./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro --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 dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d --- 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-8393723 [2022-11-18 18:45:40,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:45:40,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:45:40,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:45:40,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:45:40,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:45:40,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:45:40,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:45:40,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:45:40,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:45:40,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:45:40,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:45:40,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:45:40,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:45:40,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:45:40,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:45:40,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:45:40,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:45:40,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:45:41,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:45:41,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:45:41,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:45:41,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:45:41,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:45:41,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:45:41,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:45:41,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:45:41,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:45:41,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:45:41,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:45:41,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:45:41,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:45:41,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:45:41,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:45:41,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:45:41,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:45:41,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:45:41,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:45:41,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:45:41,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:45:41,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:45:41,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:45:41,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:45:41,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:45:41,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:45:41,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:45:41,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:45:41,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:45:41,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:45:41,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:45:41,106 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:45:41,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:45:41,108 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:45:41,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:45:41,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:45:41,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:45:41,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:45:41,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:45:41,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:45:41,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:45:41,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:45:41,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:45:41,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:45:41,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:45:41,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:45:41,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:45:41,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:45:41,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:45:41,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:45:41,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:45:41,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:45:41,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:45:41,113 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:45:41,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:45:41,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:45:41,114 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_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d [2022-11-18 18:45:41,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:45:41,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:45:41,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:45:41,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:45:41,503 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:45:41,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2022-11-18 18:45:41,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/data/d7efece35/3be6ce9aa48c422282f9fe2a1cba1e90/FLAGcc6cdf572 [2022-11-18 18:45:42,307 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:45:42,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2022-11-18 18:45:42,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/data/d7efece35/3be6ce9aa48c422282f9fe2a1cba1e90/FLAGcc6cdf572 [2022-11-18 18:45:42,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/data/d7efece35/3be6ce9aa48c422282f9fe2a1cba1e90 [2022-11-18 18:45:42,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:45:42,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:45:42,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:45:42,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:45:42,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:45:42,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:45:42" (1/1) ... [2022-11-18 18:45:42,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ae629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:42, skipping insertion in model container [2022-11-18 18:45:42,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:45:42" (1/1) ... [2022-11-18 18:45:42,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:45:42,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:45:43,065 WARN L234 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_442cc7b4-5e0b-4985-b85b-228a24d402a1/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c[40745,40758] [2022-11-18 18:45:43,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:45:43,239 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:45:43,389 WARN L234 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_442cc7b4-5e0b-4985-b85b-228a24d402a1/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c[40745,40758] [2022-11-18 18:45:43,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:45:43,495 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:45:43,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43 WrapperNode [2022-11-18 18:45:43,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:45:43,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:45:43,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:45:43,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:45:43,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,627 INFO L138 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 985 [2022-11-18 18:45:43,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:45:43,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:45:43,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:45:43,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:45:43,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:45:43,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:45:43,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:45:43,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:45:43,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (1/1) ... [2022-11-18 18:45:43,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:45:43,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:43,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:45:43,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:45:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-18 18:45:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-18 18:45:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-18 18:45:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-18 18:45:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-18 18:45:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-18 18:45:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-18 18:45:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-18 18:45:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-18 18:45:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-18 18:45:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-18 18:45:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-18 18:45:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-18 18:45:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-18 18:45:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-18 18:45:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-18 18:45:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-18 18:45:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-18 18:45:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-18 18:45:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-18 18:45:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-18 18:45:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-18 18:45:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-18 18:45:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:45:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-18 18:45:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-18 18:45:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-18 18:45:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-18 18:45:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-18 18:45:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-18 18:45:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-18 18:45:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-18 18:45:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-18 18:45:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-18 18:45:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-18 18:45:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-18 18:45:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-18 18:45:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-18 18:45:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-18 18:45:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-18 18:45:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:45:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-18 18:45:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-18 18:45:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-18 18:45:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-18 18:45:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:45:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:45:44,162 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:45:44,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:45:45,389 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:45:45,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:45:45,414 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:45:45,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:45:45 BoogieIcfgContainer [2022-11-18 