./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8 --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 14180d3cb690799ed57b4096de70e545e9154e30692708de4df58b96eb76a2f0 --- 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-e04fb08 [2022-11-16 12:38:05,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:38:05,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:38:05,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:38:05,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:38:05,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:38:05,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:38:05,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:38:05,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:38:05,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:38:05,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:38:05,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:38:05,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:38:05,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:38:05,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:38:05,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:38:05,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:38:05,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:38:05,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:38:05,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:38:05,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:38:05,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:38:05,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:38:05,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:38:05,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:38:05,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:38:05,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:38:05,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:38:05,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:38:05,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:38:05,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:38:05,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:38:05,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:38:05,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:38:05,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:38:05,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:38:05,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:38:05,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:38:05,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:38:05,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:38:05,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:38:05,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:38:06,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:38:06,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:38:06,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:38:06,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:38:06,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:38:06,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:38:06,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:38:06,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:38:06,026 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:38:06,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:38:06,028 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:38:06,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:38:06,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:38:06,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:38:06,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:38:06,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:38:06,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:38:06,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:38:06,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:38:06,030 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:38:06,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:38:06,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:38:06,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:38:06,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:38:06,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:38:06,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:38:06,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:38:06,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:38:06,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:38:06,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:38:06,032 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:38:06,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:38:06,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:38:06,033 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_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14180d3cb690799ed57b4096de70e545e9154e30692708de4df58b96eb76a2f0 [2022-11-16 12:38:06,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:38:06,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:38:06,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:38:06,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:38:06,437 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:38:06,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c [2022-11-16 12:38:06,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/data/fc95da09b/f895d0c04e02453fa28f582c3a85165f/FLAG8f33f0563 [2022-11-16 12:38:07,297 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:38:07,298 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c [2022-11-16 12:38:07,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/data/fc95da09b/f895d0c04e02453fa28f582c3a85165f/FLAG8f33f0563 [2022-11-16 12:38:07,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/data/fc95da09b/f895d0c04e02453fa28f582c3a85165f [2022-11-16 12:38:07,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:38:07,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:38:07,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:38:07,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:38:07,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:38:07,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:07" (1/1) ... [2022-11-16 12:38:07,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45774434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:07, skipping insertion in model container [2022-11-16 12:38:07,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:07" (1/1) ... [2022-11-16 12:38:07,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:38:07,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:38:08,112 WARN L229 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_c28b0652-9e21-4b18-a0ce-3b1feec89420/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c[19452,19465] [2022-11-16 12:38:08,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:38:08,367 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:38:08,441 WARN L229 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_c28b0652-9e21-4b18-a0ce-3b1feec89420/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c[19452,19465] [2022-11-16 12:38:08,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:38:08,576 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:38:08,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08 WrapperNode [2022-11-16 12:38:08,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:38:08,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:38:08,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:38:08,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:38:08,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,759 INFO L138 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 967 [2022-11-16 12:38:08,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:38:08,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:38:08,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:38:08,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:38:08,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:38:08,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:38:08,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:38:08,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:38:08,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (1/1) ... [2022-11-16 12:38:08,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:38:08,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:08,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:08,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:38:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 12:38:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 12:38:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 12:38:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 12:38:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 12:38:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 12:38:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 12:38:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 12:38:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 12:38:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 12:38:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-16 12:38:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-16 12:38:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 12:38:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 12:38:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 12:38:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 12:38:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 12:38:08,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 12:38:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 12:38:08,991 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 12:38:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 12:38:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-16 12:38:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-16 12:38:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 12:38:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 12:38:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:38:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 12:38:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 12:38:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 12:38:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 12:38:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 12:38:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 12:38:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 12:38:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 12:38:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 12:38:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 12:38:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 12:38:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 12:38:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 12:38:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 12:38:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 12:38:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 12:38:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:38:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 12:38:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 12:38:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 12:38:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 12:38:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:38:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:38:09,287 