./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:31:05,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:31:05,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:31:05,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:31:05,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:31:05,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:31:05,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:31:05,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:31:05,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:31:05,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:31:05,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:31:05,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:31:05,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:31:05,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:31:05,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:31:05,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:31:05,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:31:05,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:31:05,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:31:05,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:31:05,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:31:05,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:31:05,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:31:05,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:31:05,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:31:05,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:31:05,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:31:05,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:31:05,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:31:05,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:31:05,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:31:05,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:31:05,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:31:05,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:31:05,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:31:05,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:31:05,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:31:05,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:31:05,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:31:05,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:31:05,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:31:05,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 09:31:05,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:31:05,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:31:05,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:31:05,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:31:05,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:31:05,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:31:05,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:31:05,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:31:05,335 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:31:05,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:31:05,336 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:31:05,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:31:05,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:31:05,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:31:05,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:31:05,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:31:05,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:31:05,338 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:31:05,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:31:05,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:31:05,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:31:05,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:31:05,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:31:05,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:31:05,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:05,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:31:05,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:31:05,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:31:05,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:31:05,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:31:05,340 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:31:05,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:31:05,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:31:05,341 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_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 [2022-11-20 09:31:05,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:31:05,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:31:05,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:31:05,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:31:05,650 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:31:05,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2022-11-20 09:31:08,736 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:31:09,141 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:31:09,142 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2022-11-20 09:31:09,161 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/data/2105a5bba/60ad6c61df32445abb8fc7de22b20390/FLAG2f0bc3cc4 [2022-11-20 09:31:09,176 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/data/2105a5bba/60ad6c61df32445abb8fc7de22b20390 [2022-11-20 09:31:09,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:31:09,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:31:09,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:09,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:31:09,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:31:09,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:09" (1/1) ... [2022-11-20 09:31:09,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c46d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:09, skipping insertion in model container [2022-11-20 09:31:09,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:09" (1/1) ... [2022-11-20 09:31:09,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:31:09,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:31:09,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2022-11-20 09:31:09,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:10,011 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:31:10,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2022-11-20 09:31:10,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:10,226 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:31:10,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10 WrapperNode [2022-11-20 09:31:10,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:10,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:10,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:31:10,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:31:10,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,351 INFO L138 Inliner]: procedures = 132, calls = 230, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1109 [2022-11-20 09:31:10,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:10,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:31:10,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:31:10,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:31:10,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,408 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:31:10,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:31:10,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:31:10,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:31:10,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (1/1) ... [2022-11-20 09:31:10,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:10,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:10,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:10,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:31:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-20 09:31:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-20 09:31:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 09:31:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 09:31:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-20 09:31:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-20 09:31:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 09:31:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 09:31:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 09:31:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 09:31:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-20 09:31:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-20 09:31:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 09:31:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 09:31:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 09:31:10,559 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 09:31:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 09:31:10,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 09:31:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 09:31:10,559 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 09:31:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 09:31:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 09:31:10,560 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 09:31:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-20 09:31:10,560 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-20 09:31:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 09:31:10,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 09:31:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:31:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-20 09:31:10,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-20 09:31:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 09:31:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 09:31:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 09:31:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 09:31:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 09:31:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 09:31:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 09:31:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 09:31:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 09:31:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 09:31:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 09:31:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 09:31:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 09:31:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 09:31:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:31:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 