18:45:45,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:45:45,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:45:45,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:45:45,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:45:45,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:45:42" (1/3) ... [2022-11-18 18:45:45,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25d5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:45:45, skipping insertion in model container [2022-11-18 18:45:45,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:43" (2/3) ... [2022-11-18 18:45:45,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25d5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:45:45, skipping insertion in model container [2022-11-18 18:45:45,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:45:45" (3/3) ... [2022-11-18 18:45:45,436 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product23.cil.c [2022-11-18 18:45:45,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:45:45,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:45:45,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:45:45,548 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;@54282a71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:45:45,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:45:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 289 states have (on average 1.5813148788927336) internal successors, (457), 292 states have internal predecessors, (457), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-18 18:45:45,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 18:45:45,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:45,582 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:45,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:45,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:45,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1255563700, now seen corresponding path program 1 times [2022-11-18 18:45:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:45,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309871338] [2022-11-18 18:45:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:45:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 18:45:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:45:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 18:45:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 18:45:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 18:45:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 18:45:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:45:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:45:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:45:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 18:45:46,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:46,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309871338] [2022-11-18 18:45:46,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309871338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:46,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485319646] [2022-11-18 18:45:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:46,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:46,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:46,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:46,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:45:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:45:47,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:47,060 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 18:45:47,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:47,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485319646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:47,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:47,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-18 18:45:47,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113741079] [2022-11-18 18:45:47,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:47,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:45:47,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:47,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:45:47,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:45:47,133 INFO L87 Difference]: Start difference. First operand has 362 states, 289 states have (on average 1.5813148788927336) internal successors, (457), 292 states have internal predecessors, (457), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:45:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:47,259 INFO L93 Difference]: Finished difference Result 531 states and 804 transitions. [2022-11-18 18:45:47,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:45:47,265 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2022-11-18 18:45:47,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:47,288 INFO L225 Difference]: With dead ends: 531 [2022-11-18 18:45:47,288 INFO L226 Difference]: Without dead ends: 355 [2022-11-18 18:45:47,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:45:47,305 INFO L413 NwaCegarLoop]: 553 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, 553 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 [2022-11-18 18:45:47,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:47,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-11-18 18:45:47,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2022-11-18 18:45:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 283 states have (on average 1.5759717314487633) internal successors, (446), 285 states have internal predecessors, (446), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-18 18:45:47,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 545 transitions. [2022-11-18 18:45:47,418 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 545 transitions. Word has length 107 [2022-11-18 18:45:47,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:47,419 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 545 transitions. [2022-11-18 18:45:47,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:45:47,420 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 545 transitions. [2022-11-18 18:45:47,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-18 18:45:47,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:47,435 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-18 18:45:47,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 18:45:47,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 18:45:47,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:47,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1175451570, now seen corresponding path program 1 times [2022-11-18 18:45:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:47,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670272675] [2022-11-18 18:45:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:47,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:47,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:45:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 18:45:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:45:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 18:45:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 18:45:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:45:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:45:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:45:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:45:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:45:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 18:45:48,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:48,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670272675] [2022-11-18 18:45:48,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670272675] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221033560] [2022-11-18 18:45:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:48,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:48,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:48,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:48,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:45:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:48,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:45:48,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 18:45:48,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:48,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221033560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:48,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:48,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 18:45:48,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169609522] [2022-11-18 18:45:48,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:48,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:45:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:45:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:45:48,495 INFO L87 Difference]: Start difference. First operand 355 states and 545 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:45:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:48,575 INFO L93 Difference]: Finished difference Result 521 states and 782 transitions. [2022-11-18 18:45:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:45:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-11-18 18:45:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:48,585 INFO L225 Difference]: With dead ends: 521 [2022-11-18 18:45:48,586 INFO L226 Difference]: Without dead ends: 358 [2022-11-18 18:45:48,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:45:48,590 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1084 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 [2022-11-18 18:45:48,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-11-18 18:45:48,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2022-11-18 18:45:48,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 285 states have (on average 1.5719298245614035) internal successors, (448), 287 states have internal predecessors, (448), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-18 18:45:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 547 transitions. [2022-11-18 18:45:48,629 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 547 transitions. Word has length 108 [2022-11-18 18:45:48,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:48,629 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 547 transitions. [2022-11-18 18:45:48,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:45:48,629 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 547 transitions. [2022-11-18 18:45:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-18 18:45:48,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:48,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:48,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:48,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-18 18:45:48,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1108325951, now seen corresponding path program 1 times [2022-11-18 18:45:48,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:48,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978998842] [2022-11-18 18:45:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:48,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:45:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 18:45:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:45:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:45:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:45:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:45:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:45:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 