./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:43:57,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:43:57,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:43:57,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:43:57,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:43:57,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:43:57,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:43:57,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:43:57,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:43:57,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:43:57,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:43:57,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:43:57,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:43:57,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:43:57,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:43:57,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:43:57,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:43:57,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:43:57,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:43:57,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:43:57,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:43:57,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:43:57,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:43:57,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:43:57,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:43:57,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:43:57,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:43:57,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:43:57,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:43:57,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:43:57,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:43:57,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:43:57,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:43:57,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:43:57,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:43:57,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:43:57,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:43:57,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:43:57,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:43:57,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:43:57,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:43:57,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:43:57,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:43:57,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:43:57,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:43:57,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:43:57,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:43:57,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:43:57,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:43:57,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:43:57,397 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:43:57,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:43:57,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:43:57,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:43:57,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:43:57,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:43:57,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:43:57,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:43:57,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:43:57,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:43:57,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:43:57,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:43:57,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:43:57,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:43:57,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:43:57,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:43:57,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:43:57,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:43:57,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:43:57,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:43:57,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:43:57,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:43:57,406 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:43:57,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:43:57,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:43:57,407 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_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 [2022-11-16 12:43:57,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:43:57,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:43:57,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:43:57,859 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:43:57,860 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:43:57,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2022-11-16 12:43:57,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/data/9d233ba94/4b99846628cc4a60903d85e21a4733a0/FLAGe22f8830c [2022-11-16 12:43:58,725 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:43:58,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2022-11-16 12:43:58,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/data/9d233ba94/4b99846628cc4a60903d85e21a4733a0/FLAGe22f8830c [2022-11-16 12:43:58,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/data/9d233ba94/4b99846628cc4a60903d85e21a4733a0 [2022-11-16 12:43:58,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:43:58,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:43:58,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:43:58,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:43:58,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:43:58,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:43:58" (1/1) ... [2022-11-16 12:43:58,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb4e022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:43:58, skipping insertion in model container [2022-11-16 12:43:58,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:43:58" (1/1) ... [2022-11-16 12:43:58,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:43:59,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:43:59,858 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2022-11-16 12:43:59,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:43:59,886 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:44:00,000 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2022-11-16 12:44:00,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:44:00,043 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:44:00,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00 WrapperNode [2022-11-16 12:44:00,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:44:00,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:44:00,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:44:00,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:44:00,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,221 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1086 [2022-11-16 12:44:00,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:44:00,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:44:00,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:44:00,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:44:00,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:44:00,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:44:00,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:44:00,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:44:00,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (1/1) ... [2022-11-16 12:44:00,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:44:00,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:00,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:44:00,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:44:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 12:44:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 12:44:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-16 12:44:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-16 12:44:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 12:44:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 12:44:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-16 12:44:00,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-16 12:44:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 12:44:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 12:44:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-16 12:44:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-16 12:44:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 12:44:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 12:44:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-16 12:44:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-16 12:44:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 12:44:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 12:44:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-16 12:44:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-16 12:44:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 12:44:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 12:44:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 12:44:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-16 12:44:00,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-16 12:44:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-16 12:44:00,483 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-16 12:44:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 12:44:00,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 12:44:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:44:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 12:44:00,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 12:44:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 12:44:00,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 12:44:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 12:44:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 12:44:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 12:44:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 12:44:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 12:44:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 12:44:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-16 12:44:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-16 12:44:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 12:44:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 12:44:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 12:44:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 12:44:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:44:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 12:44:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 12:44:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 12:44:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 12:44:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:44:00,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:44:00,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:44:00,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:44:02,109 