09:31:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 09:31:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-20 09:31:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-20 09:31:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:31:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:31:10,797 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:31:10,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:31:11,931 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:31:11,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:31:11,957 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:31:11,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:11 BoogieIcfgContainer [2022-11-20 09:31:11,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:31:11,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:31:11,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:31:11,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:31:11,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:31:09" (1/3) ... [2022-11-20 09:31:11,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9a289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:31:11, skipping insertion in model container [2022-11-20 09:31:11,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:10" (2/3) ... [2022-11-20 09:31:11,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9a289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:31:11, skipping insertion in model container [2022-11-20 09:31:11,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:11" (3/3) ... [2022-11-20 09:31:11,984 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product26.cil.c [2022-11-20 09:31:12,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:31:12,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:31:12,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:31:12,103 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;@f9df699, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:31:12,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:31:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-20 09:31:12,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 09:31:12,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:12,134 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:12,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:12,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1772077766, now seen corresponding path program 1 times [2022-11-20 09:31:12,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:12,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177173276] [2022-11-20 09:31:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:12,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:12,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 09:31:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:31:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 09:31:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 09:31:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 09:31:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 09:31:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 09:31:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 09:31:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:31:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,144 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 09:31:13,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:13,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177173276] [2022-11-20 09:31:13,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177173276] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:13,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761529410] [2022-11-20 09:31:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:13,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:13,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:13,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:13,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:31:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:13,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 09:31:13,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 09:31:13,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:13,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761529410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:13,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:13,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-20 09:31:13,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711407181] [2022-11-20 09:31:13,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:13,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:31:13,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:13,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:31:13,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:31:13,642 INFO L87 Difference]: Start difference. First operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 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 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:13,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:13,717 INFO L93 Difference]: Finished difference Result 602 states and 908 transitions. [2022-11-20 09:31:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:31:13,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-11-20 09:31:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:13,735 INFO L225 Difference]: With dead ends: 602 [2022-11-20 09:31:13,735 INFO L226 Difference]: Without dead ends: 393 [2022-11-20 09:31:13,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:31:13,745 INFO L413 NwaCegarLoop]: 609 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, 609 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:13,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:31:13,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-20 09:31:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-20 09:31:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 307 states have (on average 1.5570032573289903) internal successors, (478), 311 states have internal predecessors, (478), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-20 09:31:13,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2022-11-20 09:31:13,819 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 98 [2022-11-20 09:31:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:13,821 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2022-11-20 09:31:13,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2022-11-20 09:31:13,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 09:31:13,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:13,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:13,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 09:31:14,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 09:31:14,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1213717743, now seen corresponding path program 1 times [2022-11-20 09:31:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:14,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526331876] [2022-11-20 09:31:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 09:31:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:31:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 09:31:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:31:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 09:31:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 09:31:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 09:31:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:31:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 09:31:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 09:31:14,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:14,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526331876] [2022-11-20 09:31:14,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526331876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:14,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733312306] [2022-11-20 09:31:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:14,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:14,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:14,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:14,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 09:31:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:31:14,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 09:31:14,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:14,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733312306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:14,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:14,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 09:31:14,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593578326] [2022-11-20 09:31:14,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:14,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:14,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:14,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:14,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:14,799 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:14,858 INFO L93 Difference]: Finished difference Result 592 states and 886 transitions. [2022-11-20 09:31:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:14,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2022-11-20 09:31:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:14,863 INFO L225 Difference]: With dead ends: 592 [2022-11-20 09:31:14,863 INFO L226 Difference]: Without dead ends: 396 [2022-11-20 09:31:14,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:14,867 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:14,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:31:14,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-20 09:31:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2022-11-20 09:31:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 313 states have internal predecessors, (480), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-20 09:31:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 603 transitions. [2022-11-20 09:31:14,910 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 603 transitions. Word has length 99 [2022-11-20 09:31:14,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:14,911 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 603 transitions. [2022-11-20 09:31:14,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 603 transitions. [2022-11-20 09:31:14,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 09:31:14,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:14,914 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:14,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 