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:38:09,290 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:38:10,757 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:38:10,780 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:38:10,781 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:38:10,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:10 BoogieIcfgContainer [2022-11-16 12:38:10,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:38:10,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:38:10,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:38:10,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:38:10,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:07" (1/3) ... [2022-11-16 12:38:10,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c3b8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:10, skipping insertion in model container [2022-11-16 12:38:10,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:08" (2/3) ... [2022-11-16 12:38:10,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c3b8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:10, skipping insertion in model container [2022-11-16 12:38:10,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:10" (3/3) ... [2022-11-16 12:38:10,799 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product20.cil.c [2022-11-16 12:38:10,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:38:10,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:38:10,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:38:10,940 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;@197db91d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:38:10,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:38:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 365 states, 287 states have (on average 1.578397212543554) internal successors, (453), 292 states have internal predecessors, (453), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-11-16 12:38:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 12:38:10,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:10,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:10,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:10,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:10,996 INFO L85 PathProgramCache]: Analyzing trace with hash 288794369, now seen corresponding path program 1 times [2022-11-16 12:38:11,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:11,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111658440] [2022-11-16 12:38:11,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:11,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:38:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:38:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:38:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:38:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:38:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:38:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:38:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:38:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:38:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 12:38:12,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:12,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111658440] [2022-11-16 12:38:12,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111658440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:12,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282953510] [2022-11-16 12:38:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:12,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:12,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:12,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:38:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:12,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:38:12,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 12:38:12,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:12,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282953510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:12,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:12,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-16 12:38:12,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847397868] [2022-11-16 12:38:12,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:12,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:38:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:12,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:38:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:38:12,646 INFO L87 Difference]: Start difference. First operand has 365 states, 287 states have (on average 1.578397212543554) internal successors, (453), 292 states have internal predecessors, (453), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:12,764 INFO L93 Difference]: Finished difference Result 537 states and 812 transitions. [2022-11-16 12:38:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:38:12,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-11-16 12:38:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:12,794 INFO L225 Difference]: With dead ends: 537 [2022-11-16 12:38:12,796 INFO L226 Difference]: Without dead ends: 358 [2022-11-16 12:38:12,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:38:12,816 INFO L413 NwaCegarLoop]: 557 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, 557 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 [2022-11-16 12:38:12,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:38:12,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-11-16 12:38:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2022-11-16 12:38:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 281 states have (on average 1.5729537366548043) internal successors, (442), 285 states have internal predecessors, (442), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-16 12:38:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 549 transitions. [2022-11-16 12:38:12,908 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 549 transitions. Word has length 98 [2022-11-16 12:38:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:12,910 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 549 transitions. [2022-11-16 12:38:12,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 549 transitions. [2022-11-16 12:38:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 12:38:12,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:12,917 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:12,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:13,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 12:38:13,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:13,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash -784061991, now seen corresponding path program 1 times [2022-11-16 12:38:13,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:13,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371317429] [2022-11-16 12:38:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:13,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:38:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:38:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:38:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:38:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 12:38:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:38:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:38:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:38:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 12:38:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 12:38:13,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:13,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371317429] [2022-11-16 12:38:13,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371317429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172175827] [2022-11-16 12:38:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:13,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:13,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:13,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:13,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:38:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:13,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:38:13,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 12:38:14,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:14,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172175827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:14,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:14,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-16 12:38:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554190667] [2022-11-16 12:38:14,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:14,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:38:14,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:38:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:38:14,022 INFO L87 Difference]: Start difference. First operand 358 states and 549 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:14,119 INFO L93 Difference]: Finished difference Result 527 states and 790 transitions. [2022-11-16 12:38:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:38:14,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2022-11-16 12:38:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:14,135 INFO L225 Difference]: With dead ends: 527 [2022-11-16 12:38:14,136 INFO L226 Difference]: Without dead ends: 361 [2022-11-16 12:38:14,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:38:14,139 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 1 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1092 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 [2022-11-16 12:38:14,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1092 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:38:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-16 12:38:14,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 360. [2022-11-16 12:38:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 283 states have (on average 1.568904593639576) internal successors, (444), 287 states have internal predecessors, (444), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-16 12:38:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 551 transitions. [2022-11-16 12:38:14,205 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 551 transitions. Word has length 99 [2022-11-16 12:38:14,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:14,206 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 551 transitions. [2022-11-16 12:38:14,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:14,206 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 551 transitions. [2022-11-16 12:38:14,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-16 12:38:14,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:14,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:14,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:14,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:14,421 INFO L85 PathProgramCache]: Analyzing trace with hash 646331436, now seen corresponding path program 1 times [2022-11-16 12:38:14,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:14,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047873895] [2022-11-16 