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:44:02,122 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:44:02,128 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:44:02,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:02 BoogieIcfgContainer [2022-11-16 12:44:02,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:44:02,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:44:02,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:44:02,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:44:02,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:43:58" (1/3) ... [2022-11-16 12:44:02,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5750dad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:44:02, skipping insertion in model container [2022-11-16 12:44:02,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:44:00" (2/3) ... [2022-11-16 12:44:02,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5750dad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:44:02, skipping insertion in model container [2022-11-16 12:44:02,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:44:02" (3/3) ... [2022-11-16 12:44:02,153 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.c [2022-11-16 12:44:02,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:44:02,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:44:02,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:44:02,313 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;@57b13876, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:44:02,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:44:02,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-16 12:44:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-16 12:44:02,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:02,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:02,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:02,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:02,395 INFO L85 PathProgramCache]: Analyzing trace with hash -734871692, now seen corresponding path program 1 times [2022-11-16 12:44:02,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:02,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081333076] [2022-11-16 12:44:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:02,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:44:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:44:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:44:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:44:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:44:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:44:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:44:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:44:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:44:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:44:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:44:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:44:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:44:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-16 12:44:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-16 12:44:03,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:03,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081333076] [2022-11-16 12:44:03,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081333076] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222942471] [2022-11-16 12:44:03,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:03,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:03,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:03,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:44:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:04,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:44:04,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-16 12:44:04,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:44:04,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222942471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:04,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:44:04,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-16 12:44:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033188914] [2022-11-16 12:44:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:04,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:44:04,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:04,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:44:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:44:04,367 INFO L87 Difference]: Start difference. First operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:04,468 INFO L93 Difference]: Finished difference Result 602 states and 904 transitions. [2022-11-16 12:44:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:44:04,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2022-11-16 12:44:04,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:04,515 INFO L225 Difference]: With dead ends: 602 [2022-11-16 12:44:04,515 INFO L226 Difference]: Without dead ends: 393 [2022-11-16 12:44:04,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:44:04,532 INFO L413 NwaCegarLoop]: 607 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, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:04,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:44:04,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-16 12:44:04,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-16 12:44:04,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 306 states have (on average 1.5555555555555556) internal successors, (476), 310 states have internal predecessors, (476), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-16 12:44:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 599 transitions. [2022-11-16 12:44:04,705 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 599 transitions. Word has length 147 [2022-11-16 12:44:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:04,710 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 599 transitions. [2022-11-16 12:44:04,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 599 transitions. [2022-11-16 12:44:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-16 12:44:04,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:04,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:04,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 12:44:04,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 12:44:04,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash 125672812, now seen corresponding path program 1 times [2022-11-16 12:44:04,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:04,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151497534] [2022-11-16 12:44:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:04,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:44:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:44:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:44:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:44:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 12:44:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:44:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:44:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:44:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:44:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:44:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:44:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:44:05,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:05,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151497534] [2022-11-16 12:44:05,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151497534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:05,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330842718] [2022-11-16 12:44:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:05,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:05,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:05,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:44:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:05,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:44:05,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:06,006 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-16 12:44:06,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:44:06,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330842718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:06,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:44:06,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-16 12:44:06,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974914830] [2022-11-16 12:44:06,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:06,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:44:06,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:44:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:44:06,017 INFO L87 Difference]: Start difference. First operand 393 states and 599 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:06,114 INFO L93 Difference]: Finished difference Result 592 states and 882 transitions. [2022-11-16 12:44:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:44:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2022-11-16 12:44:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:06,125 INFO L225 Difference]: With dead ends: 592 [2022-11-16 12:44:06,126 INFO L226 Difference]: Without dead ends: 396 [2022-11-16 12:44:06,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:44:06,130 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:06,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:44:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-16 12:44:06,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2022-11-16 12:44:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 308 states have (on average 1.551948051948052) internal successors, (478), 312 states have internal predecessors, (478), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-16 12:44:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 601 transitions. [2022-11-16 12:44:06,178 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 601 transitions. Word has length 129 [2022-11-16 12:44:06,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:06,181 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 601 transitions. [2022-11-16 12:44:06,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 601 transitions. [2022-11-16 12:44:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-16 12:44:06,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:06,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:06,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 12:44:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:06,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -229734979, now seen corresponding path program 1 times [2022-11-16 12:44:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:06,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976599636] [2022-11-16 