18:45:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:45:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:45:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 18:45:49,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:49,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978998842] [2022-11-18 18:45:49,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978998842] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:49,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223133887] [2022-11-18 18:45:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:49,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:49,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:49,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:45:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:45:49,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:49,518 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 18:45:49,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:49,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223133887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:49,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:49,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 18:45:49,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644380407] [2022-11-18 18:45:49,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:49,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:45:49,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:49,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:45:49,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:45:49,521 INFO L87 Difference]: Start difference. First operand 357 states and 547 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:45:49,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:49,558 INFO L93 Difference]: Finished difference Result 762 states and 1186 transitions. [2022-11-18 18:45:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:45:49,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2022-11-18 18:45:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:49,562 INFO L225 Difference]: With dead ends: 762 [2022-11-18 18:45:49,562 INFO L226 Difference]: Without dead ends: 432 [2022-11-18 18:45:49,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:45:49,565 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 134 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1065 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 [2022-11-18 18:45:49,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1065 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:49,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-18 18:45:49,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 424. [2022-11-18 18:45:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 338 states have (on average 1.5887573964497042) internal successors, (537), 340 states have internal predecessors, (537), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-18 18:45:49,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 664 transitions. [2022-11-18 18:45:49,594 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 664 transitions. Word has length 117 [2022-11-18 18:45:49,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:49,594 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 664 transitions. [2022-11-18 18:45:49,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:45:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 664 transitions. [2022-11-18 18:45:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-18 18:45:49,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:49,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:49,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:49,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:49,807 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:49,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:49,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1329257697, now seen corresponding path program 1 times [2022-11-18 18:45:49,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:49,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942612212] [2022-11-18 18:45:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:49,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:45:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 18:45:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:45:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 18:45:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:45:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 18:45:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 18:45:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 18:45:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:45:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:45:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 18:45:50,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:50,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942612212] [2022-11-18 18:45:50,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942612212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:50,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680480638] [2022-11-18 18:45:50,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:50,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:50,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:50,151 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:50,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:45:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:50,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:45:50,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 18:45:50,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:50,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680480638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:50,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:50,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-18 18:45:50,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74517967] [2022-11-18 18:45:50,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:50,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:45:50,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:50,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:45:50,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:45:50,587 INFO L87 Difference]: Start difference. First operand 424 states and 664 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:50,670 INFO L93 Difference]: Finished difference Result 839 states and 1318 transitions. [2022-11-18 18:45:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:45:50,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2022-11-18 18:45:50,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:50,673 INFO L225 Difference]: With dead ends: 839 [2022-11-18 18:45:50,674 INFO L226 Difference]: Without dead ends: 426 [2022-11-18 18:45:50,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:45:50,676 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 152 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1969 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 [2022-11-18 18:45:50,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1969 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-11-18 18:45:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-11-18 18:45:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 339 states have (on average 1.5870206489675516) internal successors, (538), 342 states have internal predecessors, (538), 64 states have call successors, (64), 21 states have call predecessors, (64), 22 states have return successors, (65), 62 states have call predecessors, (65), 63 states have call successors, (65) [2022-11-18 18:45:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 667 transitions. [2022-11-18 18:45:50,702 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 667 transitions. Word has length 118 [2022-11-18 18:45:50,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:50,703 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 667 transitions. [2022-11-18 18:45:50,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 667 transitions. [2022-11-18 18:45:50,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 18:45:50,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:50,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:50,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:50,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:50,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:50,914 INFO L85 PathProgramCache]: Analyzing trace with hash -135055949, now seen corresponding path program 1 times [2022-11-18 18:45:50,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:50,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224565262] [2022-11-18 18:45:50,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:50,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:45:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 18:45:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 18:45:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 18:45:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:45:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:45:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:45:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:45:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:45:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 18:45:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 18:45:51,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:51,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224565262] [2022-11-18 18:45:51,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224565262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:51,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401344780] [2022-11-18 18:45:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:51,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:51,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:51,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:51,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:45:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:51,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:45:51,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 18:45:51,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:45:51,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401344780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:51,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:45:51,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-18 18:45:51,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487515369] [2022-11-18 18:45:51,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:51,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:45:51,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:51,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:45:51,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:45:51,695 INFO L87 Difference]: Start difference. First operand 426 states and 667 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:51,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:51,796 INFO L93 Difference]: Finished difference Result 841 states and 1323 transitions. [2022-11-18 18:45:51,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:45:51,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2022-11-18 18:45:51,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:51,800 INFO L225 Difference]: With dead ends: 841 [2022-11-18 18:45:51,800 INFO L226 Difference]: Without dead ends: 428 [2022-11-18 18:45:51,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:45:51,804 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 151 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1958 