12:38:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:14,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:38:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:38:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:38:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:38:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:38:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:38:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:38:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:38:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:38:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:38:14,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:14,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047873895] [2022-11-16 12:38:14,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047873895] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:14,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330120080] [2022-11-16 12:38:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:14,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:14,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:14,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:14,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:38:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:38:15,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 12:38:15,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:15,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330120080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:15,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:15,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-16 12:38:15,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840260436] [2022-11-16 12:38:15,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:15,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:38:15,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:15,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:38:15,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:38:15,149 INFO L87 Difference]: Start difference. First operand 360 states and 551 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:15,190 INFO L93 Difference]: Finished difference Result 768 states and 1194 transitions. [2022-11-16 12:38:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:38:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-11-16 12:38:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:15,194 INFO L225 Difference]: With dead ends: 768 [2022-11-16 12:38:15,195 INFO L226 Difference]: Without dead ends: 435 [2022-11-16 12:38:15,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:38:15,197 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 134 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1071 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 [2022-11-16 12:38:15,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:38:15,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-11-16 12:38:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 427. [2022-11-16 12:38:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 336 states have (on average 1.5863095238095237) internal successors, (533), 340 states have internal predecessors, (533), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-16 12:38:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 668 transitions. [2022-11-16 12:38:15,233 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 668 transitions. Word has length 108 [2022-11-16 12:38:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:15,234 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 668 transitions. [2022-11-16 12:38:15,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 668 transitions. [2022-11-16 12:38:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-16 12:38:15,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:15,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:15,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:15,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:15,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:15,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1891029044, now seen corresponding path program 1 times [2022-11-16 12:38:15,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:15,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996597641] [2022-11-16 12:38:15,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:15,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:38:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:38:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:38:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 12:38:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:38:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:38:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:38:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:38:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:38:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:38:15,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:15,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996597641] [2022-11-16 12:38:15,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996597641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:15,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498623366] [2022-11-16 12:38:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:15,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:15,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:15,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:15,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:38:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:38:16,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:38:16,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:16,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498623366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:16,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:16,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-16 12:38:16,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259779781] [2022-11-16 12:38:16,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:16,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:38:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:38:16,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:38:16,271 INFO L87 Difference]: Start difference. First operand 427 states and 668 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:16,358 INFO L93 Difference]: Finished difference Result 845 states and 1326 transitions. [2022-11-16 12:38:16,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:16,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2022-11-16 12:38:16,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:16,362 INFO L225 Difference]: With dead ends: 845 [2022-11-16 12:38:16,362 INFO L226 Difference]: Without dead ends: 429 [2022-11-16 12:38:16,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:16,365 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 152 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1985 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 [2022-11-16 12:38:16,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1985 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:38:16,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-11-16 12:38:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-11-16 12:38:16,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 337 states have (on average 1.5845697329376855) internal successors, (534), 342 states have internal predecessors, (534), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2022-11-16 12:38:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 671 transitions. [2022-11-16 12:38:16,394 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 671 transitions. Word has length 109 [2022-11-16 12:38:16,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:16,395 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 671 transitions. [2022-11-16 12:38:16,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:16,395 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 671 transitions. [2022-11-16 12:38:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-16 12:38:16,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:16,399 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:16,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:16,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:16,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:16,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:16,607 INFO L85 PathProgramCache]: Analyzing trace with hash -256887782, now seen corresponding path program 1 times [2022-11-16 12:38:16,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:16,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061940506] [2022-11-16 12:38:16,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:16,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 12:38:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-16 12:38:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 12:38:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:38:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:38:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:38:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:38:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:38:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:38:16,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:16,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061940506] [2022-11-16 12:38:16,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061940506] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:16,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363283571] [2022-11-16 12:38:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:16,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:16,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:16,961 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:16,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:38:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:38:17,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:17,394 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:38:17,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:17,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363283571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:17,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:17,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-16 12:38:17,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378197754] [2022-11-16 12:38:17,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:17,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:38:17,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:17,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:38:17,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:38:17,397 INFO L87 Difference]: Start difference. First operand 429 states and 671 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:17,499 INFO L93 Difference]: Finished difference Result 847 states and 1331 transitions. [2022-11-16 12:38:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:17,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2022-11-16 12:38:17,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:17,503 INFO L225 Difference]: With dead ends: 847 [2022-11-16 12:38:17,503 INFO L226 Difference]: Without dead ends: 431 [2022-11-16 