12:44:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:44:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:44:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:44:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:44:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:44:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:44:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:44:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:44:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:44:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:44:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:44:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:44:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:44:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 12:44:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-16 12:44:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:06,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976599636] [2022-11-16 12:44:06,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976599636] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:06,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702703347] [2022-11-16 12:44:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:06,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:06,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:06,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:06,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:44:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:44:07,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-16 12:44:07,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:44:07,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702703347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:07,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:44:07,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-16 12:44:07,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566263035] [2022-11-16 12:44:07,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:07,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:44:07,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:44:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:44:07,355 INFO L87 Difference]: Start difference. First operand 395 states and 601 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:07,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:07,402 INFO L93 Difference]: Finished difference Result 843 states and 1302 transitions. [2022-11-16 12:44:07,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:44:07,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-16 12:44:07,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:07,406 INFO L225 Difference]: With dead ends: 843 [2022-11-16 12:44:07,407 INFO L226 Difference]: Without dead ends: 475 [2022-11-16 12:44:07,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:44:07,410 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 142 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:07,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1182 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:44:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-16 12:44:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2022-11-16 12:44:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 366 states have (on average 1.5710382513661203) internal successors, (575), 370 states have internal predecessors, (575), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-16 12:44:07,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 726 transitions. [2022-11-16 12:44:07,451 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 726 transitions. Word has length 157 [2022-11-16 12:44:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:07,452 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 726 transitions. [2022-11-16 12:44:07,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 726 transitions. [2022-11-16 12:44:07,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-16 12:44:07,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:07,459 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:07,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:44:07,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 12:44:07,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:07,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash 94477727, now seen corresponding path program 1 times [2022-11-16 12:44:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:07,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417201906] [2022-11-16 12:44:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:07,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:44:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:44:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:44:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 12:44:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:44:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:44:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:44:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:44:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:44:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:44:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:44:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 12:44:08,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:08,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417201906] [2022-11-16 12:44:08,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417201906] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:08,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371653954] [2022-11-16 12:44:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:08,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:08,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:08,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:08,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:44:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:44:08,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 12:44:08,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:44:08,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371653954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:08,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:44:08,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-16 12:44:08,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689431736] [2022-11-16 12:44:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:08,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:44:08,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:08,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:44:08,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:44:08,624 INFO L87 Difference]: Start difference. First operand 467 states and 726 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:08,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:08,759 INFO L93 Difference]: Finished difference Result 925 states and 1442 transitions. [2022-11-16 12:44:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:44:08,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2022-11-16 12:44:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:08,765 INFO L225 Difference]: With dead ends: 925 [2022-11-16 12:44:08,766 INFO L226 Difference]: Without dead ends: 469 [2022-11-16 12:44:08,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:44:08,772 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:08,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:44:08,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-16 12:44:08,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-11-16 12:44:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 367 states have (on average 1.569482288828338) internal successors, (576), 372 states have internal predecessors, (576), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2022-11-16 12:44:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 729 transitions. [2022-11-16 12:44:08,814 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 729 transitions. Word has length 139 [2022-11-16 12:44:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:08,814 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 729 transitions. [2022-11-16 12:44:08,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 729 transitions. [2022-11-16 12:44:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-16 12:44:08,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:08,821 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:08,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:44:09,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:09,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:09,032 INFO L85 PathProgramCache]: Analyzing trace with hash 898099261, now seen corresponding path program 1 times [2022-11-16 12:44:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:09,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723507633] [2022-11-16 12:44:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 12:44:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-16 12:44:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 12:44:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:44:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:44:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:44:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:44:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:44:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:44:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 12:44:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-16 12:44:09,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:09,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723507633] [2022-11-16 12:44:09,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723507633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:09,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463314933] [2022-11-16 12:44:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:09,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:09,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:09,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:09,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:44:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:09,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:44:09,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 12:44:09,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:44:09,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463314933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:09,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:44:09,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-16 12:44:09,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254655198] [2022-11-16 12:44:09,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:09,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:44:09,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:09,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:44:09,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:44:09,971 INFO L87 Difference]: Start difference. First operand 469 states and 729 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:10,089 INFO L93 Difference]: Finished difference Result 927 states and 1447 transitions. [2022-11-16 12:44:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:44:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2022-11-16 12:44:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:10,099 INFO L225 Difference]: With dead ends: 927 [2022-11-16 12:44:10,099 INFO L226 Difference]: Without dead ends: 471 [2022-11-16 12:44:10,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:44:10,102 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:10,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:44:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-11-16 12:44:10,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-11-16 12:44:10,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-16 12:44:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 735 transitions. [2022-11-16 12:44:10,146 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 735 transitions. Word has length 140 [2022-11-16 12:44:10,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:10,147 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 735 transitions. [2022-11-16 12:44:10,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 735 transitions. [2022-11-16 12:44:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-16 12:44:10,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:10,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:10,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:44:10,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:10,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:10,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2127844731, now seen corresponding path program 1 times [2022-11-16 12:44:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:10,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535148095] [2022-11-16 12:44:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:10,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:44:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:44:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:44:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:44:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:44:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:44:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:44:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:44:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:44:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 12:44:10,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:10,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535148095] [2022-11-16 12:44:10,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535148095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:10,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:10,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:44:10,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524097405] [2022-11-16 12:44:10,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:10,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:44:10,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:44:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:44:10,718 INFO L87 Difference]: Start difference. First operand 471 states and 735 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:14,809 INFO L93 Difference]: Finished difference Result 1111 states and 1758 transitions. [2022-11-16 12:44:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:44:14,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2022-11-16 12:44:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:14,817 INFO L225 Difference]: With dead ends: 1111 [2022-11-16 12:44:14,817 INFO L226 Difference]: Without dead ends: 663 [2022-11-16 12:44:14,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:44:14,824 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1504 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:14,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1247 Invalid, 3531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [599 Valid, 2932 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-16 12:44:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2022-11-16 12:44:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 471. [2022-11-16 12:44:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2022-11-16 12:44:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 734 transitions. [2022-11-16 12:44:14,916 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 734 transitions. Word has length 141 [2022-11-16 12:44:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:14,917 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 734 transitions. [2022-11-16 12:44:14,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 734 transitions. [2022-11-16 12:44:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-16 12:44:14,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:14,922 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:14,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:44:14,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1541676215, now seen corresponding path program 2 times [2022-11-16 12:44:14,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:14,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125988729] [2022-11-16 12:44:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 12:44:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:44:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:44:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:44:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:44:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:44:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:44:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:44:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:44:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 12:44:15,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125988729] [2022-11-16 12:44:15,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125988729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:15,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:15,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:44:15,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340814460] [2022-11-16 12:44:15,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:15,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:44:15,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:44:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:44:15,312 INFO L87 Difference]: Start difference. First operand 471 states and 734 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:19,176 INFO L93 Difference]: Finished difference Result 1113 states and 1761 transitions. [2022-11-16 12:44:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:44:19,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-11-16 12:44:19,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:19,185 INFO L225 Difference]: With dead ends: 1113 [2022-11-16 12:44:19,185 INFO L226 Difference]: Without dead ends: 665 [2022-11-16 12:44:19,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:44:19,192 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1540 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:19,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 1248 Invalid, 3467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [608 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-16 12:44:19,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-11-16 12:44:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 473. [2022-11-16 12:44:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2022-11-16 12:44:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 737 transitions. [2022-11-16 12:44:19,258 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 737 transitions. Word has length 142 [2022-11-16 12:44:19,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:19,258 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 737 transitions. [2022-11-16 12:44:19,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:44:19,259 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 737 transitions. [2022-11-16 12:44:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 12:44:19,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:19,265 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:19,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:44:19,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:19,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1422901144, now seen corresponding path program 1 times [2022-11-16 12:44:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:19,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287272342] [2022-11-16 12:44:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:19,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:44:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:44:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:44:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:44:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:44:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:44:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:44:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:44:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:44:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:44:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:44:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-16 12:44:19,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:19,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287272342] [2022-11-16 12:44:19,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287272342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:19,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:19,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:44:19,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961023589] [2022-11-16 12:44:19,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:19,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:44:19,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:19,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:44:19,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:44:19,684 INFO L87 Difference]: Start difference. First operand 473 states and 737 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-16 12:44:24,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:24,277 INFO L93 Difference]: Finished difference Result 1111 states and 1756 transitions. [2022-11-16 12:44:24,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:44:24,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 162 [2022-11-16 12:44:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:24,284 INFO L225 Difference]: With dead ends: 1111 [2022-11-16 12:44:24,284 INFO L226 Difference]: Without dead ends: 665 [2022-11-16 12:44:24,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:44:24,288 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1692 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4702 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 4702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:24,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 1628 