 169 [2022-11-20 12:41:17,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:17,989 INFO L495 AbstractCegarLoop]: Abstraction has 34346 states and 58364 transitions. [2022-11-20 12:41:17,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:41:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 34346 states and 58364 transitions. [2022-11-20 12:41:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-20 12:41:18,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:18,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:18,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:41:18,045 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:18,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash -785135819, now seen corresponding path program 1 times [2022-11-20 12:41:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:18,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912391827] [2022-11-20 12:41:18,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:18,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:41:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:41:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 12:41:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:41:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:41:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:41:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:41:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 12:41:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:41:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 12:41:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 12:41:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 12:41:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 12:41:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 12:41:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 12:41:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 12:41:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 12:41:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 12:41:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:41:18,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:41:18,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912391827] [2022-11-20 12:41:18,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912391827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:18,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:18,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:41:18,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616103901] [2022-11-20 12:41:18,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:18,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:41:18,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:41:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:41:18,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:18,202 INFO L87 Difference]: Start difference. First operand 34346 states and 58364 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 12:41:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:27,627 INFO L93 Difference]: Finished difference Result 93809 states and 161599 transitions. [2022-11-20 12:41:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:41:27,629 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 170 [2022-11-20 12:41:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:27,912 INFO L225 Difference]: With dead ends: 93809 [2022-11-20 12:41:27,913 INFO L226 Difference]: Without dead ends: 63134 [2022-11-20 12:41:27,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:41:27,990 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1309 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:27,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 1001 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 12:41:28,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states.