12:38:17,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:38:17,506 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 151 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1974 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 [2022-11-16 12:38:17,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1974 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:38:17,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-16 12:38:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2022-11-16 12:38:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 344 states have internal predecessors, (535), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-11-16 12:38:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 677 transitions. [2022-11-16 12:38:17,538 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 677 transitions. Word has length 110 [2022-11-16 12:38:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:17,539 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 677 transitions. [2022-11-16 12:38:17,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 677 transitions. [2022-11-16 12:38:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-16 12:38:17,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:17,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:17,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:17,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:17,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 701781740, now seen corresponding path program 1 times [2022-11-16 12:38:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:17,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984694224] [2022-11-16 12:38:17,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:17,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:38:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:38:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:38:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:18,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:38:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:38:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:38:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:38:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:38:18,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:18,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984694224] [2022-11-16 12:38:18,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984694224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:18,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:18,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:38:18,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220564953] [2022-11-16 12:38:18,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:18,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:38:18,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:18,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:38:18,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:38:18,032 INFO L87 Difference]: Start difference. First operand 431 states and 677 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:21,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:21,009 INFO L93 Difference]: Finished difference Result 951 states and 1516 transitions. [2022-11-16 12:38:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:38:21,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-11-16 12:38:21,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:21,017 INFO L225 Difference]: With dead ends: 951 [2022-11-16 12:38:21,017 INFO L226 Difference]: Without dead ends: 543 [2022-11-16 12:38:21,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:38:21,022 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1321 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:21,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 1192 Invalid, 2795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [451 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 12:38:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-11-16 12:38:21,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 431. [2022-11-16 12:38:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 344 states have internal predecessors, (535), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2022-11-16 12:38:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 676 transitions. [2022-11-16 12:38:21,117 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 676 transitions. Word has length 111 [2022-11-16 12:38:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 676 transitions. [2022-11-16 12:38:21,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 676 transitions. [2022-11-16 12:38:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-16 12:38:21,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:21,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:21,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:38:21,124 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:21,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:21,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1977119576, now seen corresponding path program 2 times [2022-11-16 12:38:21,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:21,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551253987] [2022-11-16 12:38:21,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:21,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 12:38:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:38:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:38:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:38:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:38:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:38:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:38:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:21,422 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:38:21,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:21,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551253987] [2022-11-16 12:38:21,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551253987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:21,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:21,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:38:21,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974086413] [2022-11-16 12:38:21,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:21,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:38:21,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:38:21,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:38:21,426 INFO L87 Difference]: Start difference. First operand 431 states and 676 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:24,002 INFO L93 Difference]: Finished difference Result 953 states and 1519 transitions. [2022-11-16 12:38:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:38:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2022-11-16 12:38:24,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:24,009 INFO L225 Difference]: With dead ends: 953 [2022-11-16 12:38:24,009 INFO L226 Difference]: Without dead ends: 545 [2022-11-16 12:38:24,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:38:24,014 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1317 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:24,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 1191 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:38:24,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-11-16 12:38:24,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 433. [2022-11-16 12:38:24,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 346 states have internal predecessors, (536), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2022-11-16 12:38:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 679 transitions. [2022-11-16 12:38:24,061 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 679 transitions. Word has length 112 [2022-11-16 12:38:24,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:24,064 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 679 transitions. [2022-11-16 12:38:24,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:38:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 679 transitions. [2022-11-16 12:38:24,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-16 12:38:24,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:24,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:24,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:38:24,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:24,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:24,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1369416463, now seen corresponding path program 1 times [2022-11-16 12:38:24,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:24,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486066735] [2022-11-16 12:38:24,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:24,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:38:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:38:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:38:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:38:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:38:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:38:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:38:24,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:24,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486066735] [2022-11-16 12:38:24,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486066735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:24,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:24,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:38:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6122335] [2022-11-16 12:38:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:24,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:38:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:24,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:38:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:38:24,391 INFO L87 Difference]: Start difference. First operand 433 states and 679 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-16 12:38:27,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:27,622 INFO L93 Difference]: Finished difference Result 951 states and 1514 transitions. [2022-11-16 12:38:27,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:38:27,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2022-11-16 12:38:27,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:27,632 INFO L225 Difference]: With dead ends: 951 [2022-11-16 12:38:27,632 INFO L226 Difference]: Without dead ends: 545 [2022-11-16 12:38:27,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:38:27,635 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1468 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3941 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 3941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:27,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1557 Invalid, 4422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [481 Valid, 3941 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 12:38:27,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-11-16 12:38:27,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 433. [2022-11-16 12:38:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 346 states have internal