Invalid, 5358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [656 Valid, 4702 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 12:44:24,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-11-16 12:44:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 473. [2022-11-16 12:44:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-16 12:44:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 736 transitions. [2022-11-16 12:44:24,352 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 736 transitions. Word has length 162 [2022-11-16 12:44:24,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:24,353 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 736 transitions. [2022-11-16 12:44:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-16 12:44:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 736 transitions. [2022-11-16 12:44:24,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-16 12:44:24,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:24,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:24,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:44:24,359 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash -457821138, now seen corresponding path program 2 times [2022-11-16 12:44:24,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:24,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617167325] [2022-11-16 12:44:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:44:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:44:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:44:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:44:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 12:44:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:44:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:44:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:44:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:44:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 12:44:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 12:44:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-16 12:44:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617167325] [2022-11-16 12:44:24,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617167325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:24,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:24,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:44:24,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975007828] [2022-11-16 12:44:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:44:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:24,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:44:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:44:24,871 INFO L87 Difference]: Start difference. First operand 473 states and 736 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-16 12:44:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:29,933 INFO L93 Difference]: Finished difference Result 1113 states and 1762 transitions. [2022-11-16 12:44:29,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:44:29,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2022-11-16 12:44:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:29,941 INFO L225 Difference]: With dead ends: 1113 [2022-11-16 12:44:29,942 INFO L226 Difference]: Without dead ends: 667 [2022-11-16 12:44:29,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:44:29,948 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1656 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4912 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 4912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:29,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 1629 Invalid, 5547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [635 Valid, 4912 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-16 12:44:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-11-16 12:44:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 475. [2022-11-16 12:44:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 370 states have (on average 1.5648648648648649) internal successors, (579), 378 states have internal predecessors, (579), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2022-11-16 12:44:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 742 transitions. [2022-11-16 12:44:30,018 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 742 transitions. Word has length 163 [2022-11-16 12:44:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:30,020 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 742 transitions. [2022-11-16 12:44:30,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-16 12:44:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 742 transitions. [2022-11-16 12:44:30,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 12:44:30,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:30,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:30,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:44:30,025 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:30,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:30,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2064063877, now seen corresponding path program 1 times [2022-11-16 12:44:30,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:30,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161020406] [2022-11-16 12:44:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:30,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:44:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:44:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:44:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:44:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:44:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:44:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:44:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:44:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-16 12:44:30,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:30,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161020406] [2022-11-16 12:44:30,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161020406] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:30,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481934234] [2022-11-16 12:44:30,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:30,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:30,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:30,400 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:30,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:44:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:30,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:44:30,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:44:30,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:44:31,095 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:44:31,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481934234] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:44:31,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:44:31,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-16 12:44:31,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449436861] [2022-11-16 12:44:31,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:44:31,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:44:31,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:44:31,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:44:31,098 INFO L87 Difference]: Start difference. First operand 475 states and 742 transitions. Second operand has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-16 12:44:37,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:37,755 INFO L93 Difference]: Finished difference Result 2022 states and 3400 transitions. [2022-11-16 12:44:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:44:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 145 [2022-11-16 12:44:37,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:37,771 INFO L225 Difference]: With dead ends: 2022 [2022-11-16 12:44:37,772 INFO L226 Difference]: Without dead ends: 1578 [2022-11-16 12:44:37,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-16 12:44:37,787 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 4590 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 5540 mSolverCounterSat, 1685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4592 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 7225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1685 IncrementalHoareTripleChecker+Valid, 5540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:37,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4592 Valid, 3864 Invalid, 7225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1685 Valid, 5540 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-16 12:44:37,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2022-11-16 12:44:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 918. [2022-11-16 12:44:37,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 734 states have (on average 1.6144414168937329) internal successors, (1185), 742 states have internal predecessors, (1185), 155 states have call successors, (155), 24 states have call predecessors, (155), 28 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2022-11-16 12:44:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1516 transitions. [2022-11-16 12:44:37,932 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1516 transitions. Word has length 145 [2022-11-16 12:44:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:37,933 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1516 transitions. [2022-11-16 12:44:37,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-16 12:44:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1516 transitions. [2022-11-16 12:44:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-16 12:44:37,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:37,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:37,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:44:38,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfd768-769b-48bc-b21f-b73a2015dc97/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:44:38,154 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:38,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:38,155 INFO L85 PathProgramCache]: Analyzing trace with hash -649907940, now seen corresponding path program 1 times [2022-11-16 12:44:38,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:38,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459414567] [2022-11-16 12:44:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:38,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:44:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:44:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:44:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:44:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:44:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:44:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:44:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:44:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:44:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:44:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:44:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:38,392 