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 [2022-11-18 18:45:51,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1958 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:51,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-11-18 18:45:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2022-11-18 18:45:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 340 states have (on average 1.5852941176470587) internal successors, (539), 344 states have internal predecessors, (539), 64 states have call successors, (64), 21 states have call predecessors, (64), 23 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2022-11-18 18:45:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 673 transitions. [2022-11-18 18:45:51,849 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 673 transitions. Word has length 119 [2022-11-18 18:45:51,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:51,850 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 673 transitions. [2022-11-18 18:45:51,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:51,851 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 673 transitions. [2022-11-18 18:45:51,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-18 18:45:51,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:51,856 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:51,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 18:45:52,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:52,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:52,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash -608679725, now seen corresponding path program 1 times [2022-11-18 18:45:52,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:52,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424400860] [2022-11-18 18:45:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:52,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:45:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:45:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:45:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 18:45:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 18:45:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:45:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:45:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 18:45:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:45:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:45:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 18:45:52,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:52,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424400860] [2022-11-18 18:45:52,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424400860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:52,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:52,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:45:52,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078660448] [2022-11-18 18:45:52,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:52,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:45:52,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:45:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:45:52,360 INFO L87 Difference]: Start difference. First operand 428 states and 673 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:54,995 INFO L93 Difference]: Finished difference Result 953 states and 1523 transitions. [2022-11-18 18:45:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:45:54,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2022-11-18 18:45:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:55,000 INFO L225 Difference]: With dead ends: 953 [2022-11-18 18:45:55,000 INFO L226 Difference]: Without dead ends: 548 [2022-11-18 18:45:55,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:45:55,003 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1345 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:55,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 1191 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 18:45:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-18 18:45:55,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 428. [2022-11-18 18:45:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 340 states have (on average 1.5852941176470587) internal successors, (539), 344 states have internal predecessors, (539), 64 states have call successors, (64), 21 states have call predecessors, (64), 23 states have return successors, (69), 62 states have call predecessors, (69), 63 states have call successors, (69) [2022-11-18 18:45:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 672 transitions. [2022-11-18 18:45:55,100 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 672 transitions. Word has length 120 [2022-11-18 18:45:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:55,101 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 672 transitions. [2022-11-18 18:45:55,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 672 transitions. [2022-11-18 18:45:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 18:45:55,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:55,105 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:55,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:45:55,106 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:55,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:55,107 INFO L85 PathProgramCache]: Analyzing trace with hash 960683017, now seen corresponding path program 2 times [2022-11-18 18:45:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:55,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798806799] [2022-11-18 18:45:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:45:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:45:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 18:45:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 18:45:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:45:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 18:45:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:45:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:45:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:45:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 18:45:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 18:45:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:55,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798806799] [2022-11-18 18:45:55,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798806799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:55,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:55,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:45:55,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152863171] [2022-11-18 18:45:55,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:55,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:45:55,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:45:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:45:55,394 INFO L87 Difference]: Start difference. First operand 428 states and 672 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:58,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:58,026 INFO L93 Difference]: Finished difference Result 955 states and 1526 transitions. [2022-11-18 18:45:58,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:45:58,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2022-11-18 18:45:58,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:58,031 INFO L225 Difference]: With dead ends: 955 [2022-11-18 18:45:58,031 INFO L226 Difference]: Without dead ends: 550 [2022-11-18 18:45:58,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:45:58,034 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1335 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:58,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 1192 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 18:45:58,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-11-18 18:45:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 430. [2022-11-18 18:45:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 341 states have (on average 1.5835777126099706) internal successors, (540), 346 states have internal predecessors, (540), 64 states have call successors, (64), 21 states have call predecessors, (64), 24 states have return successors, (71), 62 states have call predecessors, (71), 63 states have call successors, (71) [2022-11-18 18:45:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 675 transitions. [2022-11-18 18:45:58,112 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 675 transitions. Word has length 121 [2022-11-18 18:45:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:58,113 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 675 transitions. [2022-11-18 18:45:58,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 18:45:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 675 transitions. [2022-11-18 18:45:58,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-18 18:45:58,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:58,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:58,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:45:58,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:58,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:58,119 INFO L85 PathProgramCache]: Analyzing trace with hash -382665554, now seen corresponding path program 1 times [2022-11-18 18:45:58,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:58,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414368049] [2022-11-18 18:45:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:58,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:45:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:45:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:45:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:45:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:45:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:45:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:45:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:45:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:45:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 18:45:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:45:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 18:45:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:45:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 18:45:58,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:58,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414368049] [2022-11-18 18:45:58,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414368049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:58,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:58,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:45:58,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732123157] [2022-11-18 18:45:58,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:58,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:45:58,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:58,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:45:58,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:45:58,450 INFO L87 Difference]: Start difference. First operand 430 states and 675 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 18:46:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:02,323 INFO L93 Difference]: Finished difference Result 953 states and 1521 transitions. [2022-11-18 18:46:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:46:02,327 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2022-11-18 18:46:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:02,331 INFO L225 Difference]: With dead ends: 