09:31:15,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:15,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1440636413, now seen corresponding path program 1 times [2022-11-20 09:31:15,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:15,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259797697] [2022-11-20 09:31:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:15,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 09:31:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:31:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 09:31:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 09:31:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 09:31:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 09:31:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 09:31:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 09:31:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 09:31:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:31:15,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:15,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259797697] [2022-11-20 09:31:15,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259797697] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:15,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921934742] [2022-11-20 09:31:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:15,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:15,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:15,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:15,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 09:31:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:31:15,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 09:31:15,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:15,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921934742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:15,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:15,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 09:31:15,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684332442] [2022-11-20 09:31:15,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:15,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:15,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:15,869 INFO L87 Difference]: Start difference. First operand 395 states and 603 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:15,951 INFO L93 Difference]: Finished difference Result 843 states and 1306 transitions. [2022-11-20 09:31:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:15,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-11-20 09:31:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:15,963 INFO L225 Difference]: With dead ends: 843 [2022-11-20 09:31:15,963 INFO L226 Difference]: Without dead ends: 475 [2022-11-20 09:31:15,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:15,972 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 142 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:15,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1176 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:31:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-20 09:31:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2022-11-20 09:31:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 367 states have (on average 1.5722070844686649) internal successors, (577), 371 states have internal predecessors, (577), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-20 09:31:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 728 transitions. [2022-11-20 09:31:16,037 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 728 transitions. Word has length 108 [2022-11-20 09:31:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:16,038 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 728 transitions. [2022-11-20 09:31:16,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 728 transitions. [2022-11-20 09:31:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-20 09:31:16,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:16,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:16,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:16,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:16,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:16,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash 630003650, now seen corresponding path program 1 times [2022-11-20 09:31:16,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:16,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918875447] [2022-11-20 09:31:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:16,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 09:31:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:31:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 09:31:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 09:31:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 09:31:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:31:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 09:31:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 09:31:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 09:31:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:31:16,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:16,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918875447] [2022-11-20 09:31:16,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918875447] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:16,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406583390] [2022-11-20 09:31:16,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:16,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:16,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:16,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:16,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 09:31:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:16,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:31:16,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 09:31:16,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:16,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406583390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:16,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:16,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-20 09:31:16,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876816415] [2022-11-20 09:31:16,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:16,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:16,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:16,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:16,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:31:16,967 INFO L87 Difference]: Start difference. First operand 467 states and 728 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:17,074 INFO L93 Difference]: Finished difference Result 925 states and 1446 transitions. [2022-11-20 09:31:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2022-11-20 09:31:17,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:17,081 INFO L225 Difference]: With dead ends: 925 [2022-11-20 09:31:17,081 INFO L226 Difference]: Without dead ends: 469 [2022-11-20 09:31:17,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:17,088 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 160 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:17,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2185 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:31:17,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-20 09:31:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-11-20 09:31:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 368 states have (on average 1.5706521739130435) internal successors, (578), 373 states have internal predecessors, (578), 76 states have call successors, (76), 23 states have call predecessors, (76), 24 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2022-11-20 09:31:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 731 transitions. [2022-11-20 09:31:17,140 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 731 transitions. Word has length 109 [2022-11-20 09:31:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:17,141 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 731 transitions. [2022-11-20 09:31:17,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 731 transitions. [2022-11-20 09:31:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-20 09:31:17,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:17,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:17,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:17,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:17,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1737380185, now seen corresponding path program 1 times [2022-11-20 09:31:17,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:17,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125788555] [2022-11-20 09:31:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-20 09:31:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 09:31:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 09:31:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 09:31:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 09:31:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 09:31:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 09:31:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:31:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 09:31:17,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:17,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125788555] [2022-11-20 09:31:17,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125788555] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:17,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149446261] [2022-11-20 09:31:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:17,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:17,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:17,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:17,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 09:31:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:31:18,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 09:31:18,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:18,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149446261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:18,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:18,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-20 09:31:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718990382] [2022-11-20 