predecessors, (536), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-11-16 12:38:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 678 transitions. [2022-11-16 12:38:27,705 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 678 transitions. Word has length 113 [2022-11-16 12:38:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:27,706 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 678 transitions. [2022-11-16 12:38:27,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-16 12:38:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 678 transitions. [2022-11-16 12:38:27,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:38:27,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:27,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:27,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:38:27,709 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:27,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:27,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1863866383, now seen corresponding path program 2 times [2022-11-16 12:38:27,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:27,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438517046] [2022-11-16 12:38:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:27,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:38:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:38:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:38:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:38:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:38:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:38:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:38:28,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:28,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438517046] [2022-11-16 12:38:28,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438517046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:28,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:28,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:38:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212138266] [2022-11-16 12:38:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:28,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:38:28,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:38:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:38:28,019 INFO L87 Difference]: Start difference. First operand 433 states and 678 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-16 12:38:31,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:31,401 INFO L93 Difference]: Finished difference Result 953 states and 1520 transitions. [2022-11-16 12:38:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:38:31,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2022-11-16 12:38:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:31,406 INFO L225 Difference]: With dead ends: 953 [2022-11-16 12:38:31,406 INFO L226 Difference]: Without dead ends: 547 [2022-11-16 12:38:31,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:38:31,409 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1463 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3944 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 4431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 3944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:31,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 1556 Invalid, 4431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [487 Valid, 3944 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 12:38:31,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-11-16 12:38:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 435. [2022-11-16 12:38:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 348 states have internal predecessors, (537), 68 states have call successors, (68), 22 states have call predecessors, (68), 26 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2022-11-16 12:38:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 684 transitions. [2022-11-16 12:38:31,481 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 684 transitions. Word has length 114 [2022-11-16 12:38:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:31,482 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 684 transitions. [2022-11-16 12:38:31,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-16 12:38:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 684 transitions. [2022-11-16 12:38:31,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-16 12:38:31,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:31,485 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:31,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:38:31,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:31,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash 893010166, now seen corresponding path program 1 times [2022-11-16 12:38:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:31,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73869402] [2022-11-16 12:38:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:31,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:38:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:38:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:38:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:38:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:38:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:38:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-16 12:38:31,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:31,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73869402] [2022-11-16 12:38:31,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73869402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:31,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163649558] [2022-11-16 12:38:31,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:31,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:31,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:31,752 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:31,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:38:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:32,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:38:32,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:32,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:38:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:32,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163649558] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:38:32,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:38:32,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-16 12:38:32,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196712653] [2022-11-16 12:38:32,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:38:32,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:38:32,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:32,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:38:32,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:38:32,212 INFO L87 Difference]: Start difference. First operand 435 states and 684 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-16 12:38:37,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:37,403 INFO L93 Difference]: Finished difference Result 1812 states and 3078 transitions. [2022-11-16 12:38:37,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:38:37,403 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2022-11-16 12:38:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:37,412 INFO L225 Difference]: With dead ends: 1812 [2022-11-16 12:38:37,412 INFO L226 Difference]: Without dead ends: 1408 [2022-11-16 12:38:37,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-16 12:38:37,416 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 3365 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 6023 mSolverCounterSat, 1199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 7222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1199 IncrementalHoareTripleChecker+Valid, 6023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:37,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3367 Valid, 3863 Invalid, 7222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1199 Valid, 6023 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-16 12:38:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2022-11-16 12:38:37,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 853. [2022-11-16 12:38:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 679 states have (on average 1.6244477172312224) internal successors, (1103), 687 states have internal predecessors, (1103), 147 states have call successors, (147), 22 states have call predecessors, (147), 26 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2022-11-16 12:38:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1418 transitions. [2022-11-16 12:38:37,549 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1418 transitions. Word has length 115 [2022-11-16 12:38:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:37,549 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1418 transitions. [2022-11-16 12:38:37,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-16 12:38:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1418 transitions. [2022-11-16 12:38:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-16 12:38:37,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:37,555 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:37,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:37,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b0652-9e21-4b18-a0ce-3b1feec89420/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:38:37,762 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:37,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1757058345, now seen corresponding path program 1 times [2022-11-16 12:38:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:37,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688568980] [2022-11-16 12:38:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:37,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:38:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:38:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:38:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:38:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:38:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:38:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:37,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:37,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688568980] [2022-11-16 12:38:37,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688568980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:37,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:37,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:37,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992319862] [2022-11-16 12:38:37,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:37,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:37,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:37,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:37,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:37,914 INFO L87 Difference]: Start difference. First operand 853 states and 1418 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:39,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:39,932 INFO L93 Difference]: Finished difference