953 [2022-11-18 18:46:02,331 INFO L226 Difference]: Without dead ends: 550 [2022-11-18 18:46:02,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:46:02,335 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1488 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3934 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 4412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 3934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:02,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1556 Invalid, 4412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [478 Valid, 3934 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-18 18:46:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-11-18 18:46:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 430. [2022-11-18 18:46:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 341 states have (on average 1.5835777126099706) internal successors, (540), 346 states have internal predecessors, (540), 64 states have call successors, (64), 21 states have call predecessors, (64), 24 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2022-11-18 18:46:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 674 transitions. [2022-11-18 18:46:02,420 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 674 transitions. Word has length 122 [2022-11-18 18:46:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:02,421 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 674 transitions. [2022-11-18 18:46:02,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 18:46:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 674 transitions. [2022-11-18 18:46:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-18 18:46:02,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:02,426 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:02,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:46:02,427 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1142899834, now seen corresponding path program 2 times [2022-11-18 18:46:02,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:02,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316363403] [2022-11-18 18:46:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:46:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:46:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 18:46:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 18:46:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:46:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:46:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 18:46:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 18:46:02,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:02,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316363403] [2022-11-18 18:46:02,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316363403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:02,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:02,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:46:02,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834811016] [2022-11-18 18:46:02,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:02,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:46:02,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:02,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:46:02,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:46:02,785 INFO L87 Difference]: Start difference. First operand 430 states and 674 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 18:46:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:06,246 INFO L93 Difference]: Finished difference Result 955 states and 1527 transitions. [2022-11-18 18:46:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:46:06,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2022-11-18 18:46:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:06,250 INFO L225 Difference]: With dead ends: 955 [2022-11-18 18:46:06,250 INFO L226 Difference]: Without dead ends: 552 [2022-11-18 18:46:06,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:46:06,253 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1481 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4002 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 4002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:06,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1557 Invalid, 4464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 4002 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-18 18:46:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-11-18 18:46:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 432. [2022-11-18 18:46:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 342 states have (on average 1.5818713450292399) internal successors, (541), 348 states have internal predecessors, (541), 64 states have call successors, (64), 21 states have call predecessors, (64), 25 states have return successors, (75), 62 states have call predecessors, (75), 63 states have call successors, (75) [2022-11-18 18:46:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 680 transitions. [2022-11-18 18:46:06,303 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 680 transitions. Word has length 123 [2022-11-18 18:46:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:06,304 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 680 transitions. [2022-11-18 18:46:06,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 18:46:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 680 transitions. [2022-11-18 18:46:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-18 18:46:06,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:06,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:06,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:46:06,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:06,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1796614903, now seen corresponding path program 1 times [2022-11-18 18:46:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:06,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494825803] [2022-11-18 18:46:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:46:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:46:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:46:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 18:46:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:46:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 18:46:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:46:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 18:46:06,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:06,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494825803] [2022-11-18 18:46:06,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494825803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:46:06,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251618348] [2022-11-18 18:46:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:06,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:46:06,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:46:06,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:46:06,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:46:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:06,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:46:06,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:46:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:07,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:46:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:07,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251618348] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:46:07,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:46:07,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-18 18:46:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224585580] [2022-11-18 18:46:07,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:46:07,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 18:46:07,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:07,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 18:46:07,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:46:07,169 INFO L87 Difference]: Start difference. First operand 432 states and 680 transitions. Second operand has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 18:46:12,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:12,344 INFO L93 Difference]: Finished difference Result 1814 states and 3085 transitions. [2022-11-18 18:46:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:46:12,344 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 124 [2022-11-18 18:46:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:12,352 INFO L225 Difference]: With dead ends: 1814 [2022-11-18 18:46:12,352 INFO L226 Difference]: Without dead ends: 1413 [2022-11-18 18:46:12,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-18 18:46:12,355 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 4370 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 5522 mSolverCounterSat, 1449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4372 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 6971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1449 IncrementalHoareTripleChecker+Valid, 5522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:12,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4372 Valid, 3877 Invalid, 6971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1449 Valid, 5522 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-18 18:46:12,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-11-18 18:46:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 850. [2022-11-18 18:46:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 681 states have (on average 1.6255506607929515) internal successors, (1107), 687 states have internal predecessors, (1107), 143 states have call successors, (143), 21 states have call predecessors, (143), 25 states have return successors, (164), 141 states have call predecessors, (164), 142 states have call successors, (164) [2022-11-18 18:46:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1414 transitions. [2022-11-18 18:46:12,461 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1414 transitions. Word has length 124 [2022-11-18 18:46:12,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:12,461 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1414 transitions. [2022-11-18 18:46:12,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 18:46:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1414 transitions. [2022-11-18 18:46:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 18:46:12,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:12,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:12,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:46:12,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442cc7b4-5e0b-4985-b85b-228a24d402a1/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 18:46:12,674 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:12,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:12,675 INFO L85 PathProgramCache]: Analyzing trace with hash -157305458, now seen corresponding path program 1 times [2022-11-18 18:46:12,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:12,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999740100] [2022-11-18 18:46:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:12,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:46:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 18:46:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:46:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:46:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:46:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 