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-16 12:44:38,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:38,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459414567] [2022-11-16 12:44:38,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459414567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:38,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:38,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:44:38,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619805570] [2022-11-16 12:44:38,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:38,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:44:38,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:38,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:44:38,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:44:38,397 INFO L87 Difference]: Start difference. First operand 918 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:41,367 INFO L93 Difference]: Finished difference Result 2373 states and 4008 transitions. [2022-11-16 12:44:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:44:41,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2022-11-16 12:44:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:41,379 INFO L225 Difference]: With dead ends: 2373 [2022-11-16 12:44:41,379 INFO L226 Difference]: Without dead ends: 1533 [2022-11-16 12:44:41,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:44:41,385 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1496 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:41,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1092 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:44:41,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2022-11-16 12:44:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1333. [2022-11-16 12:44:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1070 states have (on average 1.6308411214953271) internal successors, (1745), 1078 states have internal predecessors, (1745), 234 states have call successors, (234), 24 states have call predecessors, (234), 28 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2022-11-16 12:44:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2244 transitions. [2022-11-16 12:44:41,601 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2244 transitions. Word has length 167 [2022-11-16 12:44:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:41,601 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2244 transitions. [2022-11-16 12:44:41,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:41,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2244 transitions. [2022-11-16 12:44:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-16 12:44:41,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:41,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:41,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:44:41,614 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1534638511, now seen corresponding path program 1 times [2022-11-16 12:44:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:41,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022681652] [2022-11-16 12:44:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:41,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:44:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:44:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:44:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:44:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:44:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:44:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:44:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:44:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:44:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:44:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:44:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-16 12:44:41,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:41,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022681652] [2022-11-16 12:44:41,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022681652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:41,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:41,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:44:41,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047866177] [2022-11-16 12:44:41,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:41,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:44:41,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:41,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:44:41,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:44:41,884 INFO L87 Difference]: Start difference. First operand 1333 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:45,037 INFO L93 Difference]: Finished difference Result 3412 states and 5821 transitions. [2022-11-16 12:44:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:44:45,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-11-16 12:44:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:45,055 INFO L225 Difference]: With dead ends: 3412 [2022-11-16 12:44:45,056 INFO L226 Difference]: Without dead ends: 2210 [2022-11-16 12:44:45,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:44:45,062 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1475 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:45,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1046 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 12:44:45,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-11-16 12:44:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2010. [2022-11-16 12:44:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1628 states have (on average 1.6382063882063882) internal successors, (2667), 1636 states have internal predecessors, (2667), 353 states have call successors, (353), 24 states have call predecessors, (353), 28 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2022-11-16 12:44:45,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3404 transitions. [2022-11-16 12:44:45,370 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3404 transitions. Word has length 168 [2022-11-16 12:44:45,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:45,371 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3404 transitions. [2022-11-16 12:44:45,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:44:45,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3404 transitions. [2022-11-16 12:44:45,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-16 12:44:45,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:45,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:45,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:44:45,387 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2065922126, now seen corresponding path program 1 times [2022-11-16 12:44:45,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:45,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989705844] [2022-11-16 12:44:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:44:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:44:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:44:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:44:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:44:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:44:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:44:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:44:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:45,575 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:44:45,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:45,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989705844] [2022-11-16 12:44:45,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989705844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:45,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:45,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:44:45,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499998675] [2022-11-16 12:44:45,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:45,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:44:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:44:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:44:45,579 INFO L87 Difference]: Start difference. First operand 2010 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:48,718 INFO L93 Difference]: Finished difference Result 4997 states and 8600 transitions. [2022-11-16 12:44:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:44:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 150 [2022-11-16 12:44:48,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:48,745 INFO L225 Difference]: With dead ends: 4997 [2022-11-16 12:44:48,746 INFO L226 Difference]: Without dead ends: 3253 [2022-11-16 12:44:48,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:44:48,755 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1508 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:48,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1045 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:44:48,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2022-11-16 12:44:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3053. [2022-11-16 12:44:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2509 states have (on average 1.6440813072937426) internal successors, (4125), 2517 states have internal predecessors, (4125), 515 states have call successors, (515), 24 states have call predecessors, (515), 28 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2022-11-16 12:44:49,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5202 transitions. [2022-11-16 12:44:49,224 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5202 transitions. Word has length 150 [2022-11-16 12:44:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:49,225 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5202 transitions. [2022-11-16 12:44:49,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5202 transitions. [2022-11-16 12:44:49,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-16 12:44:49,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:49,250 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:44:49,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:49,251 INFO L85 PathProgramCache]: Analyzing trace with hash 325181416, now seen corresponding path program 1 times [2022-11-16 12:44:49,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:49,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336960100] [2022-11-16 12:44:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:44:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:44:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:44:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:44:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:44:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:44:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:44:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:44:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:44:49,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:49,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336960100] [2022-11-16 