09:31:18,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:18,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:18,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:18,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:18,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:31:18,089 INFO L87 Difference]: Start difference. First operand 469 states and 731 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:18,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:18,181 INFO L93 Difference]: Finished difference Result 927 states and 1451 transitions. [2022-11-20 09:31:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:18,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2022-11-20 09:31:18,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:18,185 INFO L225 Difference]: With dead ends: 927 [2022-11-20 09:31:18,185 INFO L226 Difference]: Without dead ends: 471 [2022-11-20 09:31:18,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:31:18,188 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 159 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:18,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2174 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:31:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-11-20 09:31:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-11-20 09:31:18,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-20 09:31:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2022-11-20 09:31:18,216 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 110 [2022-11-20 09:31:18,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:18,216 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2022-11-20 09:31:18,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2022-11-20 09:31:18,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 09:31:18,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:18,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:18,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:18,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:18,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:18,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1454142977, now seen corresponding path program 1 times [2022-11-20 09:31:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:18,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395748094] [2022-11-20 09:31:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:18,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 09:31:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:31:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:31:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 09:31:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 09:31:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:31:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:31:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:31:18,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:18,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395748094] [2022-11-20 09:31:18,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395748094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:18,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:18,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:31:18,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988029763] [2022-11-20 09:31:18,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:18,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:31:18,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:18,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:31:18,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:31:18,697 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:22,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:22,036 INFO L93 Difference]: Finished difference Result 1112 states and 1766 transitions. [2022-11-20 09:31:22,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:31:22,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-11-20 09:31:22,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:22,043 INFO L225 Difference]: With dead ends: 1112 [2022-11-20 09:31:22,043 INFO L226 Difference]: Without dead ends: 664 [2022-11-20 09:31:22,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-20 09:31:22,047 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1474 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:22,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1248 Invalid, 3652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [565 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 09:31:22,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-11-20 09:31:22,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 471. [2022-11-20 09:31:22,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2022-11-20 09:31:22,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2022-11-20 09:31:22,110 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 111 [2022-11-20 09:31:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:22,110 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2022-11-20 09:31:22,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2022-11-20 09:31:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-20 09:31:22,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:22,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:22,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:31:22,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:22,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1166401654, now seen corresponding path program 2 times [2022-11-20 09:31:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:22,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66080404] [2022-11-20 09:31:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:22,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 09:31:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 09:31:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:31:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 09:31:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:31:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 09:31:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 09:31:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:31:22,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:22,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66080404] [2022-11-20 09:31:22,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66080404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:22,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:22,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:31:22,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095828930] [2022-11-20 09:31:22,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:22,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:31:22,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:31:22,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:31:22,364 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:25,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:25,436 INFO L93 Difference]: Finished difference Result 1114 states and 1769 transitions. [2022-11-20 09:31:25,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:31:25,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2022-11-20 09:31:25,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:25,443 INFO L225 Difference]: With dead ends: 1114 [2022-11-20 09:31:25,443 INFO L226 Difference]: Without dead ends: 666 [2022-11-20 09:31:25,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-20 09:31:25,446 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1471 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:25,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1246 Invalid, 3649 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [580 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 09:31:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-11-20 09:31:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2022-11-20 09:31:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2022-11-20 09:31:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 739 transitions. [2022-11-20 09:31:25,498 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 739 transitions. Word has length 112 [2022-11-20 09:31:25,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:25,499 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 739 transitions. [2022-11-20 09:31:25,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:31:25,499 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 739 transitions. [2022-11-20 09:31:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 09:31:25,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:25,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:25,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:31:25,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:25,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:25,503 INFO L85 PathProgramCache]: Analyzing trace with hash 904019238, now seen corresponding path program 1 times [2022-11-20 09:31:25,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:25,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287921316] [2022-11-20 09:31:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:25,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 09:31:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 09:31:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 09:31:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 09:31:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 09:31:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 09:31:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 09:31:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:25,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287921316] [2022-11-20 09:31:25,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287921316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:25,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:25,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:31:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238128155] [2022-11-20 09:31:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:25,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:31:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:31:25,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:31:25,811 INFO L87 Difference]: Start difference. First operand 473 states and 739 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 09:31:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:29,964 INFO L93 Difference]: Finished difference Result 1112 states and 1764 transitions. [2022-11-20 09:31:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 09:31:29,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2022-11-20 09:31:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:29,969 