18:46:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:46:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:12,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999740100] [2022-11-18 18:46:12,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999740100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:12,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:12,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:12,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914865372] [2022-11-18 18:46:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:12,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:12,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:12,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:12,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:12,812 INFO L87 Difference]: Start difference. First operand 850 states and 1414 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:14,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:14,909 INFO L93 Difference]: Finished difference Result 2140 states and 3653 transitions. [2022-11-18 18:46:14,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:14,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-18 18:46:14,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:14,918 INFO L225 Difference]: With dead ends: 2140 [2022-11-18 18:46:14,918 INFO L226 Difference]: Without dead ends: 1368 [2022-11-18 18:46:14,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:14,923 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1320 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:14,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 1049 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 18:46:14,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2022-11-18 18:46:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1240. [2022-11-18 18:46:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 992 states have (on average 1.6401209677419355) internal successors, (1627), 998 states have internal predecessors, (1627), 222 states have call successors, (222), 21 states have call predecessors, (222), 25 states have return successors, (253), 220 states have call predecessors, (253), 221 states have call successors, (253) [2022-11-18 18:46:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 2102 transitions. [2022-11-18 18:46:15,096 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 2102 transitions. Word has length 127 [2022-11-18 18:46:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:15,097 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 2102 transitions. [2022-11-18 18:46:15,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 2102 transitions. [2022-11-18 18:46:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-18 18:46:15,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:15,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:15,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:46:15,105 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:15,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:15,105 INFO L85 PathProgramCache]: Analyzing trace with hash 423141509, now seen corresponding path program 1 times [2022-11-18 18:46:15,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:15,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641610947] [2022-11-18 18:46:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:15,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:46:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 18:46:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:46:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:46:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 18:46:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 18:46:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 18:46:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:15,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:15,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641610947] [2022-11-18 18:46:15,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641610947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:15,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:15,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:15,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911170900] [2022-11-18 18:46:15,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:15,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:15,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:15,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:15,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:15,251 INFO L87 Difference]: Start difference. First operand 1240 states and 2102 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:17,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:17,293 INFO L93 Difference]: Finished difference Result 3114 states and 5362 transitions. [2022-11-18 18:46:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:17,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-11-18 18:46:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:17,304 INFO L225 Difference]: With dead ends: 3114 [2022-11-18 18:46:17,305 INFO L226 Difference]: Without dead ends: 2005 [2022-11-18 18:46:17,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:17,309 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1321 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:17,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 996 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 18:46:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2022-11-18 18:46:17,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1877. [2022-11-18 18:46:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1510 states have (on average 1.6456953642384107) internal successors, (2485), 1516 states have internal predecessors, (2485), 341 states have call successors, (341), 21 states have call predecessors, (341), 25 states have return successors, (372), 339 states have call predecessors, (372), 340 states have call successors, (372) [2022-11-18 18:46:17,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3198 transitions. [2022-11-18 18:46:17,551 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3198 transitions. Word has length 128 [2022-11-18 18:46:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:17,552 INFO L495 AbstractCegarLoop]: Abstraction has 1877 states and 3198 transitions. [2022-11-18 18:46:17,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:17,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3198 transitions. [2022-11-18 18:46:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-18 18:46:17,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:17,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:17,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:46:17,563 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:17,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash 411797052, now seen corresponding path program 1 times [2022-11-18 18:46:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:17,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171542230] [2022-11-18 18:46:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:17,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:46:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:46:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 18:46:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:46:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:46:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:46:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:46:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:17,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:17,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171542230] [2022-11-18 18:46:17,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171542230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:17,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:17,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:17,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308692169] [2022-11-18 18:46:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:17,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:17,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:17,712 INFO L87 Difference]: Start difference. First operand 1877 states and 3198 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:19,887 INFO L93 Difference]: Finished difference Result 4594 states and 7973 transitions. [2022-11-18 18:46:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:19,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-11-18 18:46:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:19,904 INFO L225 Difference]: With dead ends: 4594 [2022-11-18 18:46:19,904 INFO L226 Difference]: Without dead ends: 2983 [2022-11-18 18:46:19,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:19,910 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1314 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:19,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 995 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 18:46:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2022-11-18 18:46:20,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2855. [2022-11-18 18:46:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2326 states have (on average 1.6504729148753225) internal successors, (3839), 2332 states have internal predecessors, (3839), 503 states have call successors, (503), 21 states have call predecessors, (503), 25 states have return successors, (550), 501 states have call predecessors, (550), 502 states have call successors, (550) [2022-11-18 18:46:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 4892 transitions. [2022-11-18 18:46:20,311 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 4892 transitions. Word has length 129 [2022-11-18 18:46:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:20,312 INFO L495 AbstractCegarLoop]: Abstraction has 2855 states and 4892 transitions. [2022-11-18 18:46:20,312 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 4892 transitions. [2022-11-18 18:46:20,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-18 18:46:20,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:20,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:20,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:46:20,328 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:20,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:20,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2006981830, now seen corresponding path program 1 times [2022-11-18 18:46:20,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:20,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187607032] [2022-11-18 18:46:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:20,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 18:46:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:46:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:46:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:46:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 18:46:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:46:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 18:46:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:20,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:20,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187607032] [2022-11-18 18:46:20,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187607032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:20,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:20,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:20,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617479805] [2022-11-18 