12:44:49,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336960100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:49,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:49,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:44:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321358200] [2022-11-16 12:44:49,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:49,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:44:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:49,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:44:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:44:49,508 INFO L87 Difference]: Start difference. First operand 3053 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:52,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:52,902 INFO L93 Difference]: Finished difference Result 7511 states and 13015 transitions. [2022-11-16 12:44:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:44:52,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2022-11-16 12:44:52,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:52,936 INFO L225 Difference]: With dead ends: 7511 [2022-11-16 12:44:52,936 INFO L226 Difference]: Without dead ends: 4943 [2022-11-16 12:44:52,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:44:52,946 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1498 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:52,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1044 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:44:52,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-11-16 12:44:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4743. [2022-11-16 12:44:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3954 states have (on average 1.6482043500252908) internal successors, (6517), 3962 states have internal predecessors, (6517), 760 states have call successors, (760), 24 states have call predecessors, (760), 28 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2022-11-16 12:44:53,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8110 transitions. [2022-11-16 12:44:53,745 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8110 transitions. Word has length 151 [2022-11-16 12:44:53,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:53,745 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 8110 transitions. [2022-11-16 12:44:53,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8110 transitions. [2022-11-16 12:44:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-16 12:44:53,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:53,776 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:53,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:44:53,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:53,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:53,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1176646670, now seen corresponding path program 1 times [2022-11-16 12:44:53,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:53,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268733186] [2022-11-16 12:44:53,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:53,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:44:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:44:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:44:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:44:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:44:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:44:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 12:44:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:44:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:44:53,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:53,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268733186] [2022-11-16 12:44:53,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268733186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:53,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:53,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:44:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970544606] [2022-11-16 12:44:53,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:53,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:44:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:44:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:44:53,962 INFO L87 Difference]: Start difference. First operand 4743 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:57,600 INFO L93 Difference]: Finished difference Result 11712 states and 20392 transitions. [2022-11-16 12:44:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:44:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 152 [2022-11-16 12:44:57,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:57,653 INFO L225 Difference]: With dead ends: 11712 [2022-11-16 12:44:57,654 INFO L226 Difference]: Without dead ends: 7786 [2022-11-16 12:44:57,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:44:57,670 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1488 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:57,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1091 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:44:57,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7786 states. [2022-11-16 12:44:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7786 to 7586. [2022-11-16 12:44:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6304 states have (on average 1.6459390862944163) internal successors, (10376), 6312 states have internal predecessors, (10376), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 28 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2022-11-16 12:44:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 12999 transitions. [2022-11-16 12:44:59,093 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 12999 transitions. Word has length 152 [2022-11-16 12:44:59,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:59,094 INFO L495 AbstractCegarLoop]: Abstraction has 7586 states and 12999 transitions. [2022-11-16 12:44:59,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:44:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 12999 transitions. [2022-11-16 12:44:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-16 12:44:59,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:59,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:44:59,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:44:59,145 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:59,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:59,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1705876412, now seen corresponding path program 1 times [2022-11-16 12:44:59,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:59,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337803912] [2022-11-16 12:44:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:59,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:44:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:44:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:44:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:44:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:44:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:44:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:44:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:44:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:44:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:44:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-16 12:44:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 12:44:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:44:59,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:59,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337803912] [2022-11-16 12:44:59,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337803912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:59,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:59,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:44:59,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255647738] [2022-11-16 12:44:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:59,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:44:59,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:59,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:44:59,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:44:59,367 INFO L87 Difference]: Start difference. First operand 7586 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:45:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:45:03,567 INFO L93 Difference]: Finished difference Result 19327 states and 33668 transitions. [2022-11-16 12:45:03,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:45:03,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 153 [2022-11-16 12:45:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:45:03,635 INFO L225 Difference]: With dead ends: 19327 [2022-11-16 12:45:03,635 INFO L226 Difference]: Without dead ends: 12960 [2022-11-16 12:45:03,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:45:03,660 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1475 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:45:03,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1048 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:45:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12960 states. [2022-11-16 12:45:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12960 to 12760. [2022-11-16 12:45:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10656 states have (on average 1.645927177177177) internal successors, (17539), 10664 states have internal predecessors, (17539), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 28 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2022-11-16 12:45:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21884 transitions. [2022-11-16 12:45:05,583 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21884 transitions. Word has length 153 [2022-11-16 12:45:05,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:45:05,583 INFO L495 AbstractCegarLoop]: Abstraction has 12760 states and 21884 transitions. [2022-11-16 12:45:05,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:45:05,584 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21884 transitions. [2022-11-16 12:45:05,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-16 12:45:05,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:45:05,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:45:05,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:45:05,633 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:45:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:45:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1100380708, now seen corresponding path program 1 times [2022-11-16 12:45:05,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:45:05,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372808325] [2022-11-16 