INFO L225 Difference]: With dead ends: 1112 [2022-11-20 09:31:29,970 INFO L226 Difference]: Without dead ends: 666 [2022-11-20 09:31:29,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 09:31:29,972 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1626 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5128 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 5128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:29,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 1628 Invalid, 5740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [612 Valid, 5128 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 09:31:29,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-11-20 09:31:30,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2022-11-20 09:31:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-20 09:31:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 738 transitions. [2022-11-20 09:31:30,023 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 738 transitions. Word has length 113 [2022-11-20 09:31:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:30,024 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 738 transitions. [2022-11-20 09:31:30,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 09:31:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 738 transitions. [2022-11-20 09:31:30,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 09:31:30,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:30,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:30,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:31:30,027 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:30,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:30,029 INFO L85 PathProgramCache]: Analyzing trace with hash 335510668, now seen corresponding path program 2 times [2022-11-20 09:31:30,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:30,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806566403] [2022-11-20 09:31:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:30,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 09:31:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 09:31:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 09:31:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:31:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 09:31:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 09:31:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 09:31:30,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:30,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806566403] [2022-11-20 09:31:30,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806566403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:30,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:30,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:31:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658751728] [2022-11-20 09:31:30,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:30,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:31:30,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:31:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:31:30,324 INFO L87 Difference]: Start difference. First operand 473 states and 738 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 09:31:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:34,318 INFO L93 Difference]: Finished difference Result 1114 states and 1770 transitions. [2022-11-20 09:31:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 09:31:34,319 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2022-11-20 09:31:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:34,330 INFO L225 Difference]: With dead ends: 1114 [2022-11-20 09:31:34,330 INFO L226 Difference]: Without dead ends: 668 [2022-11-20 09:31:34,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-20 09:31:34,335 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1622 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5151 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 5151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:34,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 1628 Invalid, 5757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [606 Valid, 5151 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 09:31:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-11-20 09:31:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 475. [2022-11-20 09:31:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 371 states have (on average 1.5660377358490567) internal successors, (581), 379 states have internal predecessors, (581), 76 states have call successors, (76), 23 states have call predecessors, (76), 27 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2022-11-20 09:31:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 744 transitions. [2022-11-20 09:31:34,390 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 744 transitions. Word has length 114 [2022-11-20 09:31:34,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:34,391 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 744 transitions. [2022-11-20 09:31:34,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 09:31:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 744 transitions. [2022-11-20 09:31:34,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-20 09:31:34,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:34,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:34,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:31:34,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:34,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1768204843, now seen corresponding path program 1 times [2022-11-20 09:31:34,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:34,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155455958] [2022-11-20 09:31:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:34,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 09:31:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 09:31:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:31:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 09:31:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 09:31:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:31:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 09:31:34,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:34,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155455958] [2022-11-20 09:31:34,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155455958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:34,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753459331] [2022-11-20 09:31:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:34,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:34,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:34,723 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:34,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 09:31:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:35,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:31:35,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:35,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:35,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753459331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:35,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:31:35,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-20 09:31:35,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847715236] [2022-11-20 09:31:35,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:35,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:31:35,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:31:35,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:31:35,178 INFO L87 Difference]: Start difference. First operand 475 states and 744 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-20 09:31:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:40,944 INFO L93 Difference]: Finished difference Result 2023 states and 3408 transitions. [2022-11-20 09:31:40,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:31:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2022-11-20 09:31:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:40,955 INFO L225 Difference]: With dead ends: 2023 [2022-11-20 09:31:40,955 INFO L226 Difference]: Without dead ends: 1579 [2022-11-20 09:31:40,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-20 09:31:40,958 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 4268 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 6687 mSolverCounterSat, 1625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4270 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 8312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1625 IncrementalHoareTripleChecker+Valid, 6687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:40,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4270 Valid, 3745 Invalid, 8312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1625 Valid, 6687 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-20 09:31:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-11-20 09:31:41,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 918. [2022-11-20 09:31:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 735 states have (on average 1.6149659863945578) internal successors, (1187), 743 states have internal predecessors, (1187), 155 states have call successors, (155), 23 states have call predecessors, (155), 27 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2022-11-20 09:31:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1518 transitions. [2022-11-20 09:31:41,068 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1518 transitions. Word has length 115 [2022-11-20 09:31:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:41,069 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1518 transitions. [2022-11-20 09:31:41,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-20 09:31:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1518 transitions. [2022-11-20 09:31:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-20 09:31:41,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:41,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:41,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:41,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7316857a-1759-44fb-88d4-62d18382d547/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 09:31:41,285 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:41,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:41,285 INFO L85 PathProgramCache]: Analyzing trace with hash -294936037, now seen corresponding path program 1 times [2022-11-20 09:31:41,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:41,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160452047] [2022-11-20 