Result 2138 states and 3646 transitions. [2022-11-16 12:38:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:39,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2022-11-16 12:38:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:39,942 INFO L225 Difference]: With dead ends: 2138 [2022-11-16 12:38:39,943 INFO L226 Difference]: Without dead ends: 1363 [2022-11-16 12:38:39,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:39,947 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1301 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:39,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1033 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:38:39,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-11-16 12:38:40,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1243. [2022-11-16 12:38:40,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 990 states have (on average 1.6393939393939394) internal successors, (1623), 998 states have internal predecessors, (1623), 226 states have call successors, (226), 22 states have call predecessors, (226), 26 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2022-11-16 12:38:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2106 transitions. [2022-11-16 12:38:40,123 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2106 transitions. Word has length 118 [2022-11-16 12:38:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:40,124 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 2106 transitions. [2022-11-16 12:38:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2106 transitions. [2022-11-16 12:38:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-16 12:38:40,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:40,131 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:40,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:38:40,131 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1275391994, now seen corresponding path program 1 times [2022-11-16 12:38:40,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:40,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898990725] [2022-11-16 12:38:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:38:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:38:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:38:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 12:38:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:38:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:38:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:40,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:40,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898990725] [2022-11-16 12:38:40,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898990725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:40,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:40,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:40,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743645842] [2022-11-16 12:38:40,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:40,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:40,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:40,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:40,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:40,265 INFO L87 Difference]: Start difference. First operand 1243 states and 2106 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:42,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:42,409 INFO L93 Difference]: Finished difference Result 3112 states and 5355 transitions. [2022-11-16 12:38:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:42,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-16 12:38:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:42,424 INFO L225 Difference]: With dead ends: 3112 [2022-11-16 12:38:42,424 INFO L226 Difference]: Without dead ends: 2000 [2022-11-16 12:38:42,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:42,430 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1303 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:42,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 993 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:38:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2022-11-16 12:38:42,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1880. [2022-11-16 12:38:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1508 states have (on average 1.6452254641909814) internal successors, (2481), 1516 states have internal predecessors, (2481), 345 states have call successors, (345), 22 states have call predecessors, (345), 26 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2022-11-16 12:38:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 3202 transitions. [2022-11-16 12:38:42,688 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 3202 transitions. Word has length 119 [2022-11-16 12:38:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:42,689 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 3202 transitions. [2022-11-16 12:38:42,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:42,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 3202 transitions. [2022-11-16 12:38:42,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 12:38:42,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:42,700 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:42,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:38:42,701 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:42,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:42,701 INFO L85 PathProgramCache]: Analyzing trace with hash -319840837, now seen corresponding path program 1 times [2022-11-16 12:38:42,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:42,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130142107] [2022-11-16 12:38:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:42,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:38:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:38:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:38:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:38:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:38:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:38:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:42,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130142107] [2022-11-16 12:38:42,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130142107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:42,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:42,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:42,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570502452] [2022-11-16 12:38:42,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:42,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:42,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:42,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:42,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:42,862 INFO L87 Difference]: Start difference. First operand 1880 states and 3202 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:45,050 INFO L93 Difference]: Finished difference Result 4592 states and 7966 transitions. [2022-11-16 12:38:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:45,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-11-16 12:38:45,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:45,068 INFO L225 Difference]: With dead ends: 4592 [2022-11-16 12:38:45,068 INFO L226 Difference]: Without dead ends: 2978 [2022-11-16 12:38:45,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:45,075 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1298 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:45,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 994 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:38:45,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2022-11-16 12:38:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2858. [2022-11-16 12:38:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 2324 states have (on average 1.6501721170395869) internal successors, (3835), 2332 states have internal predecessors, (3835), 507 states have call successors, (507), 22 states have call predecessors, (507), 26 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2022-11-16 12:38:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 4896 transitions. [2022-11-16 12:38:45,488 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 4896 transitions. Word has length 120 [2022-11-16 12:38:45,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:45,488 INFO L495 AbstractCegarLoop]: Abstraction has 2858 states and 4896 transitions. [2022-11-16 12:38:45,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 4896 transitions. [2022-11-16 12:38:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-16 12:38:45,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:45,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:45,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:38:45,504 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:45,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1011408487, now seen corresponding path program 1 times [2022-11-16 12:38:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:45,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410571134] [2022-11-16 12:38:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:38:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:38:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:38:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:38:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:38:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:38:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:45,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:45,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410571134] [2022-11-16 12:38:45,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410571134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:45,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:45,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:45,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625643192] [2022-11-16 12:38:45,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:45,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:45,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:45,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:45,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:45,661 INFO L87 Difference]: Start difference. First operand 2858 states and 4896 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:47,853 INFO L93 Difference]: Finished difference Result 6931 states and 12101 transitions. [2022-11-16 12:38:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:47,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-16 12:38:47,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:47,881 INFO L225 Difference]: With dead ends: 6931 [2022-11-16 12:38:47,881 INFO L226 Difference]: Without dead ends: 4558 [2022-11-16 12:38:47,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:47,890 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1293 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:47,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 996 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:38:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4558 states. [2022-11-16 12:38:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4558 to 4438. [2022-11-16 