12:45:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:45:05,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:45:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:45:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:45:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:45:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:45:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:45:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:45:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:45:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:45:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:45:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:45:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:45:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 12:45:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:45:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:45:05,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:45:05,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372808325] [2022-11-16 12:45:05,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372808325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:45:05,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:45:05,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:45:05,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194016095] [2022-11-16 12:45:05,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:45:05,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:45:05,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:45:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:45:05,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:45:05,806 INFO L87 Difference]: Start difference. First operand 12760 states and 21884 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:45:11,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:45:11,076 INFO L93 Difference]: Finished difference Result 30810 states and 53368 transitions. [2022-11-16 12:45:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:45:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 154 [2022-11-16 12:45:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:45:11,203 INFO L225 Difference]: With dead ends: 30810 [2022-11-16 12:45:11,203 INFO L226 Difference]: Without dead ends: 20273 [2022-11-16 12:45:11,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:45:11,251 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1497 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:45:11,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1020 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 12:45:11,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20273 states. [2022-11-16 12:45:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20273 to 20073. [2022-11-16 12:45:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16766 states have (on average 1.6214362400095432) internal successors, (27185), 16774 states have internal predecessors, (27185), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 28 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2022-11-16 12:45:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34080 transitions. [2022-11-16 12:45:13,953 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34080 transitions. Word has length 154 [2022-11-16 12:45:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:45:13,953 INFO L495 AbstractCegarLoop]: Abstraction has 20073 states and 34080 transitions. [2022-11-16 12:45:13,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:45:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34080 transitions. [2022-11-16 12:45:14,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-16 12:45:14,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:45:14,010 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:45:14,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:45:14,011 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:45:14,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:45:14,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1391546251, now seen corresponding path program 1 times [2022-11-16 12:45:14,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:45:14,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564544099] [2022-11-16 12:45:14,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:45:14,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:45:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:45:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:45:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:45:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:45:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:45:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:45:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:45:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:45:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:45:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:45:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:45:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:45:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:45:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:45:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:45:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:45:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-16 12:45:14,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:45:14,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564544099] [2022-11-16 12:45:14,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564544099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:45:14,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:45:14,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:45:14,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913385067] [2022-11-16 12:45:14,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:45:14,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:45:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:45:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:45:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:45:14,212 INFO L87 Difference]: Start difference. First operand 20073 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:45:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:45:21,173 INFO L93 Difference]: Finished difference Result 53252 states and 91902 transitions. [2022-11-16 12:45:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:45:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-11-16 12:45:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:45:21,365 INFO L225 Difference]: With dead ends: 53252 [2022-11-16 12:45:21,366 INFO L226 Difference]: Without dead ends: 36079 [2022-11-16 12:45:21,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:45:21,431 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1505 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:45:21,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1043 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [692 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 12:45:21,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36079 states. [2022-11-16 12:45:26,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36079 to 35879. [2022-11-16 12:45:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30122 states have (on average 1.6183188367306287) internal successors, (48747), 30130 states have internal predecessors, (48747), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 28 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2022-11-16 12:45:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60816 transitions. [2022-11-16 12:45:26,626 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60816 transitions. Word has length 174 [2022-11-16 12:45:26,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:45:26,626 INFO L495 AbstractCegarLoop]: Abstraction has 35879 states and 60816 transitions. [2022-11-16 12:45:26,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:45:26,627 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60816 transitions. [2022-11-16 12:45:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-16 12:45:26,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:45:26,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:45:26,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:45:26,705 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:45:26,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:45:26,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1869458774, now seen corresponding path program 1 times [2022-11-16 12:45:26,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:45:26,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886945070] [2022-11-16 12:45:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:45:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:45:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:45:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:45:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:45:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:45:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:45:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:45:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:45:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:45:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:45:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:45:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:45:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:45:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:45:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:45:26,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:45:26,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886945070] [2022-11-16 12:45:26,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886945070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:45:26,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:45:26,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:45:26,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252098851] [2022-11-16 12:45:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:45:26,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:45:26,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:45:26,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:45:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:45:26,889 INFO L87 Difference]: Start difference. First operand 35879 states and 60816 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:45:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:45:37,063 INFO L93 Difference]: Finished difference Result 98099 states and 168461 transitions. [2022-11-16 12:45:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:45:37,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2022-11-16 12:45:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:45:37,401 INFO L225 Difference]: With dead ends: 98099 [2022-11-16 12:45:37,401 INFO L226 Difference]: Without dead ends: 66076 [2022-11-16 12:45:37,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:45:37,536 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1495 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:45:37,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1044 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:45:37,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66076 states.