09:31:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:41,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 09:31:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:31:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-20 09:31:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:31:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:31:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:31:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:41,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:41,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160452047] [2022-11-20 09:31:41,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160452047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:41,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:41,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:41,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573374881] [2022-11-20 09:31:41,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:41,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:31:41,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:41,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:41,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:41,417 INFO L87 Difference]: Start difference. First operand 918 states and 1518 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:43,920 INFO L93 Difference]: Finished difference Result 2374 states and 4016 transitions. [2022-11-20 09:31:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:43,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2022-11-20 09:31:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:43,933 INFO L225 Difference]: With dead ends: 2374 [2022-11-20 09:31:43,933 INFO L226 Difference]: Without dead ends: 1534 [2022-11-20 09:31:43,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:43,937 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1455 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:43,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1063 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:31:43,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-11-20 09:31:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1333. [2022-11-20 09:31:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1071 states have (on average 1.6311858076563959) internal successors, (1747), 1079 states have internal predecessors, (1747), 234 states have call successors, (234), 23 states have call predecessors, (234), 27 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2022-11-20 09:31:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2246 transitions. [2022-11-20 09:31:44,095 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2246 transitions. Word has length 118 [2022-11-20 09:31:44,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:44,095 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2246 transitions. [2022-11-20 09:31:44,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2246 transitions. [2022-11-20 09:31:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 09:31:44,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:44,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:44,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:31:44,102 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 7565295, now seen corresponding path program 1 times [2022-11-20 09:31:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:44,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191833346] [2022-11-20 09:31:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 09:31:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 09:31:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 09:31:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 09:31:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 09:31:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 09:31:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:44,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:44,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191833346] [2022-11-20 09:31:44,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191833346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:44,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:44,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:44,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654953628] [2022-11-20 09:31:44,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:44,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:31:44,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:44,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:44,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:44,221 INFO L87 Difference]: Start difference. First operand 1333 states and 2246 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:46,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:46,876 INFO L93 Difference]: Finished difference Result 3413 states and 5829 transitions. [2022-11-20 09:31:46,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:46,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-20 09:31:46,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:46,890 INFO L225 Difference]: With dead ends: 3413 [2022-11-20 09:31:46,891 INFO L226 Difference]: Without dead ends: 2211 [2022-11-20 09:31:46,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:46,896 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1449 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:46,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1070 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 09:31:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2022-11-20 09:31:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2010. [2022-11-20 09:31:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1629 states have (on average 1.638428483732351) internal successors, (2669), 1637 states have internal predecessors, (2669), 353 states have call successors, (353), 23 states have call predecessors, (353), 27 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2022-11-20 09:31:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3406 transitions. [2022-11-20 09:31:47,178 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3406 transitions. Word has length 119 [2022-11-20 09:31:47,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:47,178 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3406 transitions. [2022-11-20 09:31:47,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:47,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3406 transitions. [2022-11-20 09:31:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 09:31:47,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:47,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:47,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:31:47,189 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:47,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:47,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1246694157, now seen corresponding path program 1 times [2022-11-20 09:31:47,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:47,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157422763] [2022-11-20 09:31:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 09:31:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 09:31:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 09:31:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:31:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 09:31:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-20 09:31:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:47,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:47,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157422763] [2022-11-20 09:31:47,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157422763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:47,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:47,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:47,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741391777] [2022-11-20 09:31:47,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:47,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:31:47,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:47,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:47,314 INFO L87 Difference]: Start difference. First operand 2010 states and 3406 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:49,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:49,934 INFO L93 Difference]: Finished difference Result 4998 states and 8608 transitions. [2022-11-20 09:31:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:49,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-11-20 09:31:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:49,954 INFO L225 Difference]: With dead ends: 4998 [2022-11-20 09:31:49,954 INFO L226 Difference]: Without dead ends: 3254 [2022-11-20 09:31:49,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:49,962 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1448 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:49,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1043 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:31:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2022-11-20 09:31:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3053. [2022-11-20 09:31:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2510 states have (on average 1.6442231075697211) internal successors, (4127), 2518 states have internal predecessors, (4127), 515 states have call successors, (515), 23 states have call predecessors, (515), 27 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2022-11-20 09:31:50,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5204 transitions. [2022-11-20 09:31:50,396 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5204 transitions. Word has length 120 [2022-11-20 09:31:50,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:50,397 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5204 transitions. [2022-11-20 09:31:50,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5204 transitions. [2022-11-20 09:31:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 09:31:50,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:50,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:50,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:31:50,409 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1773974226, now seen corresponding path program 1 times [2022-11-20 09:31:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:50,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425582619] [2022-11-20 09:31:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 09:31:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 