12:38:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 3659 states have (on average 1.6537305274665208) internal successors, (6051), 3667 states have internal predecessors, (6051), 752 states have call successors, (752), 22 states have call predecessors, (752), 26 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2022-11-16 12:38:48,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 7628 transitions. [2022-11-16 12:38:48,430 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 7628 transitions. Word has length 121 [2022-11-16 12:38:48,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:48,431 INFO L495 AbstractCegarLoop]: Abstraction has 4438 states and 7628 transitions. [2022-11-16 12:38:48,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:48,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 7628 transitions. [2022-11-16 12:38:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-16 12:38:48,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:48,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:48,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:38:48,444 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash -166887201, now seen corresponding path program 1 times [2022-11-16 12:38:48,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:48,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126228348] [2022-11-16 12:38:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:48,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:38:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:38:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:38:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:38:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:38:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:38:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:48,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126228348] [2022-11-16 12:38:48,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126228348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:48,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:48,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:48,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648415567] [2022-11-16 12:38:48,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:48,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:48,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:48,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:48,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:48,575 INFO L87 Difference]: Start difference. First operand 4438 states and 7628 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:51,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:51,007 INFO L93 Difference]: Finished difference Result 11102 states and 19430 transitions. [2022-11-16 12:38:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:51,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-11-16 12:38:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:51,054 INFO L225 Difference]: With dead ends: 11102 [2022-11-16 12:38:51,054 INFO L226 Difference]: Without dead ends: 7401 [2022-11-16 12:38:51,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:51,114 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1291 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:51,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1021 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:38:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2022-11-16 12:38:51,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7281. [2022-11-16 12:38:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7281 states, 6009 states have (on average 1.6491928773506408) internal successors, (9910), 6017 states have internal predecessors, (9910), 1245 states have call successors, (1245), 22 states have call predecessors, (1245), 26 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2022-11-16 12:38:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7281 states to 7281 states and 12517 transitions. [2022-11-16 12:38:52,012 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 12517 transitions. Word has length 122 [2022-11-16 12:38:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:52,013 INFO L495 AbstractCegarLoop]: Abstraction has 7281 states and 12517 transitions. [2022-11-16 12:38:52,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 12517 transitions. [2022-11-16 12:38:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-16 12:38:52,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:52,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:52,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:38:52,031 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:52,031 INFO L85 PathProgramCache]: Analyzing trace with hash 823731829, now seen corresponding path program 1 times [2022-11-16 12:38:52,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:52,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299708929] [2022-11-16 12:38:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:52,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:38:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:38:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:38:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:38:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:38:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:38:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:52,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299708929] [2022-11-16 12:38:52,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299708929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:52,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:52,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:52,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979273671] [2022-11-16 12:38:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:52,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:52,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:52,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:52,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:52,221 INFO L87 Difference]: Start difference. First operand 7281 states and 12517 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:55,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:38:55,201 INFO L93 Difference]: Finished difference Result 18522 states and 32394 transitions. [2022-11-16 12:38:55,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:55,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-11-16 12:38:55,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:38:55,259 INFO L225 Difference]: With dead ends: 18522 [2022-11-16 12:38:55,259 INFO L226 Difference]: Without dead ends: 12380 [2022-11-16 12:38:55,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:38:55,281 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1292 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:38:55,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 999 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:38:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12380 states. [2022-11-16 12:38:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12380 to 12260. [2022-11-16 12:38:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12260 states, 10166 states have (on average 1.6487310643320874) internal successors, (16761), 10174 states have internal predecessors, (16761), 2067 states have call successors, (2067), 22 states have call predecessors, (2067), 26 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2022-11-16 12:38:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 21090 transitions. [2022-11-16 12:38:56,646 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 21090 transitions. Word has length 123 [2022-11-16 12:38:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:38:56,647 INFO L495 AbstractCegarLoop]: Abstraction has 12260 states and 21090 transitions. [2022-11-16 12:38:56,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:38:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 21090 transitions. [2022-11-16 12:38:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-16 12:38:56,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:38:56,676 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:56,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:38:56,676 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:38:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:56,677 INFO L85 PathProgramCache]: Analyzing trace with hash 589848829, now seen corresponding path program 1 times [2022-11-16 12:38:56,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:56,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186433163] [2022-11-16 12:38:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:56,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:38:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:38:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:38:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:38:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:38:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:38:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:38:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:38:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:38:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:38:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:38:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:38:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:56,821 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:38:56,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:56,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186433163] [2022-11-16 12:38:56,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186433163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:56,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:56,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:38:56,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318832774] [2022-11-16 12:38:56,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:56,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:38:56,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:38:56,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:38:56,824 INFO L87 Difference]: Start difference. First operand 12260 states and 21090 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:39:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:39:00,168 INFO L93 Difference]: Finished difference Result 29480 states and 51254 transitions. [2022-11-16 12:39:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:00,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2022-11-16 12:39:00,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:39:00,257 INFO L225 Difference]: With dead ends: 29480 [2022-11-16 12:39:00,258 INFO L226 Difference]: Without dead ends: 19333 [2022-11-16 12:39:00,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:39:00,288 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1292 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:39:00,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1000 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:39:00,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19333 states. [2022-11-16 12:39:02,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19333 to 19213. [2022-11-16 12:39:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19213 