18:46:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:20,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:20,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:20,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:20,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:20,481 INFO L87 Difference]: Start difference. First operand 2855 states and 4892 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:22,761 INFO L93 Difference]: Finished difference Result 6933 states and 12108 transitions. [2022-11-18 18:46:22,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:22,762 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-11-18 18:46:22,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:22,784 INFO L225 Difference]: With dead ends: 6933 [2022-11-18 18:46:22,784 INFO L226 Difference]: Without dead ends: 4563 [2022-11-18 18:46:22,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:22,793 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1315 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:22,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 997 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 18:46:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2022-11-18 18:46:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 4435. [2022-11-18 18:46:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4435 states, 3661 states have (on average 1.6539196940726577) internal successors, (6055), 3667 states have internal predecessors, (6055), 748 states have call successors, (748), 21 states have call predecessors, (748), 25 states have return successors, (821), 746 states have call predecessors, (821), 747 states have call successors, (821) [2022-11-18 18:46:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 7624 transitions. [2022-11-18 18:46:23,351 INFO L78 Accepts]: Start accepts. Automaton has 4435 states and 7624 transitions. Word has length 130 [2022-11-18 18:46:23,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:23,351 INFO L495 AbstractCegarLoop]: Abstraction has 4435 states and 7624 transitions. [2022-11-18 18:46:23,352 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4435 states and 7624 transitions. [2022-11-18 18:46:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-18 18:46:23,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:23,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:23,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:46:23,367 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:23,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1497038696, now seen corresponding path program 1 times [2022-11-18 18:46:23,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:23,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710572711] [2022-11-18 18:46:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:23,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 18:46:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 18:46:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:46:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 18:46:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 18:46:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 18:46:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 18:46:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:23,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710572711] [2022-11-18 18:46:23,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710572711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:23,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:23,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:23,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393712030] [2022-11-18 18:46:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:23,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:23,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:23,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:23,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:23,502 INFO L87 Difference]: Start difference. First operand 4435 states and 7624 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:25,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:25,936 INFO L93 Difference]: Finished difference Result 11104 states and 19437 transitions. [2022-11-18 18:46:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2022-11-18 18:46:25,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:25,975 INFO L225 Difference]: With dead ends: 11104 [2022-11-18 18:46:25,975 INFO L226 Difference]: Without dead ends: 7406 [2022-11-18 18:46:25,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:25,987 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1313 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:25,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1061 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 18:46:25,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2022-11-18 18:46:26,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 7278. [2022-11-18 18:46:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7278 states, 6011 states have (on average 1.6493095990683746) internal successors, (9914), 6017 states have internal predecessors, (9914), 1241 states have call successors, (1241), 21 states have call predecessors, (1241), 25 states have return successors, (1358), 1239 states have call predecessors, (1358), 1240 states have call successors, (1358) [2022-11-18 18:46:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 12513 transitions. [2022-11-18 18:46:26,742 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 12513 transitions. Word has length 131 [2022-11-18 18:46:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:26,743 INFO L495 AbstractCegarLoop]: Abstraction has 7278 states and 12513 transitions. [2022-11-18 18:46:26,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 12513 transitions. [2022-11-18 18:46:26,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-18 18:46:26,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:26,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:26,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:46:26,764 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:26,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:26,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2100405654, now seen corresponding path program 1 times [2022-11-18 18:46:26,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:26,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201671527] [2022-11-18 18:46:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:26,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 18:46:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:46:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:46:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:46:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:46:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:46:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:46:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:26,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:26,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201671527] [2022-11-18 18:46:26,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201671527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:26,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:26,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:26,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958192244] [2022-11-18 18:46:26,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:26,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:26,897 INFO L87 Difference]: Start difference. First operand 7278 states and 12513 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:30,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:30,143 INFO L93 Difference]: Finished difference Result 18524 states and 32401 transitions. [2022-11-18 18:46:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:30,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2022-11-18 18:46:30,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:30,200 INFO L225 Difference]: With dead ends: 18524 [2022-11-18 18:46:30,200 INFO L226 Difference]: Without dead ends: 12385 [2022-11-18 18:46:30,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:30,221 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1310 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:30,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1002 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 18:46:30,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12385 states. [2022-11-18 18:46:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12385 to 12257. [2022-11-18 18:46:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12257 states, 10168 states have (on average 1.6488001573564122) internal successors, (16765), 10174 states have internal predecessors, (16765), 2063 states have call successors, (2063), 21 states have call predecessors, (2063), 25 states have return successors, (2258), 2061 states have call predecessors, (2258), 2062 states have call successors, (2258) [2022-11-18 18:46:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12257 states to 12257 states and 21086 transitions. [2022-11-18 18:46:31,721 INFO L78 Accepts]: Start accepts. Automaton has 12257 states and 21086 transitions. Word has length 132 [2022-11-18 18:46:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:31,722 INFO L495 AbstractCegarLoop]: Abstraction has 12257 states and 21086 transitions. [2022-11-18 18:46:31,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 12257 states and 21086 transitions. [2022-11-18 18:46:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:46:31,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:31,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:31,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:46:31,761 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:31,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:31,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1293666502, now seen corresponding path program 1 times [2022-11-18 18:46:31,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:31,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509471561] [2022-11-18 18:46:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:31,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 18:46:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:46:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 18:46:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:46:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 18:46:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 18:46:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-18 18:46:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:31,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:31,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509471561] [2022-11-18 18:46:31,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509471561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:31,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:31,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299295757] [2022-11-18 18:46:31,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:31,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:31,919 INFO L87 Difference]: Start difference. First operand 12257 states and 21086 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:35,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:35,832 INFO L93 Difference]: Finished difference Result 29482 states and 51261 transitions. [2022-11-18 18:46:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:35,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2022-11-18 18:46:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:35,920 