09:31:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:31:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 09:31:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 09:31:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 09:31:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:50,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:50,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425582619] [2022-11-20 09:31:50,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425582619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:50,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:50,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501571797] [2022-11-20 09:31:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:50,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:31:50,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:50,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:50,542 INFO L87 Difference]: Start difference. First operand 3053 states and 5204 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:53,400 INFO L93 Difference]: Finished difference Result 7512 states and 13023 transitions. [2022-11-20 09:31:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-20 09:31:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:53,425 INFO L225 Difference]: With dead ends: 7512 [2022-11-20 09:31:53,426 INFO L226 Difference]: Without dead ends: 4944 [2022-11-20 09:31:53,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:53,435 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1445 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:53,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 1045 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 09:31:53,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2022-11-20 09:31:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4743. [2022-11-20 09:31:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3955 states have (on average 1.6482932996207333) internal successors, (6519), 3963 states have internal predecessors, (6519), 760 states have call successors, (760), 23 states have call predecessors, (760), 27 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2022-11-20 09:31:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8112 transitions. [2022-11-20 09:31:54,121 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8112 transitions. Word has length 121 [2022-11-20 09:31:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:54,121 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 8112 transitions. [2022-11-20 09:31:54,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:54,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8112 transitions. [2022-11-20 09:31:54,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 09:31:54,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:54,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:54,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:31:54,137 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash -117131631, now seen corresponding path program 1 times [2022-11-20 09:31:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:54,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482030858] [2022-11-20 09:31:54,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:54,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 09:31:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 09:31:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 09:31:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 09:31:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:31:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 09:31:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:54,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:54,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482030858] [2022-11-20 09:31:54,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482030858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:54,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:54,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:54,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471089293] [2022-11-20 09:31:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:54,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:31:54,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:54,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:54,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:54,287 INFO L87 Difference]: Start difference. First operand 4743 states and 8112 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:57,218 INFO L93 Difference]: Finished difference Result 11713 states and 20400 transitions. [2022-11-20 09:31:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-11-20 09:31:57,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:57,260 INFO L225 Difference]: With dead ends: 11713 [2022-11-20 09:31:57,260 INFO L226 Difference]: Without dead ends: 7787 [2022-11-20 09:31:57,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:57,273 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1445 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:57,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1055 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:31:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2022-11-20 09:31:58,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 7586. [2022-11-20 09:31:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6305 states have (on average 1.6459952418715305) internal successors, (10378), 6313 states have internal predecessors, (10378), 1253 states have call successors, (1253), 23 states have call predecessors, (1253), 27 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2022-11-20 09:31:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 13001 transitions. [2022-11-20 09:31:58,337 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 13001 transitions. Word has length 122 [2022-11-20 09:31:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:58,338 INFO L495 AbstractCegarLoop]: Abstraction has 7586 states and 13001 transitions. [2022-11-20 09:31:58,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:31:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 13001 transitions. [2022-11-20 09:31:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-20 09:31:58,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:58,357 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:58,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:31:58,358 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:58,358 INFO L85 PathProgramCache]: Analyzing trace with hash 285644202, now seen corresponding path program 1 times [2022-11-20 09:31:58,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:58,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974083306] [2022-11-20 09:31:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:58,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:31:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:31:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:31:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:31:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:31:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:31:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:31:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 09:31:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:31:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 09:31:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 09:31:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 09:31:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:31:58,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974083306] [2022-11-20 09:31:58,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974083306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:58,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:58,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:58,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109509125] [2022-11-20 09:31:58,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:58,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:31:58,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:58,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:58,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:58,490 INFO L87 Difference]: Start difference. First operand 7586 states and 13001 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:01,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:01,856 INFO L93 Difference]: Finished difference Result 19328 states and 33676 transitions. [2022-11-20 09:32:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:32:01,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-11-20 09:32:01,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:01,974 INFO L225 Difference]: With dead ends: 19328 [2022-11-20 09:32:01,974 INFO L226 Difference]: Without dead ends: 12961 [2022-11-20 09:32:01,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:32:01,997 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1442 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:01,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 1042 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:32:02,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12961 states. [2022-11-20 09:32:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12961 to 12760. [2022-11-20 09:32:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10657 states have (on average 1.6459604016139626) internal successors, (17541), 10665 states have internal predecessors, (17541), 2075 states have call successors, (2075), 23 states have call predecessors, (2075), 27 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2022-11-20 09:32:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21886 transitions. [2022-11-20 09:32:03,581 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21886 transitions. Word has length 123 [2022-11-20 09:32:03,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:03,581 INFO L495 AbstractCegarLoop]: Abstraction has 12760 states and 21886 transitions. [2022-11-20 09:32:03,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:03,582 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21886 transitions. [2022-11-20 09:32:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 09:32:03,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:03,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:32:03,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:32:03,601 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:03,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1444368675, now seen corresponding path program 1 times [2022-11-20 