states, 15916 states have (on average 1.6229580296556925) internal successors, (25831), 15924 states have internal predecessors, (25831), 3270 states have call successors, (3270), 22 states have call predecessors, (3270), 26 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2022-11-16 12:39:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19213 states to 19213 states and 32710 transitions. [2022-11-16 12:39:02,938 INFO L78 Accepts]: Start accepts. Automaton has 19213 states and 32710 transitions. Word has length 124 [2022-11-16 12:39:02,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:39:02,938 INFO L495 AbstractCegarLoop]: Abstraction has 19213 states and 32710 transitions. [2022-11-16 12:39:02,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:39:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 19213 states and 32710 transitions. [2022-11-16 12:39:02,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-16 12:39:02,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:39:02,966 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:02,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:39:02,966 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:39:02,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2091153292, now seen corresponding path program 1 times [2022-11-16 12:39:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:02,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232495698] [2022-11-16 12:39:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:39:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:39:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:39:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:39:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:39:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:39:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:39:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:39:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:39:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:39:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:39:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:39:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:39:03,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:03,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232495698] [2022-11-16 12:39:03,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232495698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:03,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:03,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:39:03,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972203894] [2022-11-16 12:39:03,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:03,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:39:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:39:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:39:03,121 INFO L87 Difference]: Start difference. First operand 19213 states and 32710 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:39:08,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:39:08,008 INFO L93 Difference]: Finished difference Result 50912 states and 88172 transitions. [2022-11-16 12:39:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:08,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-11-16 12:39:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:39:08,200 INFO L225 Difference]: With dead ends: 50912 [2022-11-16 12:39:08,200 INFO L226 Difference]: Without dead ends: 34454 [2022-11-16 12:39:08,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:39:08,255 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1288 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:39:08,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 997 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:39:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34454 states. [2022-11-16 12:39:12,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34454 to 34334. [2022-11-16 12:39:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34334 states, 28587 states have (on average 1.6195123657606605) internal successors, (46297), 28595 states have internal predecessors, (46297), 5720 states have call successors, (5720), 22 states have call predecessors, (5720), 26 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2022-11-16 12:39:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34334 states to 34334 states and 58350 transitions. [2022-11-16 12:39:12,222 INFO L78 Accepts]: Start accepts. Automaton has 34334 states and 58350 transitions. Word has length 125 [2022-11-16 12:39:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:39:12,222 INFO L495 AbstractCegarLoop]: Abstraction has 34334 states and 58350 transitions. [2022-11-16 12:39:12,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:39:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 34334 states and 58350 transitions. [2022-11-16 12:39:12,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-16 12:39:12,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:39:12,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:12,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:39:12,247 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:39:12,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:12,247 INFO L85 PathProgramCache]: Analyzing trace with hash -870526205, now seen corresponding path program 1 times [2022-11-16 12:39:12,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619116291] [2022-11-16 12:39:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:12,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:39:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:39:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:39:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:39:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:39:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:39:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:39:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:39:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:39:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:39:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:39:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:39:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:39:12,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:12,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619116291] [2022-11-16 12:39:12,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619116291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:12,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:12,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:39:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95929388] [2022-11-16 12:39:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:12,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:39:12,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:12,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:39:12,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:39:12,381 INFO L87 Difference]: Start difference. First operand 34334 states and 58350 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:39:20,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:39:20,336 INFO L93 Difference]: Finished difference Result 93784 states and 161571 transitions. [2022-11-16 12:39:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:20,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2022-11-16 12:39:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:39:20,555 INFO L225 Difference]: With dead ends: 93784 [2022-11-16 12:39:20,555 INFO L226 Difference]: Without dead ends: 63121 [2022-11-16 12:39:20,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:39:20,630 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1287 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:39:20,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 999 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:39:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63121 states. [2022-11-16 12:39:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63121 to 63001. [2022-11-16 12:39:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63001 states, 52741 states have (on average 1.6151002066703324) internal successors, (85182), 52749 states have internal predecessors, (85182), 10233 states have call successors, (10233), 22 states have call predecessors, (10233), 26 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2022-11-16 12:39:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63001 states to 63001 states and 106793 transitions. [2022-11-16 12:39:27,444 INFO L78 Accepts]: Start accepts. Automaton has 63001 states and 106793 transitions. Word has length 126 [2022-11-16 12:39:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:39:27,444 INFO L495 AbstractCegarLoop]: Abstraction has 63001 states and 106793 transitions. [2022-11-16 12:39:27,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 12:39:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 63001 states and 106793 transitions. [2022-11-16 12:39:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-16 12:39:27,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:39:27,474 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:27,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:39:27,474 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:39:27,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:27,475 INFO L85 PathProgramCache]: Analyzing trace with hash 540084212, now seen corresponding path program 1 times [2022-11-16 12:39:27,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:27,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888464522] [2022-11-16 12:39:27,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:27,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:39:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:39:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:39:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:39:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:39:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:39:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:39:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:39:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:39:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:39:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:39:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:39:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:39:27,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:27,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888464522] [2022-11-16 12:39:27,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888464522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:27,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:27,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:39:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800614554] [2022-11-16 12:39:27,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:27,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:39:27,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:27,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:39:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:39:27,638 INFO L87 Difference]: Start difference. First operand 63001 states and 106793 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)