INFO L225 Difference]: With dead ends: 29482 [2022-11-18 18:46:35,920 INFO L226 Difference]: Without dead ends: 19338 [2022-11-18 18:46:35,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:35,951 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1308 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:35,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 970 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 18:46:35,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19338 states. [2022-11-18 18:46:38,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19338 to 19210. [2022-11-18 18:46:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19210 states, 15918 states have (on average 1.62300540268878) internal successors, (25835), 15924 states have internal predecessors, (25835), 3266 states have call successors, (3266), 21 states have call predecessors, (3266), 25 states have return successors, (3605), 3264 states have call predecessors, (3605), 3265 states have call successors, (3605) [2022-11-18 18:46:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19210 states to 19210 states and 32706 transitions. [2022-11-18 18:46:38,674 INFO L78 Accepts]: Start accepts. Automaton has 19210 states and 32706 transitions. Word has length 133 [2022-11-18 18:46:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:38,675 INFO L495 AbstractCegarLoop]: Abstraction has 19210 states and 32706 transitions. [2022-11-18 18:46:38,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 19210 states and 32706 transitions. [2022-11-18 18:46:38,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 18:46:38,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:38,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:38,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:46:38,708 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:38,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:38,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1748463029, now seen corresponding path program 1 times [2022-11-18 18:46:38,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:38,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427730951] [2022-11-18 18:46:38,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:38,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:46:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 18:46:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 18:46:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 18:46:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 18:46:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:46:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 18:46:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:38,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:38,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427730951] [2022-11-18 18:46:38,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427730951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:38,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:38,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:38,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822724152] [2022-11-18 18:46:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:38,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:38,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:38,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:38,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:38,872 INFO L87 Difference]: Start difference. First operand 19210 states and 32706 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:44,279 INFO L93 Difference]: Finished difference Result 50914 states and 88179 transitions. [2022-11-18 18:46:44,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:44,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2022-11-18 18:46:44,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:44,443 INFO L225 Difference]: With dead ends: 50914 [2022-11-18 18:46:44,443 INFO L226 Difference]: Without dead ends: 34459 [2022-11-18 18:46:44,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:44,490 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1304 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:44,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 999 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 18:46:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34459 states. [2022-11-18 18:46:48,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34459 to 34331. [2022-11-18 18:46:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34331 states, 28589 states have (on average 1.6195389835251321) internal successors, (46301), 28595 states have internal predecessors, (46301), 5716 states have call successors, (5716), 21 states have call predecessors, (5716), 25 states have return successors, (6329), 5714 states have call predecessors, (6329), 5715 states have call successors, (6329) [2022-11-18 18:46:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34331 states to 34331 states and 58346 transitions. [2022-11-18 18:46:48,999 INFO L78 Accepts]: Start accepts. Automaton has 34331 states and 58346 transitions. Word has length 134 [2022-11-18 18:46:48,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:48,999 INFO L495 AbstractCegarLoop]: Abstraction has 34331 states and 58346 transitions. [2022-11-18 18:46:48,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 34331 states and 58346 transitions. [2022-11-18 18:46:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 18:46:49,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:49,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:46:49,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:46:49,032 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash -175488780, now seen corresponding path program 1 times [2022-11-18 18:46:49,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:49,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759182773] [2022-11-18 18:46:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:49,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:46:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:46:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:46:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:46:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:46:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:46:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 18:46:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:46:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:46:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 18:46:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:46:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:46:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759182773] [2022-11-18 18:46:49,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759182773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:49,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:49,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:46:49,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712938559] [2022-11-18 18:46:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:49,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:46:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:49,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:46:49,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:46:49,187 INFO L87 Difference]: Start difference. First operand 34331 states and 58346 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:46:57,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:57,905 INFO L93 Difference]: Finished difference Result 93786 states and 161578 transitions. [2022-11-18 18:46:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:46:57,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-18 18:46:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:58,191 INFO L225 Difference]: With dead ends: 93786 [2022-11-18 18:46:58,192 INFO L226 Difference]: Without dead ends: 63126 [2022-11-18 18:46:58,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:46:58,471 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1305 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:58,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 1002 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 18:46:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63126 states. [2022-11-18 18:47:05,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63126 to 62998. [2022-11-18 18:47:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62998 states, 52743 states have (on average 1.6151148019642416) internal successors, (85186), 52749 states have internal predecessors, (85186), 10229 states have call successors, (10229), 21 states have call predecessors, (10229), 25 states have return successors, (11374), 10227 states have call predecessors, (11374), 10228 states have call successors, (11374) [2022-11-18 18:47:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62998 states to 62998 states and 106789 transitions. [2022-11-18 18:47:05,735 INFO L78 Accepts]: Start accepts. Automaton has 62998 states and 106789 transitions. Word has length 135 [2022-11-18 18:47:05,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:05,736 INFO L495 AbstractCegarLoop]: Abstraction has 62998 states and 106789 transitions. [2022-11-18 18:47:05,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:47:05,736 INFO L276 IsEmpty]: Start isEmpty. Operand 62998 states and 106789 transitions. [2022-11-18 18:47:05,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-18 18:47:05,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:05,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:05,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:47:05,779 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash -476344885, now seen corresponding path program 1 times [2022-11-18 18:47:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:05,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695705351] [2022-11-18 18:47:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:05,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:47:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:47:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:47:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:47:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:47:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 18:47:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 18:47:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:47:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 18:47:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:47:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:47:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 18:47:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 18:47:06,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:06,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695705351] [2022-11-18 18:47:06,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695705351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:06,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:06,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:47:06,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524019478] [2022-11-18 18:47:06,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:06,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:47:06,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:06,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:47:06,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:47:06,283 INFO L87 Difference]: Start difference. First operand 62998 states and 106789 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)