09:32:03,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:32:03,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660837900] [2022-11-20 09:32:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:03,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:32:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:32:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:32:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:32:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:32:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:32:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:32:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 09:32:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:32:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 09:32:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:32:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 09:32:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:32:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:32:03,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:32:03,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660837900] [2022-11-20 09:32:03,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660837900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:03,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:03,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:32:03,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275910194] [2022-11-20 09:32:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:03,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:32:03,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:32:03,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:32:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:32:03,719 INFO L87 Difference]: Start difference. First operand 12760 states and 21886 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:08,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:08,117 INFO L93 Difference]: Finished difference Result 30811 states and 53376 transitions. [2022-11-20 09:32:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:32:08,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2022-11-20 09:32:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:08,219 INFO L225 Difference]: With dead ends: 30811 [2022-11-20 09:32:08,219 INFO L226 Difference]: Without dead ends: 20274 [2022-11-20 09:32:08,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:32:08,256 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1438 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:08,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1047 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:32:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20274 states. [2022-11-20 09:32:10,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20274 to 20073. [2022-11-20 09:32:10,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16767 states have (on average 1.6214588179161449) internal successors, (27187), 16775 states have internal predecessors, (27187), 3278 states have call successors, (3278), 23 states have call predecessors, (3278), 27 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2022-11-20 09:32:10,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34082 transitions. [2022-11-20 09:32:10,673 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34082 transitions. Word has length 124 [2022-11-20 09:32:10,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 20073 states and 34082 transitions. [2022-11-20 09:32:10,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34082 transitions. [2022-11-20 09:32:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-20 09:32:10,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:10,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:32:10,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:32:10,696 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1015474743, now seen corresponding path program 1 times [2022-11-20 09:32:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:32:10,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294842599] [2022-11-20 09:32:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:32:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:32:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:32:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:32:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:32:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:32:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:32:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 09:32:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 09:32:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 09:32:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 09:32:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:32:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 09:32:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:32:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:32:10,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294842599] [2022-11-20 09:32:10,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294842599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:10,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:10,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:32:10,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112825795] [2022-11-20 09:32:10,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:10,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:32:10,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:32:10,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:32:10,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:32:10,820 INFO L87 Difference]: Start difference. First operand 20073 states and 34082 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:17,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:17,031 INFO L93 Difference]: Finished difference Result 53253 states and 91910 transitions. [2022-11-20 09:32:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:32:17,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-11-20 09:32:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:17,174 INFO L225 Difference]: With dead ends: 53253 [2022-11-20 09:32:17,174 INFO L226 Difference]: Without dead ends: 36080 [2022-11-20 09:32:17,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:32:17,215 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1438 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:17,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1047 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:32:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36080 states. [2022-11-20 09:32:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36080 to 35879. [2022-11-20 09:32:21,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30123 states have (on average 1.618331507485974) internal successors, (48749), 30131 states have internal predecessors, (48749), 5728 states have call successors, (5728), 23 states have call predecessors, (5728), 27 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2022-11-20 09:32:21,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60818 transitions. [2022-11-20 09:32:21,930 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60818 transitions. Word has length 125 [2022-11-20 09:32:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:21,931 INFO L495 AbstractCegarLoop]: Abstraction has 35879 states and 60818 transitions. [2022-11-20 09:32:21,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:21,931 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60818 transitions. [2022-11-20 09:32:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 09:32:21,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:21,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:32:21,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:32:21,956 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1528862455, now seen corresponding path program 1 times [2022-11-20 09:32:21,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:32:21,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898474777] [2022-11-20 09:32:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:21,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:32:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:32:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 09:32:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 09:32:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 09:32:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 09:32:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 09:32:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 09:32:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 09:32:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 09:32:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-20 09:32:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 09:32:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 09:32:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 09:32:22,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:32:22,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898474777] [2022-11-20 09:32:22,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898474777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:22,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:22,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:32:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806244685] [2022-11-20 09:32:22,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:22,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:32:22,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:32:22,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:32:22,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:32:22,121 INFO L87 Difference]: Start difference. First operand 35879 states and 60818 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:32:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:30,815 INFO L93 Difference]: Finished difference Result 98100 states and 168469 transitions. [2022-11-20 09:32:30,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:32:30,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2022-11-20 09:32:30,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:31,097 INFO L225 Difference]: With dead ends: 98100 [2022-11-20 09:32:31,098 INFO L226 Difference]: Without dead ends: 66077 [2022-11-20 09:32:31,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:32:31,482 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1439 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:31,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1052 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:32:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66077 states.